diff --git a/pom.xml b/pom.xml
index d3544881af1..9c16099090c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -148,6 +148,8 @@
     <chill.version>0.10.0</chill.version>
     <ivy.version>2.5.1</ivy.version>
     <oro.version>2.0.8</oro.version>
+    <spark.version.short>3.4</spark.version.short>
+    <comet.version>0.14.0-SNAPSHOT</comet.version>
     <!--
     If you changes codahale.metrics.version, you also need to change
     the link to metrics.dropwizard.io in docs/monitoring.md.
@@ -2784,6 +2786,25 @@
         <artifactId>arpack</artifactId>
         <version>${netlib.ludovic.dev.version}</version>
       </dependency>
+      <dependency>
+        <groupId>org.apache.datafusion</groupId>
+        <artifactId>comet-spark-spark${spark.version.short}_${scala.binary.version}</artifactId>
+        <version>${comet.version}</version>
+        <exclusions>
+          <exclusion>
+            <groupId>org.apache.spark</groupId>
+            <artifactId>spark-sql_${scala.binary.version}</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.apache.spark</groupId>
+            <artifactId>spark-core_${scala.binary.version}</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.apache.spark</groupId>
+            <artifactId>spark-catalyst_${scala.binary.version}</artifactId>
+          </exclusion>
+        </exclusions>
+      </dependency>
     </dependencies>
   </dependencyManagement>
 
diff --git a/sql/core/pom.xml b/sql/core/pom.xml
index b386d135da1..46449e3f3f1 100644
--- a/sql/core/pom.xml
+++ b/sql/core/pom.xml
@@ -77,6 +77,10 @@
       <groupId>org.apache.spark</groupId>
       <artifactId>spark-tags_${scala.binary.version}</artifactId>
     </dependency>
+    <dependency>
+      <groupId>org.apache.datafusion</groupId>
+      <artifactId>comet-spark-spark${spark.version.short}_${scala.binary.version}</artifactId>
+    </dependency>
 
     <!--
       This spark-tags test-dep is needed even though it isn't used in this module, otherwise testing-cmds that exclude
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/SparkSession.scala b/sql/core/src/main/scala/org/apache/spark/sql/SparkSession.scala
index c595b50950b..3abb6cb9441 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/SparkSession.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/SparkSession.scala
@@ -102,7 +102,7 @@ class SparkSession private(
       sc: SparkContext,
       initialSessionOptions: java.util.HashMap[String, String]) = {
     this(sc, None, None,
-      SparkSession.applyExtensions(
+      SparkSession.applyExtensions(sc,
         sc.getConf.get(StaticSQLConf.SPARK_SESSION_EXTENSIONS).getOrElse(Seq.empty),
         new SparkSessionExtensions), initialSessionOptions.asScala.toMap)
   }
@@ -1028,7 +1028,7 @@ object SparkSession extends Logging {
         }
 
         loadExtensions(extensions)
-        applyExtensions(
+        applyExtensions(sparkContext,
           sparkContext.getConf.get(StaticSQLConf.SPARK_SESSION_EXTENSIONS).getOrElse(Seq.empty),
           extensions)
 
@@ -1282,14 +1282,24 @@ object SparkSession extends Logging {
     }
   }
 
+  private def loadCometExtension(sparkContext: SparkContext): Seq[String] = {
+    if (sparkContext.getConf.getBoolean("spark.comet.enabled", isCometEnabled)) {
+      Seq("org.apache.comet.CometSparkSessionExtensions")
+    } else {
+      Seq.empty
+    }
+  }
+
   /**
    * Initialize extensions for given extension classnames. The classes will be applied to the
    * extensions passed into this function.
    */
   private def applyExtensions(
+      sparkContext: SparkContext,
       extensionConfClassNames: Seq[String],
       extensions: SparkSessionExtensions): SparkSessionExtensions = {
-    extensionConfClassNames.foreach { extensionConfClassName =>
+    val extensionClassNames = extensionConfClassNames ++ loadCometExtension(sparkContext)
+    extensionClassNames.foreach { extensionConfClassName =>
       try {
         val extensionConfClass = Utils.classForName(extensionConfClassName)
         val extensionConf = extensionConfClass.getConstructor().newInstance()
@@ -1323,4 +1333,12 @@ object SparkSession extends Logging {
       }
     }
   }
+
+  /**
+   * Whether Comet extension is enabled
+   */
+  def isCometEnabled: Boolean = {
+    val v = System.getenv("ENABLE_COMET")
+    v == null || v.toBoolean
+  }
 }
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlanInfo.scala b/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlanInfo.scala
index db587dd9868..aac7295a53d 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlanInfo.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlanInfo.scala
@@ -18,6 +18,7 @@
 package org.apache.spark.sql.execution
 
 import org.apache.spark.annotation.DeveloperApi
+import org.apache.spark.sql.comet.CometScanExec
 import org.apache.spark.sql.execution.adaptive.{AdaptiveSparkPlanExec, QueryStageExec}
 import org.apache.spark.sql.execution.columnar.InMemoryTableScanExec
 import org.apache.spark.sql.execution.exchange.ReusedExchangeExec
@@ -67,6 +68,7 @@ private[execution] object SparkPlanInfo {
     // dump the file scan metadata (e.g file path) to event log
     val metadata = plan match {
       case fileScan: FileSourceScanExec => fileScan.metadata
+      case cometScan: CometScanExec => cometScan.metadata
       case _ => Map[String, String]()
     }
     new SparkPlanInfo(
diff --git a/sql/core/src/test/resources/sql-tests/inputs/explain-aqe.sql b/sql/core/src/test/resources/sql-tests/inputs/explain-aqe.sql
index 7aef901da4f..f3d6e18926d 100644
--- a/sql/core/src/test/resources/sql-tests/inputs/explain-aqe.sql
+++ b/sql/core/src/test/resources/sql-tests/inputs/explain-aqe.sql
@@ -2,3 +2,4 @@
 
 --SET spark.sql.adaptive.enabled=true
 --SET spark.sql.maxMetadataStringLength = 500
+--SET spark.comet.enabled = false
diff --git a/sql/core/src/test/resources/sql-tests/inputs/explain-cbo.sql b/sql/core/src/test/resources/sql-tests/inputs/explain-cbo.sql
index eeb2180f7a5..afd1b5ec289 100644
--- a/sql/core/src/test/resources/sql-tests/inputs/explain-cbo.sql
+++ b/sql/core/src/test/resources/sql-tests/inputs/explain-cbo.sql
@@ -1,5 +1,6 @@
 --SET spark.sql.cbo.enabled=true
 --SET spark.sql.maxMetadataStringLength = 500
+--SET spark.comet.enabled = false
 
 CREATE TABLE explain_temp1(a INT, b INT) USING PARQUET;
 CREATE TABLE explain_temp2(c INT, d INT) USING PARQUET;
diff --git a/sql/core/src/test/resources/sql-tests/inputs/explain.sql b/sql/core/src/test/resources/sql-tests/inputs/explain.sql
index 698ca009b4f..57d774a3617 100644
--- a/sql/core/src/test/resources/sql-tests/inputs/explain.sql
+++ b/sql/core/src/test/resources/sql-tests/inputs/explain.sql
@@ -1,6 +1,7 @@
 --SET spark.sql.codegen.wholeStage = true
 --SET spark.sql.adaptive.enabled = false
 --SET spark.sql.maxMetadataStringLength = 500
+--SET spark.comet.enabled = false
 
 -- Test tables
 CREATE table  explain_temp1 (key int, val int) USING PARQUET;
diff --git a/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/aggregates_part1.sql b/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/aggregates_part1.sql
index 1152d77da0c..f77493f690b 100644
--- a/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/aggregates_part1.sql
+++ b/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/aggregates_part1.sql
@@ -7,6 +7,9 @@
 
 -- avoid bit-exact output here because operations may not be bit-exact.
 -- SET extra_float_digits = 0;
+-- Disable Comet exec due to floating point precision difference
+--SET spark.comet.exec.enabled = false
+
 
 -- Test aggregate operator with codegen on and off.
 --CONFIG_DIM1 spark.sql.codegen.wholeStage=true
diff --git a/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/aggregates_part3.sql b/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/aggregates_part3.sql
index 41fd4de2a09..44cd244d3b0 100644
--- a/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/aggregates_part3.sql
+++ b/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/aggregates_part3.sql
@@ -5,6 +5,9 @@
 -- AGGREGATES [Part 3]
 -- https://github.com/postgres/postgres/blob/REL_12_BETA2/src/test/regress/sql/aggregates.sql#L352-L605
 
+-- Disable Comet exec due to floating point precision difference
+--SET spark.comet.exec.enabled = false
+
 -- Test aggregate operator with codegen on and off.
 --CONFIG_DIM1 spark.sql.codegen.wholeStage=true
 --CONFIG_DIM1 spark.sql.codegen.wholeStage=false,spark.sql.codegen.factoryMode=CODEGEN_ONLY
diff --git a/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/int4.sql b/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/int4.sql
index 3a409eea348..38fed024c98 100644
--- a/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/int4.sql
+++ b/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/int4.sql
@@ -69,6 +69,8 @@ SELECT '' AS one, i.* FROM INT4_TBL i WHERE (i.f1 % smallint('2')) = smallint('1
 -- any evens
 SELECT '' AS three, i.* FROM INT4_TBL i WHERE (i.f1 % int('2')) = smallint('0');
 
+-- https://github.com/apache/datafusion-comet/issues/2215
+--SET spark.comet.exec.enabled=false
 -- [SPARK-28024] Incorrect value when out of range
 SELECT '' AS five, i.f1, i.f1 * smallint('2') AS x FROM INT4_TBL i;
 
diff --git a/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/int8.sql b/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/int8.sql
index fac23b4a26f..2b73732c33f 100644
--- a/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/int8.sql
+++ b/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/int8.sql
@@ -1,6 +1,10 @@
 --
 -- Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
 --
+
+-- Disable Comet exec due to floating point precision difference
+--SET spark.comet.exec.enabled = false
+
 --
 -- INT8
 -- Test int8 64-bit integers.
diff --git a/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/select_having.sql b/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/select_having.sql
index 0efe0877e9b..423d3b3d76d 100644
--- a/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/select_having.sql
+++ b/sql/core/src/test/resources/sql-tests/inputs/postgreSQL/select_having.sql
@@ -1,6 +1,10 @@
 --
 -- Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
 --
+
+-- Disable Comet exec due to floating point precision difference
+--SET spark.comet.exec.enabled = false
+
 --
 -- SELECT_HAVING
 -- https://github.com/postgres/postgres/blob/REL_12_BETA2/src/test/regress/sql/select_having.sql
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala
index cf40e944c09..bdd5be4f462 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala
@@ -38,7 +38,7 @@ import org.apache.spark.sql.catalyst.util.DateTimeConstants
 import org.apache.spark.sql.execution.{ColumnarToRowExec, ExecSubqueryExpression, RDDScanExec, SparkPlan}
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper
 import org.apache.spark.sql.execution.columnar._
-import org.apache.spark.sql.execution.exchange.ShuffleExchangeExec
+import org.apache.spark.sql.execution.exchange.ShuffleExchangeLike
 import org.apache.spark.sql.execution.ui.SparkListenerSQLAdaptiveExecutionUpdate
 import org.apache.spark.sql.functions._
 import org.apache.spark.sql.internal.SQLConf
@@ -516,7 +516,8 @@ class CachedTableSuite extends QueryTest with SQLTestUtils
    */
   private def verifyNumExchanges(df: DataFrame, expected: Int): Unit = {
     assert(
-      collect(df.queryExecution.executedPlan) { case e: ShuffleExchangeExec => e }.size == expected)
+      collect(df.queryExecution.executedPlan) {
+        case _: ShuffleExchangeLike => 1 }.size == expected)
   }
 
   test("A cached table preserves the partitioning and ordering of its cached SparkPlan") {
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/DataFrameAggregateSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/DataFrameAggregateSuite.scala
index 1cc09c3d7fc..f031fa45c33 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/DataFrameAggregateSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/DataFrameAggregateSuite.scala
@@ -27,7 +27,7 @@ import org.apache.spark.SparkException
 import org.apache.spark.sql.execution.WholeStageCodegenExec
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper
 import org.apache.spark.sql.execution.aggregate.{HashAggregateExec, ObjectHashAggregateExec, SortAggregateExec}
-import org.apache.spark.sql.execution.exchange.ShuffleExchangeExec
+import org.apache.spark.sql.execution.exchange.ShuffleExchangeLike
 import org.apache.spark.sql.expressions.Window
 import org.apache.spark.sql.functions._
 import org.apache.spark.sql.internal.SQLConf
@@ -755,7 +755,7 @@ class DataFrameAggregateSuite extends QueryTest
       assert(objHashAggPlans.nonEmpty)
 
       val exchangePlans = collect(aggPlan) {
-        case shuffle: ShuffleExchangeExec => shuffle
+        case shuffle: ShuffleExchangeLike => shuffle
       }
       assert(exchangePlans.length == 1)
     }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/DataFrameJoinSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/DataFrameJoinSuite.scala
index 56e9520fdab..917932336df 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/DataFrameJoinSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/DataFrameJoinSuite.scala
@@ -435,7 +435,9 @@ class DataFrameJoinSuite extends QueryTest
 
     withTempDatabase { dbName =>
       withTable(table1Name, table2Name) {
-        withSQLConf(SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "-1") {
+        withSQLConf(
+            SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "-1",
+            "spark.comet.enabled" -> "false") {
           spark.range(50).write.saveAsTable(s"$dbName.$table1Name")
           spark.range(100).write.saveAsTable(s"$dbName.$table2Name")
 
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
index a9f69ab28a1..760ea0e9565 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
@@ -39,11 +39,12 @@ import org.apache.spark.sql.catalyst.expressions.{Attribute, AttributeMap, Attri
 import org.apache.spark.sql.catalyst.optimizer.ConvertToLocalRelation
 import org.apache.spark.sql.catalyst.plans.logical.{ColumnStat, LeafNode, LocalRelation, LogicalPlan, OneRowRelation, Statistics}
 import org.apache.spark.sql.catalyst.util.DateTimeUtils
+import org.apache.spark.sql.comet.CometBroadcastExchangeExec
 import org.apache.spark.sql.connector.FakeV2Provider
 import org.apache.spark.sql.execution.{FilterExec, LogicalRDD, QueryExecution, SortExec, WholeStageCodegenExec}
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper
 import org.apache.spark.sql.execution.aggregate.HashAggregateExec
-import org.apache.spark.sql.execution.exchange.{BroadcastExchangeExec, ReusedExchangeExec, ShuffleExchangeExec, ShuffleExchangeLike}
+import org.apache.spark.sql.execution.exchange.{BroadcastExchangeExec, ReusedExchangeExec, ShuffleExchangeLike}
 import org.apache.spark.sql.expressions.{Aggregator, Window}
 import org.apache.spark.sql.functions._
 import org.apache.spark.sql.internal.SQLConf
@@ -1981,7 +1982,7 @@ class DataFrameSuite extends QueryTest
           fail("Should not have back to back Aggregates")
         }
         atFirstAgg = true
-      case e: ShuffleExchangeExec => atFirstAgg = false
+      case e: ShuffleExchangeLike => atFirstAgg = false
       case _ =>
     }
   }
@@ -2305,7 +2306,7 @@ class DataFrameSuite extends QueryTest
       checkAnswer(join, df)
       assert(
         collect(join.queryExecution.executedPlan) {
-          case e: ShuffleExchangeExec => true }.size === 1)
+          case _: ShuffleExchangeLike => true }.size === 1)
       assert(
         collect(join.queryExecution.executedPlan) { case e: ReusedExchangeExec => true }.size === 1)
       val broadcasted = broadcast(join)
@@ -2313,10 +2314,12 @@ class DataFrameSuite extends QueryTest
       checkAnswer(join2, df)
       assert(
         collect(join2.queryExecution.executedPlan) {
-          case e: ShuffleExchangeExec => true }.size == 1)
+          case _: ShuffleExchangeLike => true }.size == 1)
       assert(
         collect(join2.queryExecution.executedPlan) {
-          case e: BroadcastExchangeExec => true }.size === 1)
+          case e: BroadcastExchangeExec => true
+          case _: CometBroadcastExchangeExec => true
+        }.size === 1)
       assert(
         collect(join2.queryExecution.executedPlan) { case e: ReusedExchangeExec => true }.size == 4)
     }
@@ -2876,7 +2879,7 @@ class DataFrameSuite extends QueryTest
 
     // Assert that no extra shuffle introduced by cogroup.
     val exchanges = collect(df3.queryExecution.executedPlan) {
-      case h: ShuffleExchangeExec => h
+      case h: ShuffleExchangeLike => h
     }
     assert(exchanges.size == 2)
   }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/DataFrameWindowFunctionsSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/DataFrameWindowFunctionsSuite.scala
index 433b4741979..07148eee480 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/DataFrameWindowFunctionsSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/DataFrameWindowFunctionsSuite.scala
@@ -23,8 +23,9 @@ import org.apache.spark.TestUtils.{assertNotSpilled, assertSpilled}
 import org.apache.spark.sql.catalyst.expressions.{AttributeReference, Expression, Lag, Literal, NonFoldableLiteral}
 import org.apache.spark.sql.catalyst.optimizer.TransposeWindow
 import org.apache.spark.sql.catalyst.plans.physical.HashPartitioning
+import org.apache.spark.sql.comet.execution.shuffle.CometShuffleExchangeExec
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper
-import org.apache.spark.sql.execution.exchange.{ENSURE_REQUIREMENTS, Exchange, ShuffleExchangeExec}
+import org.apache.spark.sql.execution.exchange.{ENSURE_REQUIREMENTS, Exchange, ShuffleExchangeExec, ShuffleExchangeLike}
 import org.apache.spark.sql.execution.window.WindowExec
 import org.apache.spark.sql.expressions.{Aggregator, MutableAggregationBuffer, UserDefinedAggregateFunction, Window}
 import org.apache.spark.sql.functions._
@@ -1186,10 +1187,12 @@ class DataFrameWindowFunctionsSuite extends QueryTest
     }
 
     def isShuffleExecByRequirement(
-        plan: ShuffleExchangeExec,
+        plan: ShuffleExchangeLike,
         desiredClusterColumns: Seq[String]): Boolean = plan match {
       case ShuffleExchangeExec(op: HashPartitioning, _, ENSURE_REQUIREMENTS) =>
         partitionExpressionsColumns(op.expressions) === desiredClusterColumns
+      case CometShuffleExchangeExec(op: HashPartitioning, _, _, ENSURE_REQUIREMENTS, _, _) =>
+        partitionExpressionsColumns(op.expressions) === desiredClusterColumns
       case _ => false
     }
 
@@ -1212,7 +1215,7 @@ class DataFrameWindowFunctionsSuite extends QueryTest
       val shuffleByRequirement = windowed.queryExecution.executedPlan.exists {
         case w: WindowExec =>
           w.child.exists {
-            case s: ShuffleExchangeExec => isShuffleExecByRequirement(s, Seq("key1", "key2"))
+            case s: ShuffleExchangeLike => isShuffleExecByRequirement(s, Seq("key1", "key2"))
             case _ => false
           }
         case _ => false
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/DatasetSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/DatasetSuite.scala
index daef11ae4d6..9f3cc9181f2 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/DatasetSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/DatasetSuite.scala
@@ -39,7 +39,7 @@ import org.apache.spark.sql.catalyst.plans.{LeftAnti, LeftSemi}
 import org.apache.spark.sql.catalyst.util.sideBySide
 import org.apache.spark.sql.execution.{LogicalRDD, RDDScanExec, SQLExecution}
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper
-import org.apache.spark.sql.execution.exchange.{BroadcastExchangeExec, ShuffleExchangeExec}
+import org.apache.spark.sql.execution.exchange.{BroadcastExchangeExec, ShuffleExchangeExec, ShuffleExchangeLike}
 import org.apache.spark.sql.execution.streaming.MemoryStream
 import org.apache.spark.sql.expressions.UserDefinedFunction
 import org.apache.spark.sql.functions._
@@ -2254,7 +2254,7 @@ class DatasetSuite extends QueryTest
 
     // Assert that no extra shuffle introduced by cogroup.
     val exchanges = collect(df3.queryExecution.executedPlan) {
-      case h: ShuffleExchangeExec => h
+      case h: ShuffleExchangeLike => h
     }
     assert(exchanges.size == 2)
   }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/DynamicPartitionPruningSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/DynamicPartitionPruningSuite.scala
index f33432ddb6f..1925aac8d97 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/DynamicPartitionPruningSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/DynamicPartitionPruningSuite.scala
@@ -22,6 +22,7 @@ import org.scalatest.GivenWhenThen
 import org.apache.spark.sql.catalyst.expressions.{DynamicPruningExpression, Expression}
 import org.apache.spark.sql.catalyst.expressions.CodegenObjectFactoryMode._
 import org.apache.spark.sql.catalyst.plans.ExistenceJoin
+import org.apache.spark.sql.comet.CometScanExec
 import org.apache.spark.sql.connector.catalog.{InMemoryTableCatalog, InMemoryTableWithV2FilterCatalog}
 import org.apache.spark.sql.execution._
 import org.apache.spark.sql.execution.adaptive._
@@ -262,6 +263,9 @@ abstract class DynamicPartitionPruningSuiteBase
       case s: BatchScanExec => s.runtimeFilters.collect {
         case d: DynamicPruningExpression => d.child
       }
+      case s: CometScanExec => s.partitionFilters.collect {
+        case d: DynamicPruningExpression => d.child
+      }
       case _ => Nil
     }
   }
@@ -755,7 +759,8 @@ abstract class DynamicPartitionPruningSuiteBase
     }
   }
 
-  test("partition pruning in broadcast hash joins") {
+  test("partition pruning in broadcast hash joins",
+    IgnoreComet("TODO: Support SubqueryBroadcastExec in Comet: #1737")) {
     Given("disable broadcast pruning and disable subquery duplication")
     withSQLConf(
       SQLConf.DYNAMIC_PARTITION_PRUNING_REUSE_BROADCAST_ONLY.key -> "true",
@@ -1027,7 +1032,8 @@ abstract class DynamicPartitionPruningSuiteBase
     }
   }
 
-  test("avoid reordering broadcast join keys to match input hash partitioning") {
+  test("avoid reordering broadcast join keys to match input hash partitioning",
+    IgnoreComet("TODO: https://github.com/apache/datafusion-comet/issues/1839")) {
     withSQLConf(SQLConf.DYNAMIC_PARTITION_PRUNING_REUSE_BROADCAST_ONLY.key -> "false",
       SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "-1") {
       withTable("large", "dimTwo", "dimThree") {
@@ -1215,7 +1221,8 @@ abstract class DynamicPartitionPruningSuiteBase
   }
 
   test("SPARK-32509: Unused Dynamic Pruning filter shouldn't affect " +
-    "canonicalization and exchange reuse") {
+    "canonicalization and exchange reuse",
+    IgnoreComet("TODO: https://github.com/apache/datafusion-comet/issues/1839")) {
     withSQLConf(SQLConf.DYNAMIC_PARTITION_PRUNING_REUSE_BROADCAST_ONLY.key -> "true") {
       withSQLConf(SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "-1") {
         val df = sql(
@@ -1423,7 +1430,8 @@ abstract class DynamicPartitionPruningSuiteBase
     }
   }
 
-  test("SPARK-34637: DPP side broadcast query stage is created firstly") {
+  test("SPARK-34637: DPP side broadcast query stage is created firstly",
+    IgnoreComet("TODO: https://github.com/apache/datafusion-comet/issues/1839")) {
     withSQLConf(SQLConf.DYNAMIC_PARTITION_PRUNING_REUSE_BROADCAST_ONLY.key -> "true") {
       val df = sql(
         """ WITH v as (
@@ -1729,6 +1737,8 @@ abstract class DynamicPartitionPruningV1Suite extends DynamicPartitionPruningDat
               case s: BatchScanExec =>
                 // we use f1 col for v2 tables due to schema pruning
                 s.output.exists(_.exists(_.argString(maxFields = 100).contains("f1")))
+              case s: CometScanExec =>
+                s.output.exists(_.exists(_.argString(maxFields = 100).contains("fid")))
               case _ => false
             }
           assert(scanOption.isDefined)
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/ExplainSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/ExplainSuite.scala
index a6b295578d6..91acca4306f 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/ExplainSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/ExplainSuite.scala
@@ -463,7 +463,8 @@ class ExplainSuite extends ExplainSuiteHelper with DisableAdaptiveExecutionSuite
     }
   }
 
-  test("Explain formatted output for scan operator for datasource V2") {
+  test("Explain formatted output for scan operator for datasource V2",
+      IgnoreComet("Comet explain output is different")) {
     withTempDir { dir =>
       Seq("parquet", "orc", "csv", "json").foreach { fmt =>
         val basePath = dir.getCanonicalPath + "/" + fmt
@@ -541,7 +542,9 @@ class ExplainSuite extends ExplainSuiteHelper with DisableAdaptiveExecutionSuite
   }
 }
 
-class ExplainSuiteAE extends ExplainSuiteHelper with EnableAdaptiveExecutionSuite {
+// Ignored when Comet is enabled. Comet changes expected query plans.
+class ExplainSuiteAE extends ExplainSuiteHelper with EnableAdaptiveExecutionSuite
+    with IgnoreCometSuite {
   import testImplicits._
 
   test("SPARK-35884: Explain Formatted") {
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/FileBasedDataSourceSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/FileBasedDataSourceSuite.scala
index 2796b1cf154..52438178a0e 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/FileBasedDataSourceSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/FileBasedDataSourceSuite.scala
@@ -33,6 +33,7 @@ import org.apache.spark.sql.TestingUDT.{IntervalUDT, NullData, NullUDT}
 import org.apache.spark.sql.catalyst.expressions.{AttributeReference, GreaterThan, Literal}
 import org.apache.spark.sql.catalyst.expressions.IntegralLiteralTestUtils.{negativeInt, positiveInt}
 import org.apache.spark.sql.catalyst.plans.logical.Filter
+import org.apache.spark.sql.comet.{CometBatchScanExec, CometNativeScanExec, CometScanExec, CometSortMergeJoinExec}
 import org.apache.spark.sql.execution.{FileSourceScanLike, SimpleMode}
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper
 import org.apache.spark.sql.execution.datasources.FilePartition
@@ -815,6 +816,7 @@ class FileBasedDataSourceSuite extends QueryTest
             assert(bJoinExec.isEmpty)
             val smJoinExec = collect(joinedDF.queryExecution.executedPlan) {
               case smJoin: SortMergeJoinExec => smJoin
+              case smJoin: CometSortMergeJoinExec => smJoin
             }
             assert(smJoinExec.nonEmpty)
           }
@@ -875,6 +877,7 @@ class FileBasedDataSourceSuite extends QueryTest
 
           val fileScan = df.queryExecution.executedPlan collectFirst {
             case BatchScanExec(_, f: FileScan, _, _, _, _, _, _, _) => f
+            case CometBatchScanExec(BatchScanExec(_, f: FileScan, _, _, _, _, _, _, _), _, _) => f
           }
           assert(fileScan.nonEmpty)
           assert(fileScan.get.partitionFilters.nonEmpty)
@@ -916,6 +919,7 @@ class FileBasedDataSourceSuite extends QueryTest
 
           val fileScan = df.queryExecution.executedPlan collectFirst {
             case BatchScanExec(_, f: FileScan, _, _, _, _, _, _, _) => f
+            case CometBatchScanExec(BatchScanExec(_, f: FileScan, _, _, _, _, _, _, _), _, _) => f
           }
           assert(fileScan.nonEmpty)
           assert(fileScan.get.partitionFilters.isEmpty)
@@ -1100,6 +1104,9 @@ class FileBasedDataSourceSuite extends QueryTest
           val filters = df.queryExecution.executedPlan.collect {
             case f: FileSourceScanLike => f.dataFilters
             case b: BatchScanExec => b.scan.asInstanceOf[FileScan].dataFilters
+            case b: CometScanExec => b.dataFilters
+            case b: CometNativeScanExec => b.dataFilters
+            case b: CometBatchScanExec => b.scan.asInstanceOf[FileScan].dataFilters
           }.flatten
           assert(filters.contains(GreaterThan(scan.logicalPlan.output.head, Literal(5L))))
         }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/IgnoreComet.scala b/sql/core/src/test/scala/org/apache/spark/sql/IgnoreComet.scala
new file mode 100644
index 00000000000..5691536c114
--- /dev/null
+++ b/sql/core/src/test/scala/org/apache/spark/sql/IgnoreComet.scala
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.sql
+
+import org.scalactic.source.Position
+import org.scalatest.Tag
+
+import org.apache.spark.sql.test.SQLTestUtils
+
+/**
+ * Tests with this tag will be ignored when Comet is enabled (e.g., via `ENABLE_COMET`).
+ */
+case class IgnoreComet(reason: String) extends Tag("DisableComet")
+case class IgnoreCometNativeIcebergCompat(reason: String) extends Tag("DisableComet")
+case class IgnoreCometNativeDataFusion(reason: String) extends Tag("DisableComet")
+case class IgnoreCometNativeScan(reason: String) extends Tag("DisableComet")
+
+/**
+ * Helper trait that disables Comet for all tests regardless of default config values.
+ */
+trait IgnoreCometSuite extends SQLTestUtils {
+  override protected def test(testName: String, testTags: Tag*)(testFun: => Any)
+    (implicit pos: Position): Unit = {
+    if (isCometEnabled) {
+      ignore(testName + " (disabled when Comet is on)", testTags: _*)(testFun)
+    } else {
+      super.test(testName, testTags: _*)(testFun)
+    }
+  }
+}
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/InjectRuntimeFilterSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/InjectRuntimeFilterSuite.scala
index fda442eeef0..1b69e4f280e 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/InjectRuntimeFilterSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/InjectRuntimeFilterSuite.scala
@@ -468,7 +468,8 @@ class InjectRuntimeFilterSuite extends QueryTest with SQLTestUtils with SharedSp
   }
 
   test("Runtime bloom filter join: do not add bloom filter if dpp filter exists " +
-    "on the same column") {
+    "on the same column",
+    IgnoreComet("TODO: Support SubqueryBroadcastExec in Comet: #242")) {
     withSQLConf(SQLConf.RUNTIME_BLOOM_FILTER_APPLICATION_SIDE_SCAN_SIZE_THRESHOLD.key -> "3000",
       SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "2000") {
       assertDidNotRewriteWithBloomFilter("select * from bf5part join bf2 on " +
@@ -477,7 +478,8 @@ class InjectRuntimeFilterSuite extends QueryTest with SQLTestUtils with SharedSp
   }
 
   test("Runtime bloom filter join: add bloom filter if dpp filter exists on " +
-    "a different column") {
+    "a different column",
+    IgnoreComet("TODO: Support SubqueryBroadcastExec in Comet: #242")) {
     withSQLConf(SQLConf.RUNTIME_BLOOM_FILTER_APPLICATION_SIDE_SCAN_SIZE_THRESHOLD.key -> "3000",
       SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "2000") {
       assertRewroteWithBloomFilter("select * from bf5part join bf2 on " +
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/JoinHintSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/JoinHintSuite.scala
index 1792b4c32eb..1616e6f39bd 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/JoinHintSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/JoinHintSuite.scala
@@ -23,6 +23,7 @@ import org.apache.spark.sql.catalyst.optimizer.{BuildLeft, BuildRight, BuildSide
 import org.apache.spark.sql.catalyst.plans.PlanTest
 import org.apache.spark.sql.catalyst.plans.logical._
 import org.apache.spark.sql.catalyst.rules.RuleExecutor
+import org.apache.spark.sql.comet.{CometHashJoinExec, CometSortMergeJoinExec}
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper
 import org.apache.spark.sql.execution.joins._
 import org.apache.spark.sql.internal.SQLConf
@@ -362,6 +363,7 @@ class JoinHintSuite extends PlanTest with SharedSparkSession with AdaptiveSparkP
     val executedPlan = df.queryExecution.executedPlan
     val shuffleHashJoins = collect(executedPlan) {
       case s: ShuffledHashJoinExec => s
+      case c: CometHashJoinExec => c.originalPlan.asInstanceOf[ShuffledHashJoinExec]
     }
     assert(shuffleHashJoins.size == 1)
     assert(shuffleHashJoins.head.buildSide == buildSide)
@@ -371,6 +373,7 @@ class JoinHintSuite extends PlanTest with SharedSparkSession with AdaptiveSparkP
     val executedPlan = df.queryExecution.executedPlan
     val shuffleMergeJoins = collect(executedPlan) {
       case s: SortMergeJoinExec => s
+      case c: CometSortMergeJoinExec => c
     }
     assert(shuffleMergeJoins.size == 1)
   }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/JoinSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/JoinSuite.scala
index 7f062bfb899..0ed85486e80 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/JoinSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/JoinSuite.scala
@@ -30,7 +30,8 @@ import org.apache.spark.sql.catalyst.TableIdentifier
 import org.apache.spark.sql.catalyst.analysis.UnresolvedRelation
 import org.apache.spark.sql.catalyst.expressions.{Ascending, GenericRow, SortOrder}
 import org.apache.spark.sql.catalyst.plans.logical.Filter
-import org.apache.spark.sql.execution.{BinaryExecNode, FilterExec, ProjectExec, SortExec, SparkPlan, WholeStageCodegenExec}
+import org.apache.spark.sql.comet._
+import org.apache.spark.sql.execution.{BinaryExecNode, ColumnarToRowExec, FilterExec, InputAdapter, ProjectExec, SortExec, SparkPlan, WholeStageCodegenExec}
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper
 import org.apache.spark.sql.execution.exchange.{ShuffleExchangeExec, ShuffleExchangeLike}
 import org.apache.spark.sql.execution.joins._
@@ -740,7 +741,8 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
     }
   }
 
-  test("test SortMergeJoin (with spill)") {
+  test("test SortMergeJoin (with spill)",
+      IgnoreComet("TODO: Comet SMJ doesn't support spill yet")) {
     withSQLConf(SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "1",
       SQLConf.SORT_MERGE_JOIN_EXEC_BUFFER_IN_MEMORY_THRESHOLD.key -> "0",
       SQLConf.SORT_MERGE_JOIN_EXEC_BUFFER_SPILL_THRESHOLD.key -> "1") {
@@ -866,10 +868,12 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
       val physical = df.queryExecution.sparkPlan
       val physicalJoins = physical.collect {
         case j: SortMergeJoinExec => j
+        case j: CometSortMergeJoinExec => j.originalPlan.asInstanceOf[SortMergeJoinExec]
       }
       val executed = df.queryExecution.executedPlan
       val executedJoins = collect(executed) {
         case j: SortMergeJoinExec => j
+        case j: CometSortMergeJoinExec => j.originalPlan.asInstanceOf[SortMergeJoinExec]
       }
       // This only applies to the above tested queries, in which a child SortMergeJoin always
       // contains the SortOrder required by its parent SortMergeJoin. Thus, SortExec should never
@@ -1115,9 +1119,11 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
       val plan = df1.join(df2.hint("SHUFFLE_HASH"), $"k1" === $"k2", joinType)
         .groupBy($"k1").count()
         .queryExecution.executedPlan
-      assert(collect(plan) { case _: ShuffledHashJoinExec => true }.size === 1)
+      assert(collect(plan) {
+        case _: ShuffledHashJoinExec | _: CometHashJoinExec => true }.size === 1)
       // No extra shuffle before aggregate
-      assert(collect(plan) { case _: ShuffleExchangeExec => true }.size === 2)
+      assert(collect(plan) {
+        case _: ShuffleExchangeLike => true }.size === 2)
     })
   }
 
@@ -1134,10 +1140,11 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
         .join(df4.hint("SHUFFLE_MERGE"), $"k1" === $"k4", joinType)
         .queryExecution
         .executedPlan
-      assert(collect(plan) { case _: SortMergeJoinExec => true }.size === 2)
+      assert(collect(plan) {
+        case _: SortMergeJoinExec | _: CometSortMergeJoinExec => true }.size === 2)
       assert(collect(plan) { case _: BroadcastHashJoinExec => true }.size === 1)
       // No extra sort before last sort merge join
-      assert(collect(plan) { case _: SortExec => true }.size === 3)
+      assert(collect(plan) { case _: SortExec | _: CometSortExec => true }.size === 3)
     })
 
     // Test shuffled hash join
@@ -1147,10 +1154,13 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
         .join(df4.hint("SHUFFLE_MERGE"), $"k1" === $"k4", joinType)
         .queryExecution
         .executedPlan
-      assert(collect(plan) { case _: SortMergeJoinExec => true }.size === 2)
-      assert(collect(plan) { case _: ShuffledHashJoinExec => true }.size === 1)
+      assert(collect(plan) {
+        case _: SortMergeJoinExec | _: CometSortMergeJoinExec => true }.size === 2)
+      assert(collect(plan) {
+        case _: ShuffledHashJoinExec | _: CometHashJoinExec => true }.size === 1)
       // No extra sort before last sort merge join
-      assert(collect(plan) { case _: SortExec => true }.size === 3)
+      assert(collect(plan) {
+        case _: SortExec | _: CometSortExec => true }.size === 3)
     })
   }
 
@@ -1241,12 +1251,12 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
     inputDFs.foreach { case (df1, df2, joinExprs) =>
       val smjDF = df1.join(df2.hint("SHUFFLE_MERGE"), joinExprs, "full")
       assert(collect(smjDF.queryExecution.executedPlan) {
-        case _: SortMergeJoinExec => true }.size === 1)
+        case _: SortMergeJoinExec | _: CometSortMergeJoinExec => true }.size === 1)
       val smjResult = smjDF.collect()
 
       val shjDF = df1.join(df2.hint("SHUFFLE_HASH"), joinExprs, "full")
       assert(collect(shjDF.queryExecution.executedPlan) {
-        case _: ShuffledHashJoinExec => true }.size === 1)
+        case _: ShuffledHashJoinExec | _: CometHashJoinExec => true }.size === 1)
       // Same result between shuffled hash join and sort merge join
       checkAnswer(shjDF, smjResult)
     }
@@ -1282,18 +1292,26 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
       }
 
       // Test shuffled hash join
-      withSQLConf(SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "false") {
+      withSQLConf("spark.comet.enabled" -> "true",
+        SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "false") {
         val shjCodegenDF = df1.join(df2.hint("SHUFFLE_HASH"), $"k1" === $"k2", joinType)
         assert(shjCodegenDF.queryExecution.executedPlan.collect {
           case WholeStageCodegenExec(_ : ShuffledHashJoinExec) => true
           case WholeStageCodegenExec(ProjectExec(_, _ : ShuffledHashJoinExec)) => true
+          case WholeStageCodegenExec(ColumnarToRowExec(InputAdapter(_: CometHashJoinExec))) =>
+            true
+          case WholeStageCodegenExec(ColumnarToRowExec(
+            InputAdapter(CometProjectExec(_, _, _, _, _: CometHashJoinExec, _)))) => true
+          case _: CometHashJoinExec => true
         }.size === 1)
         checkAnswer(shjCodegenDF, Seq.empty)
 
         withSQLConf(SQLConf.WHOLESTAGE_CODEGEN_ENABLED.key -> "false") {
           val shjNonCodegenDF = df1.join(df2.hint("SHUFFLE_HASH"), $"k1" === $"k2", joinType)
           assert(shjNonCodegenDF.queryExecution.executedPlan.collect {
-            case _: ShuffledHashJoinExec => true }.size === 1)
+            case _: ShuffledHashJoinExec => true
+            case _: CometHashJoinExec => true
+          }.size === 1)
           checkAnswer(shjNonCodegenDF, Seq.empty)
         }
       }
@@ -1341,7 +1359,8 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
           val plan = sql(getAggQuery(selectExpr, joinType)).queryExecution.executedPlan
           assert(collect(plan) { case _: BroadcastNestedLoopJoinExec => true }.size === 1)
           // Have shuffle before aggregation
-          assert(collect(plan) { case _: ShuffleExchangeExec => true }.size === 1)
+          assert(collect(plan) {
+            case _: ShuffleExchangeLike => true }.size === 1)
       }
 
       def getJoinQuery(selectExpr: String, joinType: String): String = {
@@ -1370,9 +1389,12 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
           }
           val plan = sql(getJoinQuery(selectExpr, joinType)).queryExecution.executedPlan
           assert(collect(plan) { case _: BroadcastNestedLoopJoinExec => true }.size === 1)
-          assert(collect(plan) { case _: SortMergeJoinExec => true }.size === 3)
+          assert(collect(plan) {
+            case _: SortMergeJoinExec => true
+            case _: CometSortMergeJoinExec => true
+          }.size === 3)
           // No extra sort on left side before last sort merge join
-          assert(collect(plan) { case _: SortExec => true }.size === 5)
+          assert(collect(plan) { case _: SortExec | _: CometSortExec => true }.size === 5)
       }
 
       // Test output ordering is not preserved
@@ -1381,9 +1403,12 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
           val selectExpr = "/*+ BROADCAST(left_t) */ k1 as k0"
           val plan = sql(getJoinQuery(selectExpr, joinType)).queryExecution.executedPlan
           assert(collect(plan) { case _: BroadcastNestedLoopJoinExec => true }.size === 1)
-          assert(collect(plan) { case _: SortMergeJoinExec => true }.size === 3)
+          assert(collect(plan) {
+            case _: SortMergeJoinExec => true
+            case _: CometSortMergeJoinExec => true
+          }.size === 3)
           // Have sort on left side before last sort merge join
-          assert(collect(plan) { case _: SortExec => true }.size === 6)
+          assert(collect(plan) { case _: SortExec | _: CometSortExec => true }.size === 6)
       }
 
       // Test singe partition
@@ -1393,7 +1418,8 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
            |FROM range(0, 10, 1, 1) t1 FULL OUTER JOIN range(0, 10, 1, 1) t2
            |""".stripMargin)
       val plan = fullJoinDF.queryExecution.executedPlan
-      assert(collect(plan) { case _: ShuffleExchangeExec => true}.size == 1)
+      assert(collect(plan) {
+        case _: ShuffleExchangeLike => true}.size == 1)
       checkAnswer(fullJoinDF, Row(100))
     }
   }
@@ -1438,6 +1464,9 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
           Seq(semiJoinDF, antiJoinDF).foreach { df =>
             assert(collect(df.queryExecution.executedPlan) {
               case j: ShuffledHashJoinExec if j.ignoreDuplicatedKey == ignoreDuplicatedKey => true
+              case j: CometHashJoinExec
+                if j.originalPlan.asInstanceOf[ShuffledHashJoinExec].ignoreDuplicatedKey ==
+                  ignoreDuplicatedKey => true
             }.size == 1)
           }
       }
@@ -1482,14 +1511,20 @@ class JoinSuite extends QueryTest with SharedSparkSession with AdaptiveSparkPlan
 
   test("SPARK-43113: Full outer join with duplicate stream-side references in condition (SMJ)") {
     def check(plan: SparkPlan): Unit = {
-      assert(collect(plan) { case _: SortMergeJoinExec => true }.size === 1)
+      assert(collect(plan) {
+        case _: SortMergeJoinExec => true
+        case _: CometSortMergeJoinExec => true
+      }.size === 1)
     }
     dupStreamSideColTest("MERGE", check)
   }
 
   test("SPARK-43113: Full outer join with duplicate stream-side references in condition (SHJ)") {
     def check(plan: SparkPlan): Unit = {
-      assert(collect(plan) { case _: ShuffledHashJoinExec => true }.size === 1)
+      assert(collect(plan) {
+        case _: ShuffledHashJoinExec => true
+        case _: CometHashJoinExec => true
+      }.size === 1)
     }
     dupStreamSideColTest("SHUFFLE_HASH", check)
   }
@@ -1605,7 +1640,8 @@ class ThreadLeakInSortMergeJoinSuite
       sparkConf.set(SHUFFLE_SPILL_NUM_ELEMENTS_FORCE_SPILL_THRESHOLD, 20))
   }
 
-  test("SPARK-47146: thread leak when doing SortMergeJoin (with spill)") {
+  test("SPARK-47146: thread leak when doing SortMergeJoin (with spill)",
+    IgnoreComet("Comet SMJ doesn't spill yet")) {
 
     withSQLConf(
       SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "1") {
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/PlanStabilitySuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/PlanStabilitySuite.scala
index b5b34922694..a72403780c4 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/PlanStabilitySuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/PlanStabilitySuite.scala
@@ -69,7 +69,7 @@ import org.apache.spark.tags.ExtendedSQLTest
  * }}}
  */
 // scalastyle:on line.size.limit
-trait PlanStabilitySuite extends DisableAdaptiveExecutionSuite {
+trait PlanStabilitySuite extends DisableAdaptiveExecutionSuite with IgnoreCometSuite {
 
   protected val baseResourcePath = {
     // use the same way as `SQLQueryTestSuite` to get the resource path
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala
index 525d97e4998..843f0472c23 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala
@@ -1508,7 +1508,8 @@ class SQLQuerySuite extends QueryTest with SharedSparkSession with AdaptiveSpark
     checkAnswer(sql("select -0.001"), Row(BigDecimal("-0.001")))
   }
 
-  test("external sorting updates peak execution memory") {
+  test("external sorting updates peak execution memory",
+    IgnoreComet("TODO: native CometSort does not update peak execution memory")) {
     AccumulatorSuite.verifyPeakExecutionMemorySet(sparkContext, "external sort") {
       sql("SELECT * FROM testData2 ORDER BY a ASC, b ASC").collect()
     }
@@ -4429,7 +4430,8 @@ class SQLQuerySuite extends QueryTest with SharedSparkSession with AdaptiveSpark
   }
 
   test("SPARK-39166: Query context of binary arithmetic should be serialized to executors" +
-    " when WSCG is off") {
+    " when WSCG is off",
+    IgnoreComet("https://github.com/apache/datafusion-comet/issues/2215")) {
     withSQLConf(SQLConf.WHOLESTAGE_CODEGEN_ENABLED.key -> "false",
       SQLConf.ANSI_ENABLED.key -> "true") {
       withTable("t") {
@@ -4450,7 +4452,8 @@ class SQLQuerySuite extends QueryTest with SharedSparkSession with AdaptiveSpark
   }
 
   test("SPARK-39175: Query context of Cast should be serialized to executors" +
-    " when WSCG is off") {
+    " when WSCG is off",
+    IgnoreComet("https://github.com/apache/datafusion-comet/issues/2215")) {
     withSQLConf(SQLConf.WHOLESTAGE_CODEGEN_ENABLED.key -> "false",
       SQLConf.ANSI_ENABLED.key -> "true") {
       withTable("t") {
@@ -4467,14 +4470,19 @@ class SQLQuerySuite extends QueryTest with SharedSparkSession with AdaptiveSpark
           val msg = intercept[SparkException] {
             sql(query).collect()
           }.getMessage
-          assert(msg.contains(query))
+          if (!isCometEnabled) {
+            // Comet's error message does not include the original SQL query
+            // https://github.com/apache/datafusion-comet/issues/2215
+            assert(msg.contains(query))
+          }
         }
       }
     }
   }
 
   test("SPARK-39190,SPARK-39208,SPARK-39210: Query context of decimal overflow error should " +
-    "be serialized to executors when WSCG is off") {
+    "be serialized to executors when WSCG is off",
+    IgnoreComet("https://github.com/apache/datafusion-comet/issues/2215")) {
     withSQLConf(SQLConf.WHOLESTAGE_CODEGEN_ENABLED.key -> "false",
       SQLConf.ANSI_ENABLED.key -> "true") {
       withTable("t") {
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/SparkSessionExtensionSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/SparkSessionExtensionSuite.scala
index 48ad10992c5..51d1ee65422 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/SparkSessionExtensionSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/SparkSessionExtensionSuite.scala
@@ -221,6 +221,8 @@ class SparkSessionExtensionSuite extends SparkFunSuite with SQLHelper {
     withSession(extensions) { session =>
       session.conf.set(SQLConf.ADAPTIVE_EXECUTION_ENABLED, true)
       session.conf.set(SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key, "-1")
+      // https://github.com/apache/datafusion-comet/issues/1197
+      session.conf.set("spark.comet.enabled", false)
       assert(session.sessionState.columnarRules.contains(
         MyColumnarRule(PreRuleReplaceAddWithBrokenVersion(), MyPostRule())))
       import session.sqlContext.implicits._
@@ -279,6 +281,8 @@ class SparkSessionExtensionSuite extends SparkFunSuite with SQLHelper {
     }
     withSession(extensions) { session =>
       session.conf.set(SQLConf.ADAPTIVE_EXECUTION_ENABLED, enableAQE)
+      // https://github.com/apache/datafusion-comet/issues/1197
+      session.conf.set("spark.comet.enabled", false)
       assert(session.sessionState.columnarRules.contains(
         MyColumnarRule(PreRuleReplaceAddWithBrokenVersion(), MyPostRule())))
       import session.sqlContext.implicits._
@@ -317,6 +321,8 @@ class SparkSessionExtensionSuite extends SparkFunSuite with SQLHelper {
     val session = SparkSession.builder()
       .master("local[1]")
       .config(COLUMN_BATCH_SIZE.key, 2)
+      // https://github.com/apache/datafusion-comet/issues/1197
+      .config("spark.comet.enabled", false)
       .withExtensions { extensions =>
         extensions.injectColumnar(session =>
           MyColumnarRule(PreRuleReplaceAddWithBrokenVersion(), MyPostRule())) }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/StringFunctionsSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/StringFunctionsSuite.scala
index 18123a4d6ec..fbe4c766eee 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/StringFunctionsSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/StringFunctionsSuite.scala
@@ -17,6 +17,8 @@
 
 package org.apache.spark.sql
 
+import org.apache.comet.CometConf
+
 import org.apache.spark.{SPARK_DOC_ROOT, SparkRuntimeException}
 import org.apache.spark.sql.catalyst.expressions.Cast._
 import org.apache.spark.sql.catalyst.expressions.TryToNumber
@@ -133,29 +135,31 @@ class StringFunctionsSuite extends QueryTest with SharedSparkSession {
   }
 
   test("string regex_replace / regex_extract") {
-    val df = Seq(
-      ("100-200", "(\\d+)-(\\d+)", "300"),
-      ("100-200", "(\\d+)-(\\d+)", "400"),
-      ("100-200", "(\\d+)", "400")).toDF("a", "b", "c")
-
-    checkAnswer(
-      df.select(
-        regexp_replace($"a", "(\\d+)", "num"),
-        regexp_replace($"a", $"b", $"c"),
-        regexp_extract($"a", "(\\d+)-(\\d+)", 1)),
-      Row("num-num", "300", "100") :: Row("num-num", "400", "100") ::
-        Row("num-num", "400-400", "100") :: Nil)
+    withSQLConf(CometConf.getExprAllowIncompatConfigKey("regexp") -> "true") {
+      val df = Seq(
+        ("100-200", "(\\d+)-(\\d+)", "300"),
+        ("100-200", "(\\d+)-(\\d+)", "400"),
+        ("100-200", "(\\d+)", "400")).toDF("a", "b", "c")
 
-    // for testing the mutable state of the expression in code gen.
-    // This is a hack way to enable the codegen, thus the codegen is enable by default,
-    // it will still use the interpretProjection if projection followed by a LocalRelation,
-    // hence we add a filter operator.
-    // See the optimizer rule `ConvertToLocalRelation`
-    checkAnswer(
-      df.filter("isnotnull(a)").selectExpr(
-        "regexp_replace(a, b, c)",
-        "regexp_extract(a, b, 1)"),
-      Row("300", "100") :: Row("400", "100") :: Row("400-400", "100") :: Nil)
+      checkAnswer(
+        df.select(
+          regexp_replace($"a", "(\\d+)", "num"),
+          regexp_replace($"a", $"b", $"c"),
+          regexp_extract($"a", "(\\d+)-(\\d+)", 1)),
+        Row("num-num", "300", "100") :: Row("num-num", "400", "100") ::
+          Row("num-num", "400-400", "100") :: Nil)
+
+      // for testing the mutable state of the expression in code gen.
+      // This is a hack way to enable the codegen, thus the codegen is enable by default,
+      // it will still use the interpretProjection if projection followed by a LocalRelation,
+      // hence we add a filter operator.
+      // See the optimizer rule `ConvertToLocalRelation`
+      checkAnswer(
+        df.filter("isnotnull(a)").selectExpr(
+          "regexp_replace(a, b, c)",
+          "regexp_extract(a, b, 1)"),
+        Row("300", "100") :: Row("400", "100") :: Row("400-400", "100") :: Nil)
+    }
   }
 
   test("non-matching optional group") {
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/SubquerySuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/SubquerySuite.scala
index 75eabcb96f2..7c0bbd71551 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/SubquerySuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/SubquerySuite.scala
@@ -21,10 +21,11 @@ import scala.collection.mutable.ArrayBuffer
 
 import org.apache.spark.sql.catalyst.expressions.SubqueryExpression
 import org.apache.spark.sql.catalyst.plans.logical.{Aggregate, Join, LogicalPlan, Project, Sort, Union}
+import org.apache.spark.sql.comet.CometScanExec
 import org.apache.spark.sql.execution._
 import org.apache.spark.sql.execution.adaptive.{AdaptiveSparkPlanHelper, DisableAdaptiveExecution}
 import org.apache.spark.sql.execution.datasources.FileScanRDD
-import org.apache.spark.sql.execution.exchange.ShuffleExchangeExec
+import org.apache.spark.sql.execution.exchange.ShuffleExchangeLike
 import org.apache.spark.sql.execution.joins.{BaseJoinExec, BroadcastHashJoinExec, BroadcastNestedLoopJoinExec}
 import org.apache.spark.sql.internal.SQLConf
 import org.apache.spark.sql.test.SharedSparkSession
@@ -1543,6 +1544,12 @@ class SubquerySuite extends QueryTest
             fs.inputRDDs().forall(
               _.asInstanceOf[FileScanRDD].filePartitions.forall(
                 _.files.forall(_.urlEncodedPath.contains("p=0"))))
+        case WholeStageCodegenExec(ColumnarToRowExec(InputAdapter(
+        fs @ CometScanExec(_, _, _, _, partitionFilters, _, _, _, _, _, _)))) =>
+          partitionFilters.exists(ExecSubqueryExpression.hasSubquery) &&
+            fs.inputRDDs().forall(
+              _.asInstanceOf[FileScanRDD].filePartitions.forall(
+                _.files.forall(_.urlEncodedPath.contains("p=0"))))
         case _ => false
       })
     }
@@ -2108,7 +2115,7 @@ class SubquerySuite extends QueryTest
 
       df.collect()
       val exchanges = collect(df.queryExecution.executedPlan) {
-        case s: ShuffleExchangeExec => s
+        case s: ShuffleExchangeLike => s
       }
       assert(exchanges.size === 1)
     }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/connector/DataSourceV2Suite.scala b/sql/core/src/test/scala/org/apache/spark/sql/connector/DataSourceV2Suite.scala
index 02990a7a40d..bddf5e1ccc2 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/connector/DataSourceV2Suite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/connector/DataSourceV2Suite.scala
@@ -24,6 +24,7 @@ import test.org.apache.spark.sql.connector._
 
 import org.apache.spark.sql.{AnalysisException, DataFrame, QueryTest, Row}
 import org.apache.spark.sql.catalyst.InternalRow
+import org.apache.spark.sql.comet.CometSortExec
 import org.apache.spark.sql.connector.catalog.{PartitionInternalRow, SupportsRead, Table, TableCapability, TableProvider}
 import org.apache.spark.sql.connector.catalog.TableCapability._
 import org.apache.spark.sql.connector.expressions.{Expression, FieldReference, Literal, NamedReference, NullOrdering, SortDirection, SortOrder, Transform}
@@ -33,7 +34,7 @@ import org.apache.spark.sql.connector.read.partitioning.{KeyGroupedPartitioning,
 import org.apache.spark.sql.execution.SortExec
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper
 import org.apache.spark.sql.execution.datasources.v2.{BatchScanExec, DataSourceV2Relation, DataSourceV2ScanRelation}
-import org.apache.spark.sql.execution.exchange.{Exchange, ShuffleExchangeExec}
+import org.apache.spark.sql.execution.exchange.{Exchange, ShuffleExchangeExec, ShuffleExchangeLike}
 import org.apache.spark.sql.execution.vectorized.OnHeapColumnVector
 import org.apache.spark.sql.expressions.Window
 import org.apache.spark.sql.functions._
@@ -268,13 +269,13 @@ class DataSourceV2Suite extends QueryTest with SharedSparkSession with AdaptiveS
           val groupByColJ = df.groupBy($"j").agg(sum($"i"))
           checkAnswer(groupByColJ, Seq(Row(2, 8), Row(4, 2), Row(6, 5)))
           assert(collectFirst(groupByColJ.queryExecution.executedPlan) {
-            case e: ShuffleExchangeExec => e
+            case e: ShuffleExchangeLike => e
           }.isDefined)
 
           val groupByIPlusJ = df.groupBy($"i" + $"j").agg(count("*"))
           checkAnswer(groupByIPlusJ, Seq(Row(5, 2), Row(6, 2), Row(8, 1), Row(9, 1)))
           assert(collectFirst(groupByIPlusJ.queryExecution.executedPlan) {
-            case e: ShuffleExchangeExec => e
+            case e: ShuffleExchangeLike => e
           }.isDefined)
         }
       }
@@ -334,10 +335,11 @@ class DataSourceV2Suite extends QueryTest with SharedSparkSession with AdaptiveS
 
                 val (shuffleExpected, sortExpected) = groupByExpects
                 assert(collectFirst(groupBy.queryExecution.executedPlan) {
-                  case e: ShuffleExchangeExec => e
+                  case e: ShuffleExchangeLike => e
                 }.isDefined === shuffleExpected)
                 assert(collectFirst(groupBy.queryExecution.executedPlan) {
                   case e: SortExec => e
+                  case c: CometSortExec => c
                 }.isDefined === sortExpected)
               }
 
@@ -352,10 +354,11 @@ class DataSourceV2Suite extends QueryTest with SharedSparkSession with AdaptiveS
 
                 val (shuffleExpected, sortExpected) = windowFuncExpects
                 assert(collectFirst(windowPartByColIOrderByColJ.queryExecution.executedPlan) {
-                  case e: ShuffleExchangeExec => e
+                  case e: ShuffleExchangeLike => e
                 }.isDefined === shuffleExpected)
                 assert(collectFirst(windowPartByColIOrderByColJ.queryExecution.executedPlan) {
                   case e: SortExec => e
+                  case c: CometSortExec => c
                 }.isDefined === sortExpected)
               }
             }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/connector/FileDataSourceV2FallBackSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/connector/FileDataSourceV2FallBackSuite.scala
index cfc8b2cc845..c4be7eb3731 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/connector/FileDataSourceV2FallBackSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/connector/FileDataSourceV2FallBackSuite.scala
@@ -21,6 +21,7 @@ import scala.collection.mutable.ArrayBuffer
 import org.apache.spark.SparkConf
 import org.apache.spark.sql.{AnalysisException, QueryTest}
 import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan
+import org.apache.spark.sql.comet.{CometNativeScanExec, CometScanExec}
 import org.apache.spark.sql.connector.catalog.{SupportsRead, SupportsWrite, Table, TableCapability}
 import org.apache.spark.sql.connector.read.ScanBuilder
 import org.apache.spark.sql.connector.write.{LogicalWriteInfo, WriteBuilder}
@@ -184,7 +185,11 @@ class FileDataSourceV2FallBackSuite extends QueryTest with SharedSparkSession {
             val df = spark.read.format(format).load(path.getCanonicalPath)
             checkAnswer(df, inputData.toDF())
             assert(
-              df.queryExecution.executedPlan.exists(_.isInstanceOf[FileSourceScanExec]))
+              df.queryExecution.executedPlan.exists {
+                case _: FileSourceScanExec | _: CometScanExec | _: CometNativeScanExec => true
+                case _ => false
+              }
+            )
           }
         } finally {
           spark.listenerManager.unregister(listener)
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/connector/KeyGroupedPartitioningSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/connector/KeyGroupedPartitioningSuite.scala
index cf76f6ca32c..f454128af06 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/connector/KeyGroupedPartitioningSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/connector/KeyGroupedPartitioningSuite.scala
@@ -22,6 +22,7 @@ import org.apache.spark.sql.{DataFrame, Row}
 import org.apache.spark.sql.catalyst.InternalRow
 import org.apache.spark.sql.catalyst.expressions.{Literal, TransformExpression}
 import org.apache.spark.sql.catalyst.plans.physical
+import org.apache.spark.sql.comet.CometSortMergeJoinExec
 import org.apache.spark.sql.connector.catalog.Identifier
 import org.apache.spark.sql.connector.catalog.InMemoryTableCatalog
 import org.apache.spark.sql.connector.catalog.functions._
@@ -31,7 +32,7 @@ import org.apache.spark.sql.connector.expressions.Expressions._
 import org.apache.spark.sql.execution.SparkPlan
 import org.apache.spark.sql.execution.datasources.v2.BatchScanExec
 import org.apache.spark.sql.execution.datasources.v2.DataSourceV2ScanRelation
-import org.apache.spark.sql.execution.exchange.ShuffleExchangeExec
+import org.apache.spark.sql.execution.exchange.ShuffleExchangeLike
 import org.apache.spark.sql.execution.joins.SortMergeJoinExec
 import org.apache.spark.sql.internal.SQLConf
 import org.apache.spark.sql.internal.SQLConf._
@@ -279,13 +280,14 @@ class KeyGroupedPartitioningSuite extends DistributionAndOrderingSuiteBase {
         Row("bbb", 20, 250.0), Row("bbb", 20, 350.0), Row("ccc", 30, 400.50)))
   }
 
-  private def collectShuffles(plan: SparkPlan): Seq[ShuffleExchangeExec] = {
+  private def collectShuffles(plan: SparkPlan): Seq[ShuffleExchangeLike] = {
     // here we skip collecting shuffle operators that are not associated with SMJ
     collect(plan) {
       case s: SortMergeJoinExec => s
+      case c: CometSortMergeJoinExec => c.originalPlan
     }.flatMap(smj =>
       collect(smj) {
-        case s: ShuffleExchangeExec => s
+        case s: ShuffleExchangeLike => s
       })
   }
 
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/errors/QueryExecutionErrorsSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/errors/QueryExecutionErrorsSuite.scala
index c0ec8a58bd5..4e8bc6ed3c5 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/errors/QueryExecutionErrorsSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/errors/QueryExecutionErrorsSuite.scala
@@ -27,7 +27,7 @@ import org.apache.hadoop.fs.permission.FsPermission
 import org.mockito.Mockito.{mock, spy, when}
 
 import org.apache.spark._
-import org.apache.spark.sql.{AnalysisException, DataFrame, Dataset, QueryTest, Row, SaveMode}
+import org.apache.spark.sql.{AnalysisException, DataFrame, Dataset, IgnoreComet, QueryTest, Row, SaveMode}
 import org.apache.spark.sql.catalyst.expressions.CodegenObjectFactoryMode._
 import org.apache.spark.sql.catalyst.util.BadRecordException
 import org.apache.spark.sql.execution.datasources.jdbc.{DriverRegistry, JDBCOptions}
@@ -248,7 +248,8 @@ class QueryExecutionErrorsSuite
   }
 
   test("INCONSISTENT_BEHAVIOR_CROSS_VERSION: " +
-    "compatibility with Spark 2.4/3.2 in reading/writing dates") {
+    "compatibility with Spark 2.4/3.2 in reading/writing dates",
+    IgnoreComet("Comet doesn't completely support datetime rebase mode yet")) {
 
     // Fail to read ancient datetime values.
     withSQLConf(SQLConf.PARQUET_REBASE_MODE_IN_READ.key -> EXCEPTION.toString) {
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/DataSourceScanExecRedactionSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/DataSourceScanExecRedactionSuite.scala
index 418ca3430bb..eb8267192f8 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/DataSourceScanExecRedactionSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/DataSourceScanExecRedactionSuite.scala
@@ -23,7 +23,7 @@ import scala.util.Random
 import org.apache.hadoop.fs.Path
 
 import org.apache.spark.SparkConf
-import org.apache.spark.sql.{DataFrame, QueryTest}
+import org.apache.spark.sql.{DataFrame, IgnoreComet, QueryTest}
 import org.apache.spark.sql.execution.datasources.v2.BatchScanExec
 import org.apache.spark.sql.execution.datasources.v2.orc.OrcScan
 import org.apache.spark.sql.internal.SQLConf
@@ -195,7 +195,7 @@ class DataSourceV2ScanExecRedactionSuite extends DataSourceScanRedactionTest {
     }
   }
 
-  test("FileScan description") {
+  test("FileScan description", IgnoreComet("Comet doesn't use BatchScan")) {
     Seq("json", "orc", "parquet").foreach { format =>
       withTempPath { path =>
         val dir = path.getCanonicalPath
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/LogicalPlanTagInSparkPlanSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/LogicalPlanTagInSparkPlanSuite.scala
index 743ec41dbe7..9f30d6c8e04 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/LogicalPlanTagInSparkPlanSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/LogicalPlanTagInSparkPlanSuite.scala
@@ -53,6 +53,10 @@ class LogicalPlanTagInSparkPlanSuite extends TPCDSQuerySuite with DisableAdaptiv
     case ColumnarToRowExec(i: InputAdapter) => isScanPlanTree(i.child)
     case p: ProjectExec => isScanPlanTree(p.child)
     case f: FilterExec => isScanPlanTree(f.child)
+    // Comet produces scan plan tree like:
+    // ColumnarToRow
+    //  +- ReusedExchange
+    case _: ReusedExchangeExec => false
     case _: LeafExecNode => true
     case _ => false
   }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/PlannerSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/PlannerSuite.scala
index 4b3d3a4b805..56e1e0e6f16 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/PlannerSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/PlannerSuite.scala
@@ -18,7 +18,7 @@
 package org.apache.spark.sql.execution
 
 import org.apache.spark.rdd.RDD
-import org.apache.spark.sql.{execution, DataFrame, Row}
+import org.apache.spark.sql.{execution, DataFrame, IgnoreCometSuite, Row}
 import org.apache.spark.sql.catalyst.InternalRow
 import org.apache.spark.sql.catalyst.expressions._
 import org.apache.spark.sql.catalyst.plans._
@@ -35,7 +35,9 @@ import org.apache.spark.sql.internal.SQLConf
 import org.apache.spark.sql.test.SharedSparkSession
 import org.apache.spark.sql.types._
 
-class PlannerSuite extends SharedSparkSession with AdaptiveSparkPlanHelper {
+// Ignore this suite when Comet is enabled. This suite tests the Spark planner and Comet planner
+// comes out with too many difference. Simply ignoring this suite for now.
+class PlannerSuite extends SharedSparkSession with AdaptiveSparkPlanHelper with IgnoreCometSuite {
   import testImplicits._
 
   setupTestData()
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/RemoveRedundantProjectsSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/RemoveRedundantProjectsSuite.scala
index 9e9d717db3b..ec73082f458 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/RemoveRedundantProjectsSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/RemoveRedundantProjectsSuite.scala
@@ -17,7 +17,10 @@
 
 package org.apache.spark.sql.execution
 
-import org.apache.spark.sql.{DataFrame, QueryTest, Row}
+import org.apache.comet.CometConf
+
+import org.apache.spark.sql.{DataFrame, IgnoreComet, QueryTest, Row}
+import org.apache.spark.sql.comet.CometProjectExec
 import org.apache.spark.sql.connector.SimpleWritableDataSource
 import org.apache.spark.sql.execution.adaptive.{AdaptiveSparkPlanHelper, DisableAdaptiveExecutionSuite, EnableAdaptiveExecutionSuite}
 import org.apache.spark.sql.internal.SQLConf
@@ -34,7 +37,10 @@ abstract class RemoveRedundantProjectsSuiteBase
   private def assertProjectExecCount(df: DataFrame, expected: Int): Unit = {
     withClue(df.queryExecution) {
       val plan = df.queryExecution.executedPlan
-      val actual = collectWithSubqueries(plan) { case p: ProjectExec => p }.size
+      val actual = collectWithSubqueries(plan) {
+        case p: ProjectExec => p
+        case p: CometProjectExec => p
+      }.size
       assert(actual == expected)
     }
   }
@@ -112,7 +118,8 @@ abstract class RemoveRedundantProjectsSuiteBase
     assertProjectExec(query, 1, 3)
   }
 
-  test("join with ordering requirement") {
+  test("join with ordering requirement",
+    IgnoreComet("TODO: Support SubqueryBroadcastExec in Comet: #242")) {
     val query = "select * from (select key, a, c, b from testView) as t1 join " +
       "(select key, a, b, c from testView) as t2 on t1.key = t2.key where t2.a > 50"
     assertProjectExec(query, 2, 2)
@@ -134,12 +141,21 @@ abstract class RemoveRedundantProjectsSuiteBase
       val df = data.selectExpr("a", "b", "key", "explode(array(key, a, b)) as d").filter("d > 0")
       df.collect()
       val plan = df.queryExecution.executedPlan
-      val numProjects = collectWithSubqueries(plan) { case p: ProjectExec => p }.length
+      val numProjects = collectWithSubqueries(plan) {
+        case p: ProjectExec => p
+        case p: CometProjectExec => p
+      }.length
+
+      // Comet-specific change to get original Spark plan before applying
+      // a transformation to add a new ProjectExec
+      var sparkPlan: SparkPlan = null
+      withSQLConf(CometConf.COMET_EXEC_ENABLED.key -> "false") {
+        val df = data.selectExpr("a", "b", "key", "explode(array(key, a, b)) as d").filter("d > 0")
+        df.collect()
+        sparkPlan = df.queryExecution.executedPlan
+      }
 
-      // Create a new plan that reverse the GenerateExec output and add a new ProjectExec between
-      // GenerateExec and its child. This is to test if the ProjectExec is removed, the output of
-      // the query will be incorrect.
-      val newPlan = stripAQEPlan(plan) transform {
+      val newPlan = stripAQEPlan(sparkPlan) transform {
         case g @ GenerateExec(_, requiredChildOutput, _, _, child) =>
           g.copy(requiredChildOutput = requiredChildOutput.reverse,
             child = ProjectExec(requiredChildOutput.reverse, child))
@@ -151,6 +167,7 @@ abstract class RemoveRedundantProjectsSuiteBase
       // The manually added ProjectExec node shouldn't be removed.
       assert(collectWithSubqueries(newExecutedPlan) {
         case p: ProjectExec => p
+        case p: CometProjectExec => p
       }.size == numProjects + 1)
 
       // Check the original plan's output and the new plan's output are the same.
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/RemoveRedundantSortsSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/RemoveRedundantSortsSuite.scala
index 30ce940b032..0d3f6c6c934 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/RemoveRedundantSortsSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/RemoveRedundantSortsSuite.scala
@@ -19,6 +19,7 @@ package org.apache.spark.sql.execution
 
 import org.apache.spark.sql.{DataFrame, QueryTest}
 import org.apache.spark.sql.catalyst.plans.physical.{RangePartitioning, UnknownPartitioning}
+import org.apache.spark.sql.comet.CometSortExec
 import org.apache.spark.sql.execution.adaptive.{AdaptiveSparkPlanHelper, DisableAdaptiveExecutionSuite, EnableAdaptiveExecutionSuite}
 import org.apache.spark.sql.execution.joins.ShuffledJoin
 import org.apache.spark.sql.internal.SQLConf
@@ -33,7 +34,7 @@ abstract class RemoveRedundantSortsSuiteBase
 
   private def checkNumSorts(df: DataFrame, count: Int): Unit = {
     val plan = df.queryExecution.executedPlan
-    assert(collectWithSubqueries(plan) { case s: SortExec => s }.length == count)
+    assert(collectWithSubqueries(plan) { case _: SortExec | _: CometSortExec => 1 }.length == count)
   }
 
   private def checkSorts(query: String, enabledCount: Int, disabledCount: Int): Unit = {
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/ReplaceHashWithSortAggSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/ReplaceHashWithSortAggSuite.scala
index 47679ed7865..9ffbaecb98e 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/ReplaceHashWithSortAggSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/ReplaceHashWithSortAggSuite.scala
@@ -18,6 +18,7 @@
 package org.apache.spark.sql.execution
 
 import org.apache.spark.sql.{DataFrame, QueryTest}
+import org.apache.spark.sql.comet.CometHashAggregateExec
 import org.apache.spark.sql.execution.adaptive.{AdaptiveSparkPlanHelper, DisableAdaptiveExecutionSuite, EnableAdaptiveExecutionSuite}
 import org.apache.spark.sql.execution.aggregate.{HashAggregateExec, ObjectHashAggregateExec, SortAggregateExec}
 import org.apache.spark.sql.internal.SQLConf
@@ -31,7 +32,7 @@ abstract class ReplaceHashWithSortAggSuiteBase
   private def checkNumAggs(df: DataFrame, hashAggCount: Int, sortAggCount: Int): Unit = {
     val plan = df.queryExecution.executedPlan
     assert(collectWithSubqueries(plan) {
-      case s @ (_: HashAggregateExec | _: ObjectHashAggregateExec) => s
+      case s @ (_: HashAggregateExec | _: ObjectHashAggregateExec | _: CometHashAggregateExec ) => s
     }.length == hashAggCount)
     assert(collectWithSubqueries(plan) { case s: SortAggregateExec => s }.length == sortAggCount)
   }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/SQLWindowFunctionSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/SQLWindowFunctionSuite.scala
index eec396b2e39..bf3f1c769d6 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/SQLWindowFunctionSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/SQLWindowFunctionSuite.scala
@@ -18,7 +18,7 @@
 package org.apache.spark.sql.execution
 
 import org.apache.spark.TestUtils.assertSpilled
-import org.apache.spark.sql.{AnalysisException, QueryTest, Row}
+import org.apache.spark.sql.{AnalysisException, IgnoreComet, QueryTest, Row}
 import org.apache.spark.sql.internal.SQLConf.{WINDOW_EXEC_BUFFER_IN_MEMORY_THRESHOLD, WINDOW_EXEC_BUFFER_SPILL_THRESHOLD}
 import org.apache.spark.sql.test.SharedSparkSession
 
@@ -470,7 +470,7 @@ class SQLWindowFunctionSuite extends QueryTest with SharedSparkSession {
       Row(1, 3, null) :: Row(2, null, 4) :: Nil)
   }
 
-  test("test with low buffer spill threshold") {
+  test("test with low buffer spill threshold", IgnoreComet("Comet does not support spilling")) {
     val nums = sparkContext.parallelize(1 to 10).map(x => (x, x % 2)).toDF("x", "y")
     nums.createOrReplaceTempView("nums")
 
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/SparkPlanSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/SparkPlanSuite.scala
index b14f4a405f6..90bed10eca9 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/SparkPlanSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/SparkPlanSuite.scala
@@ -23,6 +23,7 @@ import org.apache.spark.sql.QueryTest
 import org.apache.spark.sql.catalyst.InternalRow
 import org.apache.spark.sql.catalyst.expressions.{Attribute, AttributeReference}
 import org.apache.spark.sql.catalyst.plans.logical.Deduplicate
+import org.apache.spark.sql.comet.{CometColumnarToRowExec, CometNativeColumnarToRowExec}
 import org.apache.spark.sql.execution.datasources.v2.BatchScanExec
 import org.apache.spark.sql.internal.SQLConf
 import org.apache.spark.sql.test.SharedSparkSession
@@ -131,7 +132,11 @@ class SparkPlanSuite extends QueryTest with SharedSparkSession {
         spark.range(1).write.parquet(path.getAbsolutePath)
         val df = spark.read.parquet(path.getAbsolutePath)
         val columnarToRowExec =
-          df.queryExecution.executedPlan.collectFirst { case p: ColumnarToRowExec => p }.get
+          df.queryExecution.executedPlan.collectFirst {
+            case p: ColumnarToRowExec => p
+            case p: CometColumnarToRowExec => p
+            case p: CometNativeColumnarToRowExec => p
+          }.get
         try {
           spark.range(1).foreach { _ =>
             columnarToRowExec.canonicalized
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/WholeStageCodegenSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/WholeStageCodegenSuite.scala
index ac710c32296..2854b433dd3 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/WholeStageCodegenSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/WholeStageCodegenSuite.scala
@@ -17,7 +17,7 @@
 
 package org.apache.spark.sql.execution
 
-import org.apache.spark.sql.{Dataset, QueryTest, Row, SaveMode}
+import org.apache.spark.sql.{Dataset, IgnoreCometSuite, QueryTest, Row, SaveMode}
 import org.apache.spark.sql.catalyst.expressions.codegen.{ByteCodeStats, CodeAndComment, CodeGenerator}
 import org.apache.spark.sql.execution.adaptive.DisableAdaptiveExecutionSuite
 import org.apache.spark.sql.execution.aggregate.{HashAggregateExec, SortAggregateExec}
@@ -29,7 +29,7 @@ import org.apache.spark.sql.test.SharedSparkSession
 import org.apache.spark.sql.types.{IntegerType, StringType, StructType}
 
 // Disable AQE because the WholeStageCodegenExec is added when running QueryStageExec
-class WholeStageCodegenSuite extends QueryTest with SharedSparkSession
+class WholeStageCodegenSuite extends QueryTest with SharedSparkSession with IgnoreCometSuite
   with DisableAdaptiveExecutionSuite {
 
   import testImplicits._
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/adaptive/AdaptiveQueryExecSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/adaptive/AdaptiveQueryExecSuite.scala
index 593bd7bb4ba..32af28b0238 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/adaptive/AdaptiveQueryExecSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/adaptive/AdaptiveQueryExecSuite.scala
@@ -26,9 +26,11 @@ import org.scalatest.time.SpanSugar._
 
 import org.apache.spark.SparkException
 import org.apache.spark.scheduler.{SparkListener, SparkListenerEvent, SparkListenerJobStart}
-import org.apache.spark.sql.{Dataset, QueryTest, Row, SparkSession, Strategy}
+import org.apache.spark.sql.{Dataset, IgnoreComet, QueryTest, Row, SparkSession, Strategy}
 import org.apache.spark.sql.catalyst.optimizer.{BuildLeft, BuildRight}
 import org.apache.spark.sql.catalyst.plans.logical.{Aggregate, LogicalPlan}
+import org.apache.spark.sql.comet._
+import org.apache.spark.sql.comet.execution.shuffle.CometShuffleExchangeExec
 import org.apache.spark.sql.execution.{CollectLimitExec, LocalTableScanExec, PartialReducerPartitionSpec, QueryExecution, ReusedSubqueryExec, ShuffledRowRDD, SortExec, SparkPlan, SparkPlanInfo, UnionExec}
 import org.apache.spark.sql.execution.aggregate.BaseAggregateExec
 import org.apache.spark.sql.execution.command.DataWritingCommandExec
@@ -104,6 +106,7 @@ class AdaptiveQueryExecSuite
   private def findTopLevelBroadcastHashJoin(plan: SparkPlan): Seq[BroadcastHashJoinExec] = {
     collect(plan) {
       case j: BroadcastHashJoinExec => j
+      case j: CometBroadcastHashJoinExec => j.originalPlan.asInstanceOf[BroadcastHashJoinExec]
     }
   }
 
@@ -116,30 +119,39 @@ class AdaptiveQueryExecSuite
   private def findTopLevelSortMergeJoin(plan: SparkPlan): Seq[SortMergeJoinExec] = {
     collect(plan) {
       case j: SortMergeJoinExec => j
+      case j: CometSortMergeJoinExec =>
+        assert(j.originalPlan.isInstanceOf[SortMergeJoinExec])
+        j.originalPlan.asInstanceOf[SortMergeJoinExec]
     }
   }
 
   private def findTopLevelShuffledHashJoin(plan: SparkPlan): Seq[ShuffledHashJoinExec] = {
     collect(plan) {
       case j: ShuffledHashJoinExec => j
+      case j: CometHashJoinExec => j.originalPlan.asInstanceOf[ShuffledHashJoinExec]
     }
   }
 
   private def findTopLevelBaseJoin(plan: SparkPlan): Seq[BaseJoinExec] = {
     collect(plan) {
       case j: BaseJoinExec => j
+      case c: CometHashJoinExec => c.originalPlan.asInstanceOf[BaseJoinExec]
+      case c: CometSortMergeJoinExec => c.originalPlan.asInstanceOf[BaseJoinExec]
+      case c: CometBroadcastHashJoinExec => c.originalPlan.asInstanceOf[BaseJoinExec]
     }
   }
 
   private def findTopLevelSort(plan: SparkPlan): Seq[SortExec] = {
     collect(plan) {
       case s: SortExec => s
+      case s: CometSortExec => s.originalPlan.asInstanceOf[SortExec]
     }
   }
 
   private def findTopLevelAggregate(plan: SparkPlan): Seq[BaseAggregateExec] = {
     collect(plan) {
       case agg: BaseAggregateExec => agg
+      case agg: CometHashAggregateExec => agg.originalPlan.asInstanceOf[BaseAggregateExec]
     }
   }
 
@@ -176,6 +188,7 @@ class AdaptiveQueryExecSuite
       val parts = rdd.partitions
       assert(parts.forall(rdd.preferredLocations(_).nonEmpty))
     }
+
     assert(numShuffles === (numLocalReads.length + numShufflesWithoutLocalRead))
   }
 
@@ -184,7 +197,7 @@ class AdaptiveQueryExecSuite
     val plan = df.queryExecution.executedPlan
     assert(plan.isInstanceOf[AdaptiveSparkPlanExec])
     val shuffle = plan.asInstanceOf[AdaptiveSparkPlanExec].executedPlan.collect {
-      case s: ShuffleExchangeExec => s
+      case s: ShuffleExchangeLike => s
     }
     assert(shuffle.size == 1)
     assert(shuffle(0).outputPartitioning.numPartitions == numPartition)
@@ -200,7 +213,8 @@ class AdaptiveQueryExecSuite
       assert(smj.size == 1)
       val bhj = findTopLevelBroadcastHashJoin(adaptivePlan)
       assert(bhj.size == 1)
-      checkNumLocalShuffleReads(adaptivePlan)
+      // Comet shuffle changes shuffle metrics
+      // checkNumLocalShuffleReads(adaptivePlan)
     }
   }
 
@@ -227,7 +241,8 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("Reuse the parallelism of coalesced shuffle in local shuffle read") {
+  test("Reuse the parallelism of coalesced shuffle in local shuffle read",
+      IgnoreComet("Comet shuffle changes shuffle partition size")) {
     withSQLConf(
       SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
       SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "80",
@@ -259,7 +274,8 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("Reuse the default parallelism in local shuffle read") {
+  test("Reuse the default parallelism in local shuffle read",
+      IgnoreComet("Comet shuffle changes shuffle partition size")) {
     withSQLConf(
       SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
       SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "80",
@@ -273,7 +289,8 @@ class AdaptiveQueryExecSuite
       val localReads = collect(adaptivePlan) {
         case read: AQEShuffleReadExec if read.isLocalRead => read
       }
-      assert(localReads.length == 2)
+      // Comet shuffle changes shuffle metrics
+      assert(localReads.length == 1)
       val localShuffleRDD0 = localReads(0).execute().asInstanceOf[ShuffledRowRDD]
       val localShuffleRDD1 = localReads(1).execute().asInstanceOf[ShuffledRowRDD]
       // the final parallelism is math.max(1, numReduces / numMappers): math.max(1, 5/2) = 2
@@ -298,7 +315,9 @@ class AdaptiveQueryExecSuite
           .groupBy($"a").count()
         checkAnswer(testDf, Seq())
         val plan = testDf.queryExecution.executedPlan
-        assert(find(plan)(_.isInstanceOf[SortMergeJoinExec]).isDefined)
+        assert(find(plan) { case p =>
+          p.isInstanceOf[SortMergeJoinExec] || p.isInstanceOf[CometSortMergeJoinExec]
+        }.isDefined)
         val coalescedReads = collect(plan) {
           case r: AQEShuffleReadExec => r
         }
@@ -312,7 +331,9 @@ class AdaptiveQueryExecSuite
           .groupBy($"a").count()
         checkAnswer(testDf, Seq())
         val plan = testDf.queryExecution.executedPlan
-        assert(find(plan)(_.isInstanceOf[BroadcastHashJoinExec]).isDefined)
+        assert(find(plan) { case p =>
+          p.isInstanceOf[BroadcastHashJoinExec] || p.isInstanceOf[CometBroadcastHashJoinExec]
+        }.isDefined)
         val coalescedReads = collect(plan) {
           case r: AQEShuffleReadExec => r
         }
@@ -322,7 +343,7 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("Scalar subquery") {
+  test("Scalar subquery", IgnoreComet("Comet shuffle changes shuffle metrics")) {
     withSQLConf(
         SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
         SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "80") {
@@ -337,7 +358,7 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("Scalar subquery in later stages") {
+  test("Scalar subquery in later stages", IgnoreComet("Comet shuffle changes shuffle metrics")) {
     withSQLConf(
         SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
         SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "80") {
@@ -353,7 +374,7 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("multiple joins") {
+  test("multiple joins", IgnoreComet("Comet shuffle changes shuffle metrics")) {
     withSQLConf(
         SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
         SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "80") {
@@ -398,7 +419,7 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("multiple joins with aggregate") {
+  test("multiple joins with aggregate", IgnoreComet("Comet shuffle changes shuffle metrics")) {
     withSQLConf(
         SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
         SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "80") {
@@ -443,7 +464,7 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("multiple joins with aggregate 2") {
+  test("multiple joins with aggregate 2", IgnoreComet("Comet shuffle changes shuffle metrics")) {
     withSQLConf(
         SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
         SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "500") {
@@ -489,7 +510,7 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("Exchange reuse") {
+  test("Exchange reuse", IgnoreComet("Comet shuffle changes shuffle metrics")) {
     withSQLConf(
         SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
         SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "80") {
@@ -508,7 +529,7 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("Exchange reuse with subqueries") {
+  test("Exchange reuse with subqueries", IgnoreComet("Comet shuffle changes shuffle metrics")) {
     withSQLConf(
         SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
         SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "80") {
@@ -539,7 +560,9 @@ class AdaptiveQueryExecSuite
       assert(smj.size == 1)
       val bhj = findTopLevelBroadcastHashJoin(adaptivePlan)
       assert(bhj.size == 1)
-      checkNumLocalShuffleReads(adaptivePlan)
+      // Comet shuffle changes shuffle metrics,
+      // so we can't check the number of local shuffle reads.
+      // checkNumLocalShuffleReads(adaptivePlan)
       // Even with local shuffle read, the query stage reuse can also work.
       val ex = findReusedExchange(adaptivePlan)
       assert(ex.nonEmpty)
@@ -560,7 +583,9 @@ class AdaptiveQueryExecSuite
       assert(smj.size == 1)
       val bhj = findTopLevelBroadcastHashJoin(adaptivePlan)
       assert(bhj.size == 1)
-      checkNumLocalShuffleReads(adaptivePlan)
+      // Comet shuffle changes shuffle metrics,
+      // so we can't check the number of local shuffle reads.
+      // checkNumLocalShuffleReads(adaptivePlan)
       // Even with local shuffle read, the query stage reuse can also work.
       val ex = findReusedExchange(adaptivePlan)
       assert(ex.isEmpty)
@@ -569,7 +594,8 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("Broadcast exchange reuse across subqueries") {
+  test("Broadcast exchange reuse across subqueries",
+      IgnoreComet("Comet shuffle changes shuffle metrics")) {
     withSQLConf(
         SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
         SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "20000000",
@@ -664,7 +690,8 @@ class AdaptiveQueryExecSuite
       val bhj = findTopLevelBroadcastHashJoin(adaptivePlan)
       assert(bhj.size == 1)
       // There is still a SMJ, and its two shuffles can't apply local read.
-      checkNumLocalShuffleReads(adaptivePlan, 2)
+      // Comet shuffle changes shuffle metrics
+      // checkNumLocalShuffleReads(adaptivePlan, 2)
     }
   }
 
@@ -786,7 +813,8 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("SPARK-29544: adaptive skew join with different join types") {
+  test("SPARK-29544: adaptive skew join with different join types",
+      IgnoreComet("Comet shuffle has different partition metrics")) {
     Seq("SHUFFLE_MERGE", "SHUFFLE_HASH").foreach { joinHint =>
       def getJoinNode(plan: SparkPlan): Seq[ShuffledJoin] = if (joinHint == "SHUFFLE_MERGE") {
         findTopLevelSortMergeJoin(plan)
@@ -1004,7 +1032,8 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("metrics of the shuffle read") {
+  test("metrics of the shuffle read",
+      IgnoreComet("Comet shuffle changes the metrics")) {
     withSQLConf(SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true") {
       val (_, adaptivePlan) = runAdaptiveAndVerifyResult(
         "SELECT key FROM testData GROUP BY key")
@@ -1599,7 +1628,7 @@ class AdaptiveQueryExecSuite
         val (_, adaptivePlan) = runAdaptiveAndVerifyResult(
           "SELECT id FROM v1 GROUP BY id DISTRIBUTE BY id")
         assert(collect(adaptivePlan) {
-          case s: ShuffleExchangeExec => s
+          case s: ShuffleExchangeLike => s
         }.length == 1)
       }
     }
@@ -1679,7 +1708,8 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("SPARK-33551: Do not use AQE shuffle read for repartition") {
+  test("SPARK-33551: Do not use AQE shuffle read for repartition",
+      IgnoreComet("Comet shuffle changes partition size")) {
     def hasRepartitionShuffle(plan: SparkPlan): Boolean = {
       find(plan) {
         case s: ShuffleExchangeLike =>
@@ -1864,6 +1894,9 @@ class AdaptiveQueryExecSuite
     def checkNoCoalescePartitions(ds: Dataset[Row], origin: ShuffleOrigin): Unit = {
       assert(collect(ds.queryExecution.executedPlan) {
         case s: ShuffleExchangeExec if s.shuffleOrigin == origin && s.numPartitions == 2 => s
+        case c: CometShuffleExchangeExec
+          if c.originalPlan.shuffleOrigin == origin &&
+            c.originalPlan.numPartitions == 2 => c
       }.size == 1)
       ds.collect()
       val plan = ds.queryExecution.executedPlan
@@ -1872,6 +1905,9 @@ class AdaptiveQueryExecSuite
       }.isEmpty)
       assert(collect(plan) {
         case s: ShuffleExchangeExec if s.shuffleOrigin == origin && s.numPartitions == 2 => s
+        case c: CometShuffleExchangeExec
+          if c.originalPlan.shuffleOrigin == origin &&
+            c.originalPlan.numPartitions == 2 => c
       }.size == 1)
       checkAnswer(ds, testData)
     }
@@ -2028,7 +2064,8 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("SPARK-35264: Support AQE side shuffled hash join formula") {
+  test("SPARK-35264: Support AQE side shuffled hash join formula",
+      IgnoreComet("Comet shuffle changes the partition size")) {
     withTempView("t1", "t2") {
       def checkJoinStrategy(shouldShuffleHashJoin: Boolean): Unit = {
         Seq("100", "100000").foreach { size =>
@@ -2114,7 +2151,8 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("SPARK-35725: Support optimize skewed partitions in RebalancePartitions") {
+  test("SPARK-35725: Support optimize skewed partitions in RebalancePartitions",
+      IgnoreComet("Comet shuffle changes shuffle metrics")) {
     withTempView("v") {
       withSQLConf(
         SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
@@ -2213,7 +2251,7 @@ class AdaptiveQueryExecSuite
               runAdaptiveAndVerifyResult(s"SELECT $repartition key1 FROM skewData1 " +
                 s"JOIN skewData2 ON key1 = key2 GROUP BY key1")
             val shuffles1 = collect(adaptive1) {
-              case s: ShuffleExchangeExec => s
+              case s: ShuffleExchangeLike => s
             }
             assert(shuffles1.size == 3)
             // shuffles1.head is the top-level shuffle under the Aggregate operator
@@ -2226,7 +2264,7 @@ class AdaptiveQueryExecSuite
               runAdaptiveAndVerifyResult(s"SELECT $repartition key1 FROM skewData1 " +
                 s"JOIN skewData2 ON key1 = key2")
             val shuffles2 = collect(adaptive2) {
-              case s: ShuffleExchangeExec => s
+              case s: ShuffleExchangeLike => s
             }
             if (hasRequiredDistribution) {
               assert(shuffles2.size == 3)
@@ -2260,7 +2298,8 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("SPARK-35794: Allow custom plugin for cost evaluator") {
+  test("SPARK-35794: Allow custom plugin for cost evaluator",
+      IgnoreComet("Comet shuffle changes shuffle metrics")) {
     CostEvaluator.instantiate(
       classOf[SimpleShuffleSortCostEvaluator].getCanonicalName, spark.sparkContext.getConf)
     intercept[IllegalArgumentException] {
@@ -2404,6 +2443,7 @@ class AdaptiveQueryExecSuite
           val (_, adaptive) = runAdaptiveAndVerifyResult(query)
           assert(adaptive.collect {
             case sort: SortExec => sort
+            case sort: CometSortExec => sort
           }.size == 1)
           val read = collect(adaptive) {
             case read: AQEShuffleReadExec => read
@@ -2421,7 +2461,8 @@ class AdaptiveQueryExecSuite
     }
   }
 
-  test("SPARK-37357: Add small partition factor for rebalance partitions") {
+  test("SPARK-37357: Add small partition factor for rebalance partitions",
+      IgnoreComet("Comet shuffle changes shuffle metrics")) {
     withTempView("v") {
       withSQLConf(
         SQLConf.ADAPTIVE_OPTIMIZE_SKEWS_IN_REBALANCE_PARTITIONS_ENABLED.key -> "true",
@@ -2533,7 +2574,7 @@ class AdaptiveQueryExecSuite
           runAdaptiveAndVerifyResult("SELECT key1 FROM skewData1 JOIN skewData2 ON key1 = key2 " +
             "JOIN skewData3 ON value2 = value3")
         val shuffles1 = collect(adaptive1) {
-          case s: ShuffleExchangeExec => s
+          case s: ShuffleExchangeLike => s
         }
         assert(shuffles1.size == 4)
         val smj1 = findTopLevelSortMergeJoin(adaptive1)
@@ -2544,7 +2585,7 @@ class AdaptiveQueryExecSuite
           runAdaptiveAndVerifyResult("SELECT key1 FROM skewData1 JOIN skewData2 ON key1 = key2 " +
             "JOIN skewData3 ON value1 = value3")
         val shuffles2 = collect(adaptive2) {
-          case s: ShuffleExchangeExec => s
+          case s: ShuffleExchangeLike => s
         }
         assert(shuffles2.size == 4)
         val smj2 = findTopLevelSortMergeJoin(adaptive2)
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/SchemaPruningSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/SchemaPruningSuite.scala
index bd9c79e5b96..2ada8c28842 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/SchemaPruningSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/SchemaPruningSuite.scala
@@ -27,6 +27,7 @@ import org.apache.spark.sql.catalyst.SchemaPruningTest
 import org.apache.spark.sql.catalyst.expressions.Concat
 import org.apache.spark.sql.catalyst.parser.CatalystSqlParser
 import org.apache.spark.sql.catalyst.plans.logical.Expand
+import org.apache.spark.sql.comet.{CometNativeScanExec, CometScanExec}
 import org.apache.spark.sql.execution.FileSourceScanExec
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper
 import org.apache.spark.sql.functions._
@@ -867,6 +868,8 @@ abstract class SchemaPruningSuite
     val fileSourceScanSchemata =
       collect(df.queryExecution.executedPlan) {
         case scan: FileSourceScanExec => scan.requiredSchema
+        case scan: CometScanExec => scan.requiredSchema
+        case scan: CometNativeScanExec => scan.requiredSchema
       }
     assert(fileSourceScanSchemata.size === expectedSchemaCatalogStrings.size,
       s"Found ${fileSourceScanSchemata.size} file sources in dataframe, " +
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/V1WriteCommandSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/V1WriteCommandSuite.scala
index ce43edb79c1..8436cb727c6 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/V1WriteCommandSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/V1WriteCommandSuite.scala
@@ -17,9 +17,10 @@
 
 package org.apache.spark.sql.execution.datasources
 
-import org.apache.spark.sql.{QueryTest, Row}
+import org.apache.spark.sql.{IgnoreComet, QueryTest, Row}
 import org.apache.spark.sql.catalyst.expressions.{Ascending, AttributeReference, NullsFirst, SortOrder}
 import org.apache.spark.sql.catalyst.plans.logical.{LogicalPlan, Sort}
+import org.apache.spark.sql.comet.CometSortExec
 import org.apache.spark.sql.execution.{QueryExecution, SortExec}
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanExec
 import org.apache.spark.sql.internal.SQLConf
@@ -225,6 +226,7 @@ class V1WriteCommandSuite extends QueryTest with SharedSparkSession with V1Write
           // assert the outer most sort in the executed plan
           assert(plan.collectFirst {
             case s: SortExec => s
+            case s: CometSortExec => s.originalPlan.asInstanceOf[SortExec]
           }.exists {
             case SortExec(Seq(
               SortOrder(AttributeReference("key", IntegerType, _, _), Ascending, NullsFirst, _),
@@ -272,6 +274,7 @@ class V1WriteCommandSuite extends QueryTest with SharedSparkSession with V1Write
         // assert the outer most sort in the executed plan
         assert(plan.collectFirst {
           case s: SortExec => s
+          case s: CometSortExec => s.originalPlan.asInstanceOf[SortExec]
         }.exists {
           case SortExec(Seq(
             SortOrder(AttributeReference("value", StringType, _, _), Ascending, NullsFirst, _),
@@ -305,7 +308,8 @@ class V1WriteCommandSuite extends QueryTest with SharedSparkSession with V1Write
     }
   }
 
-  test("v1 write with AQE changing SMJ to BHJ") {
+  test("v1 write with AQE changing SMJ to BHJ",
+      IgnoreComet("TODO: Comet SMJ to BHJ by AQE")) {
     withPlannedWrite { enabled =>
       withTable("t") {
         sql(
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/binaryfile/BinaryFileFormatSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/binaryfile/BinaryFileFormatSuite.scala
index 1d2e467c94c..3ea82cd1a3f 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/binaryfile/BinaryFileFormatSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/binaryfile/BinaryFileFormatSuite.scala
@@ -28,7 +28,7 @@ import org.apache.hadoop.fs.{FileStatus, FileSystem, GlobFilter, Path}
 import org.mockito.Mockito.{mock, when}
 
 import org.apache.spark.SparkException
-import org.apache.spark.sql.{DataFrame, QueryTest, Row}
+import org.apache.spark.sql.{DataFrame, IgnoreCometSuite, QueryTest, Row}
 import org.apache.spark.sql.catalyst.encoders.RowEncoder
 import org.apache.spark.sql.execution.datasources.PartitionedFile
 import org.apache.spark.sql.functions.col
@@ -38,7 +38,9 @@ import org.apache.spark.sql.test.SharedSparkSession
 import org.apache.spark.sql.types._
 import org.apache.spark.util.Utils
 
-class BinaryFileFormatSuite extends QueryTest with SharedSparkSession {
+// For some reason this suite is flaky w/ or w/o Comet when running in Github workflow.
+// Since it isn't related to Comet, we disable it for now.
+class BinaryFileFormatSuite extends QueryTest with SharedSparkSession with IgnoreCometSuite {
   import BinaryFileFormat._
 
   private var testDir: String = _
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetEncodingSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetEncodingSuite.scala
index 07e2849ce6f..3e73645b638 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetEncodingSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetEncodingSuite.scala
@@ -28,7 +28,7 @@ import org.apache.parquet.hadoop.ParquetOutputFormat
 
 import org.apache.spark.TestUtils
 import org.apache.spark.memory.MemoryMode
-import org.apache.spark.sql.Row
+import org.apache.spark.sql.{IgnoreComet, Row}
 import org.apache.spark.sql.catalyst.util.DateTimeUtils
 import org.apache.spark.sql.internal.SQLConf
 import org.apache.spark.sql.test.SharedSparkSession
@@ -201,7 +201,8 @@ class ParquetEncodingSuite extends ParquetCompatibilityTest with SharedSparkSess
     }
   }
 
-  test("parquet v2 pages - rle encoding for boolean value columns") {
+  test("parquet v2 pages - rle encoding for boolean value columns",
+      IgnoreComet("Comet doesn't support RLE encoding yet")) {
     val extraOptions = Map[String, String](
       ParquetOutputFormat.WRITER_VERSION -> ParquetProperties.WriterVersion.PARQUET_2_0.toString
     )
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetFilterSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetFilterSuite.scala
index 104b4e416cd..37ea65081e4 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetFilterSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetFilterSuite.scala
@@ -1096,7 +1096,11 @@ abstract class ParquetFilterSuite extends QueryTest with ParquetTest with Shared
           // When a filter is pushed to Parquet, Parquet can apply it to every row.
           // So, we can check the number of rows returned from the Parquet
           // to make sure our filter pushdown work.
-          assert(stripSparkFilter(df).count == 1)
+          // Similar to Spark's vectorized reader, Comet doesn't do row-level filtering but relies
+          // on Spark to apply the data filters after columnar batches are returned
+          if (!isCometEnabled) {
+            assert(stripSparkFilter(df).count == 1)
+          }
         }
       }
     }
@@ -1499,7 +1503,8 @@ abstract class ParquetFilterSuite extends QueryTest with ParquetTest with Shared
     }
   }
 
-  test("Filters should be pushed down for vectorized Parquet reader at row group level") {
+  test("Filters should be pushed down for vectorized Parquet reader at row group level",
+    IgnoreCometNativeScan("Native scans do not support the tested accumulator")) {
     import testImplicits._
 
     withSQLConf(SQLConf.PARQUET_VECTORIZED_READER_ENABLED.key -> "true",
@@ -1581,7 +1586,11 @@ abstract class ParquetFilterSuite extends QueryTest with ParquetTest with Shared
           // than the total length but should not be a single record.
           // Note that, if record level filtering is enabled, it should be a single record.
           // If no filter is pushed down to Parquet, it should be the total length of data.
-          assert(actual > 1 && actual < data.length)
+          // Only enable Comet test iff it's scan only, since with native execution
+          // `stripSparkFilter` can't remove the native filter
+          if (!isCometEnabled || isCometScanOnly) {
+            assert(actual > 1 && actual < data.length)
+          }
         }
       }
     }
@@ -1608,7 +1617,11 @@ abstract class ParquetFilterSuite extends QueryTest with ParquetTest with Shared
         // than the total length but should not be a single record.
         // Note that, if record level filtering is enabled, it should be a single record.
         // If no filter is pushed down to Parquet, it should be the total length of data.
-        assert(actual > 1 && actual < data.length)
+        // Only enable Comet test iff it's scan only, since with native execution
+        // `stripSparkFilter` can't remove the native filter
+        if (!isCometEnabled || isCometScanOnly) {
+          assert(actual > 1 && actual < data.length)
+        }
       }
     }
   }
@@ -1744,7 +1757,8 @@ abstract class ParquetFilterSuite extends QueryTest with ParquetTest with Shared
     }
   }
 
-  test("SPARK-17091: Convert IN predicate to Parquet filter push-down") {
+  test("SPARK-17091: Convert IN predicate to Parquet filter push-down",
+    IgnoreCometNativeScan("Comet has different push-down behavior")) {
     val schema = StructType(Seq(
       StructField("a", IntegerType, nullable = false)
     ))
@@ -1985,7 +1999,8 @@ abstract class ParquetFilterSuite extends QueryTest with ParquetTest with Shared
     }
   }
 
-  test("Support Parquet column index") {
+  test("Support Parquet column index",
+      IgnoreComet("Comet doesn't support Parquet column index yet")) {
     // block 1:
     //                      null count  min                                       max
     // page-0                         0  0                                         99
@@ -2045,7 +2060,8 @@ abstract class ParquetFilterSuite extends QueryTest with ParquetTest with Shared
     }
   }
 
-  test("SPARK-34562: Bloom filter push down") {
+  test("SPARK-34562: Bloom filter push down",
+    IgnoreCometNativeScan("Native scans do not support the tested accumulator")) {
     withTempPath { dir =>
       val path = dir.getCanonicalPath
       spark.range(100).selectExpr("id * 2 AS id")
@@ -2277,7 +2293,11 @@ class ParquetV1FilterSuite extends ParquetFilterSuite {
           assert(pushedParquetFilters.exists(_.getClass === filterClass),
             s"${pushedParquetFilters.map(_.getClass).toList} did not contain ${filterClass}.")
 
-          checker(stripSparkFilter(query), expected)
+          // Similar to Spark's vectorized reader, Comet doesn't do row-level filtering but relies
+          // on Spark to apply the data filters after columnar batches are returned
+          if (!isCometEnabled) {
+            checker(stripSparkFilter(query), expected)
+          }
         } else {
           assert(selectedFilters.isEmpty, "There is filter pushed down")
         }
@@ -2337,7 +2357,11 @@ class ParquetV2FilterSuite extends ParquetFilterSuite {
           assert(pushedParquetFilters.exists(_.getClass === filterClass),
             s"${pushedParquetFilters.map(_.getClass).toList} did not contain ${filterClass}.")
 
-          checker(stripSparkFilter(query), expected)
+          // Similar to Spark's vectorized reader, Comet doesn't do row-level filtering but relies
+          // on Spark to apply the data filters after columnar batches are returned
+          if (!isCometEnabled) {
+            checker(stripSparkFilter(query), expected)
+          }
 
         case _ =>
           throw new AnalysisException("Can not match ParquetTable in the query.")
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetIOSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetIOSuite.scala
index 8670d95c65e..b624c3811dd 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetIOSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetIOSuite.scala
@@ -1335,7 +1335,8 @@ class ParquetIOSuite extends QueryTest with ParquetTest with SharedSparkSession
     }
   }
 
-  test("SPARK-40128 read DELTA_LENGTH_BYTE_ARRAY encoded strings") {
+  test("SPARK-40128 read DELTA_LENGTH_BYTE_ARRAY encoded strings",
+      IgnoreComet("Comet doesn't support DELTA encoding yet")) {
     withAllParquetReaders {
       checkAnswer(
         // "fruit" column in this file is encoded using DELTA_LENGTH_BYTE_ARRAY.
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetQuerySuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetQuerySuite.scala
index 29cb224c878..44837aa953b 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetQuerySuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetQuerySuite.scala
@@ -978,7 +978,8 @@ abstract class ParquetQuerySuite extends QueryTest with ParquetTest with SharedS
     }
   }
 
-  test("SPARK-26677: negated null-safe equality comparison should not filter matched row groups") {
+  test("SPARK-26677: negated null-safe equality comparison should not filter matched row groups",
+    IgnoreCometNativeScan("Native scans had the filter pushed into DF operator, cannot strip")) {
     withAllParquetReaders {
       withTempPath { path =>
         // Repeated values for dictionary encoding.
@@ -1047,7 +1048,8 @@ abstract class ParquetQuerySuite extends QueryTest with ParquetTest with SharedS
         checkAnswer(readParquet(schema, path), df)
       }
 
-      withSQLConf(SQLConf.PARQUET_VECTORIZED_READER_ENABLED.key -> "false") {
+      withSQLConf(SQLConf.PARQUET_VECTORIZED_READER_ENABLED.key -> "false",
+          "spark.comet.enabled" -> "false") {
         val schema1 = "a DECIMAL(3, 2), b DECIMAL(18, 3), c DECIMAL(37, 3)"
         checkAnswer(readParquet(schema1, path), df)
         val schema2 = "a DECIMAL(3, 0), b DECIMAL(18, 1), c DECIMAL(37, 1)"
@@ -1069,7 +1071,8 @@ abstract class ParquetQuerySuite extends QueryTest with ParquetTest with SharedS
       val df = sql(s"SELECT 1 a, 123456 b, ${Int.MaxValue.toLong * 10} c, CAST('1.2' AS BINARY) d")
       df.write.parquet(path.toString)
 
-      withSQLConf(SQLConf.PARQUET_VECTORIZED_READER_ENABLED.key -> "false") {
+      withSQLConf(SQLConf.PARQUET_VECTORIZED_READER_ENABLED.key -> "false",
+          "spark.comet.enabled" -> "false") {
         checkAnswer(readParquet("a DECIMAL(3, 2)", path), sql("SELECT 1.00"))
         checkAnswer(readParquet("b DECIMAL(3, 2)", path), Row(null))
         checkAnswer(readParquet("b DECIMAL(11, 1)", path), sql("SELECT 123456.0"))
@@ -1128,7 +1131,7 @@ abstract class ParquetQuerySuite extends QueryTest with ParquetTest with SharedS
             .where(s"a < ${Long.MaxValue}")
             .collect()
         }
-        assert(exception.getCause.getCause.isInstanceOf[SchemaColumnConvertNotSupportedException])
+        assert(exception.getMessage.contains("Column: [a], Expected: bigint, Found: INT32"))
       }
     }
   }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetRebaseDatetimeSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetRebaseDatetimeSuite.scala
index 240bb4e6dcb..8287ffa03ca 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetRebaseDatetimeSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetRebaseDatetimeSuite.scala
@@ -21,7 +21,7 @@ import java.nio.file.{Files, Paths, StandardCopyOption}
 import java.sql.{Date, Timestamp}
 
 import org.apache.spark.{SPARK_VERSION_SHORT, SparkConf, SparkException, SparkUpgradeException}
-import org.apache.spark.sql.{QueryTest, Row, SPARK_LEGACY_DATETIME_METADATA_KEY, SPARK_LEGACY_INT96_METADATA_KEY, SPARK_TIMEZONE_METADATA_KEY}
+import org.apache.spark.sql.{IgnoreCometSuite, QueryTest, Row, SPARK_LEGACY_DATETIME_METADATA_KEY, SPARK_LEGACY_INT96_METADATA_KEY, SPARK_TIMEZONE_METADATA_KEY}
 import org.apache.spark.sql.catalyst.util.DateTimeTestUtils
 import org.apache.spark.sql.internal.SQLConf
 import org.apache.spark.sql.internal.SQLConf.{LegacyBehaviorPolicy, ParquetOutputTimestampType}
@@ -30,9 +30,11 @@ import org.apache.spark.sql.internal.SQLConf.ParquetOutputTimestampType.{INT96,
 import org.apache.spark.sql.test.SharedSparkSession
 import org.apache.spark.tags.SlowSQLTest
 
+// Comet is disabled for this suite because it doesn't support datetime rebase mode
 abstract class ParquetRebaseDatetimeSuite
   extends QueryTest
   with ParquetTest
+  with IgnoreCometSuite
   with SharedSparkSession {
 
   import testImplicits._
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetRowIndexSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetRowIndexSuite.scala
index 351c6d698fc..583d9225cca 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetRowIndexSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetRowIndexSuite.scala
@@ -20,12 +20,14 @@ import java.io.File
 
 import scala.collection.JavaConverters._
 
+import org.apache.comet.CometConf
 import org.apache.hadoop.fs.Path
 import org.apache.parquet.column.ParquetProperties._
 import org.apache.parquet.hadoop.{ParquetFileReader, ParquetOutputFormat}
 import org.apache.parquet.hadoop.ParquetWriter.DEFAULT_BLOCK_SIZE
 
 import org.apache.spark.sql.QueryTest
+import org.apache.spark.sql.comet.{CometBatchScanExec, CometScanExec}
 import org.apache.spark.sql.execution.FileSourceScanExec
 import org.apache.spark.sql.execution.datasources.FileFormat
 import org.apache.spark.sql.execution.datasources.v2.BatchScanExec
@@ -172,6 +174,8 @@ class ParquetRowIndexSuite extends QueryTest with SharedSparkSession {
 
   private def testRowIndexGeneration(label: String, conf: RowIndexTestConf): Unit = {
     test (s"$label - ${conf.desc}") {
+      // native_datafusion Parquet scan does not support row index generation.
+      assume(CometConf.COMET_NATIVE_SCAN_IMPL.get() != CometConf.SCAN_NATIVE_DATAFUSION)
       withSQLConf(conf.sqlConfs: _*) {
         withTempPath { path =>
           val rowIndexColName = FileFormat.ROW_INDEX_TEMPORARY_COLUMN_NAME
@@ -230,6 +234,12 @@ class ParquetRowIndexSuite extends QueryTest with SharedSparkSession {
             case f: FileSourceScanExec =>
               numPartitions += f.inputRDD.partitions.length
               numOutputRows += f.metrics("numOutputRows").value
+            case b: CometScanExec =>
+              numPartitions += b.inputRDD.partitions.length
+              numOutputRows += b.metrics("numOutputRows").value
+            case b: CometBatchScanExec =>
+              numPartitions += b.inputRDD.partitions.length
+              numOutputRows += b.metrics("numOutputRows").value
             case _ =>
           }
           assert(numPartitions > 0)
@@ -291,6 +301,8 @@ class ParquetRowIndexSuite extends QueryTest with SharedSparkSession {
     val conf = RowIndexTestConf(useDataSourceV2 = useDataSourceV2)
 
     test(s"invalid row index column type - ${conf.desc}") {
+      // native_datafusion Parquet scan does not support row index generation.
+      assume(CometConf.COMET_NATIVE_SCAN_IMPL.get() != CometConf.SCAN_NATIVE_DATAFUSION)
       withSQLConf(conf.sqlConfs: _*) {
         withTempPath{ path =>
           val df = spark.range(0, 10, 1, 1).toDF("id")
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaPruningSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaPruningSuite.scala
index 5c0b7def039..151184bc98c 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaPruningSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaPruningSuite.scala
@@ -20,6 +20,7 @@ package org.apache.spark.sql.execution.datasources.parquet
 import org.apache.spark.SparkConf
 import org.apache.spark.sql.DataFrame
 import org.apache.spark.sql.catalyst.parser.CatalystSqlParser
+import org.apache.spark.sql.comet.CometBatchScanExec
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper
 import org.apache.spark.sql.execution.datasources.SchemaPruningSuite
 import org.apache.spark.sql.execution.datasources.v2.BatchScanExec
@@ -56,6 +57,7 @@ class ParquetV2SchemaPruningSuite extends ParquetSchemaPruningSuite {
     val fileSourceScanSchemata =
       collect(df.queryExecution.executedPlan) {
         case scan: BatchScanExec => scan.scan.asInstanceOf[ParquetScan].readDataSchema
+        case scan: CometBatchScanExec => scan.scan.asInstanceOf[ParquetScan].readDataSchema
       }
     assert(fileSourceScanSchemata.size === expectedSchemaCatalogStrings.size,
       s"Found ${fileSourceScanSchemata.size} file sources in dataframe, " +
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaSuite.scala
index bf5c51b89bb..ca22370ca3b 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaSuite.scala
@@ -27,6 +27,7 @@ import org.apache.parquet.schema.PrimitiveType.PrimitiveTypeName
 import org.apache.parquet.schema.Type._
 
 import org.apache.spark.SparkException
+import org.apache.spark.sql.IgnoreComet
 import org.apache.spark.sql.catalyst.ScalaReflection
 import org.apache.spark.sql.execution.datasources.SchemaColumnConvertNotSupportedException
 import org.apache.spark.sql.functions.desc
@@ -1016,7 +1017,8 @@ class ParquetSchemaSuite extends ParquetSchemaTest {
     e
   }
 
-  test("schema mismatch failure error message for parquet reader") {
+  test("schema mismatch failure error message for parquet reader",
+      IgnoreComet("Comet doesn't work with vectorizedReaderEnabled = false")) {
     withTempPath { dir =>
       val e = testSchemaMismatch(dir.getCanonicalPath, vectorizedReaderEnabled = false)
       val expectedMessage = "Encountered error while reading file"
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/debug/DebuggingSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/debug/DebuggingSuite.scala
index 3a0bd35cb70..b28f06a757f 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/debug/DebuggingSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/debug/DebuggingSuite.scala
@@ -20,6 +20,7 @@ package org.apache.spark.sql.execution.debug
 import java.io.ByteArrayOutputStream
 
 import org.apache.spark.rdd.RDD
+import org.apache.spark.sql.IgnoreComet
 import org.apache.spark.sql.catalyst.InternalRow
 import org.apache.spark.sql.catalyst.expressions.Attribute
 import org.apache.spark.sql.catalyst.expressions.codegen.CodegenContext
@@ -124,7 +125,8 @@ class DebuggingSuite extends DebuggingSuiteBase with DisableAdaptiveExecutionSui
          | id LongType: {}""".stripMargin))
   }
 
-  test("SPARK-28537: DebugExec cannot debug columnar related queries") {
+  test("SPARK-28537: DebugExec cannot debug columnar related queries",
+      IgnoreComet("Comet does not use FileScan")) {
     withTempPath { workDir =>
       val workDirPath = workDir.getAbsolutePath
       val input = spark.range(5).toDF("id")
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/metric/SQLMetricsSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/metric/SQLMetricsSuite.scala
index 26e61c6b58d..cb09d7e116a 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/metric/SQLMetricsSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/metric/SQLMetricsSuite.scala
@@ -45,8 +45,10 @@ import org.apache.spark.sql.util.QueryExecutionListener
 import org.apache.spark.util.{AccumulatorContext, JsonProtocol}
 
 // Disable AQE because metric info is different with AQE on/off
+// This test suite runs tests against the metrics of physical operators.
+// Disabling it for Comet because the metrics are different with Comet enabled.
 class SQLMetricsSuite extends SharedSparkSession with SQLMetricsTestUtils
-  with DisableAdaptiveExecutionSuite {
+  with DisableAdaptiveExecutionSuite with IgnoreCometSuite {
   import testImplicits._
 
   /**
@@ -737,7 +739,8 @@ class SQLMetricsSuite extends SharedSparkSession with SQLMetricsTestUtils
     }
   }
 
-  test("SPARK-26327: FileSourceScanExec metrics") {
+  test("SPARK-26327: FileSourceScanExec metrics",
+      IgnoreComet("Spark uses row-based Parquet reader while Comet is vectorized")) {
     withTable("testDataForScan") {
       spark.range(10).selectExpr("id", "id % 3 as p")
         .write.partitionBy("p").saveAsTable("testDataForScan")
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/python/ExtractPythonUDFsSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/python/ExtractPythonUDFsSuite.scala
index 0ab8691801d..d9125f658ad 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/python/ExtractPythonUDFsSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/python/ExtractPythonUDFsSuite.scala
@@ -18,6 +18,7 @@
 package org.apache.spark.sql.execution.python
 
 import org.apache.spark.sql.catalyst.plans.logical.{ArrowEvalPython, BatchEvalPython, Limit, LocalLimit}
+import org.apache.spark.sql.comet._
 import org.apache.spark.sql.execution.{FileSourceScanExec, SparkPlan, SparkPlanTest}
 import org.apache.spark.sql.execution.datasources.v2.BatchScanExec
 import org.apache.spark.sql.execution.datasources.v2.parquet.ParquetScan
@@ -108,6 +109,7 @@ class ExtractPythonUDFsSuite extends SparkPlanTest with SharedSparkSession {
 
           val scanNodes = query.queryExecution.executedPlan.collect {
             case scan: FileSourceScanExec => scan
+            case scan: CometScanExec => scan
           }
           assert(scanNodes.length == 1)
           assert(scanNodes.head.output.map(_.name) == Seq("a"))
@@ -120,11 +122,16 @@ class ExtractPythonUDFsSuite extends SparkPlanTest with SharedSparkSession {
 
           val scanNodes = query.queryExecution.executedPlan.collect {
             case scan: FileSourceScanExec => scan
+            case scan: CometScanExec => scan
           }
           assert(scanNodes.length == 1)
           // $"a" is not null and $"a" > 1
-          assert(scanNodes.head.dataFilters.length == 2)
-          assert(scanNodes.head.dataFilters.flatMap(_.references.map(_.name)).distinct == Seq("a"))
+          val dataFilters = scanNodes.head match {
+            case scan: FileSourceScanExec => scan.dataFilters
+            case scan: CometScanExec => scan.dataFilters
+          }
+          assert(dataFilters.length == 2)
+          assert(dataFilters.flatMap(_.references.map(_.name)).distinct == Seq("a"))
         }
       }
     }
@@ -145,6 +152,7 @@ class ExtractPythonUDFsSuite extends SparkPlanTest with SharedSparkSession {
 
           val scanNodes = query.queryExecution.executedPlan.collect {
             case scan: BatchScanExec => scan
+            case scan: CometBatchScanExec => scan
           }
           assert(scanNodes.length == 1)
           assert(scanNodes.head.output.map(_.name) == Seq("a"))
@@ -157,6 +165,7 @@ class ExtractPythonUDFsSuite extends SparkPlanTest with SharedSparkSession {
 
           val scanNodes = query.queryExecution.executedPlan.collect {
             case scan: BatchScanExec => scan
+            case scan: CometBatchScanExec => scan
           }
           assert(scanNodes.length == 1)
           // $"a" is not null and $"a" > 1
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/execution/streaming/AsyncProgressTrackingMicroBatchExecutionSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/execution/streaming/AsyncProgressTrackingMicroBatchExecutionSuite.scala
index d083cac48ff..3c11bcde807 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/execution/streaming/AsyncProgressTrackingMicroBatchExecutionSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/execution/streaming/AsyncProgressTrackingMicroBatchExecutionSuite.scala
@@ -37,8 +37,10 @@ import org.apache.spark.sql.streaming.{StreamingQuery, StreamingQueryException,
 import org.apache.spark.sql.streaming.util.StreamManualClock
 import org.apache.spark.util.Utils
 
+// For some reason this suite is flaky w/ or w/o Comet when running in Github workflow.
+// Since it isn't related to Comet, we disable it for now.
 class AsyncProgressTrackingMicroBatchExecutionSuite
-  extends StreamTest with BeforeAndAfter with Matchers {
+  extends StreamTest with BeforeAndAfter with Matchers with IgnoreCometSuite {
 
   import testImplicits._
 
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/sources/BucketedReadSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/sources/BucketedReadSuite.scala
index 266bb343526..f8ad838e2b2 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/sources/BucketedReadSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/sources/BucketedReadSuite.scala
@@ -19,15 +19,18 @@ package org.apache.spark.sql.sources
 
 import scala.util.Random
 
+import org.apache.comet.CometConf
+
 import org.apache.spark.sql._
 import org.apache.spark.sql.catalyst.catalog.BucketSpec
 import org.apache.spark.sql.catalyst.expressions
 import org.apache.spark.sql.catalyst.expressions._
 import org.apache.spark.sql.catalyst.plans.physical.HashPartitioning
-import org.apache.spark.sql.execution.{FileSourceScanExec, SortExec, SparkPlan}
+import org.apache.spark.sql.comet._
+import org.apache.spark.sql.execution.{ColumnarToRowExec, FileSourceScanExec, SortExec, SparkPlan}
 import org.apache.spark.sql.execution.adaptive.{AdaptiveSparkPlanExec, AdaptiveSparkPlanHelper, DisableAdaptiveExecution}
 import org.apache.spark.sql.execution.datasources.BucketingUtils
-import org.apache.spark.sql.execution.exchange.ShuffleExchangeExec
+import org.apache.spark.sql.execution.exchange.{ShuffleExchangeExec, ShuffleExchangeLike}
 import org.apache.spark.sql.execution.joins.SortMergeJoinExec
 import org.apache.spark.sql.functions._
 import org.apache.spark.sql.internal.SQLConf
@@ -101,12 +104,22 @@ abstract class BucketedReadSuite extends QueryTest with SQLTestUtils with Adapti
     }
   }
 
-  private def getFileScan(plan: SparkPlan): FileSourceScanExec = {
-    val fileScan = collect(plan) { case f: FileSourceScanExec => f }
+  private def getFileScan(plan: SparkPlan): SparkPlan = {
+    val fileScan = collect(plan) {
+      case f: FileSourceScanExec => f
+      case f: CometScanExec => f
+      case f: CometNativeScanExec => f
+    }
     assert(fileScan.nonEmpty, plan)
     fileScan.head
   }
 
+  private def getBucketScan(plan: SparkPlan): Boolean = getFileScan(plan) match {
+    case fs: FileSourceScanExec => fs.bucketedScan
+    case bs: CometScanExec => bs.bucketedScan
+    case ns: CometNativeScanExec => ns.bucketedScan
+  }
+
   // To verify if the bucket pruning works, this function checks two conditions:
   //   1) Check if the pruned buckets (before filtering) are empty.
   //   2) Verify the final result is the same as the expected one
@@ -155,7 +168,8 @@ abstract class BucketedReadSuite extends QueryTest with SQLTestUtils with Adapti
           val planWithoutBucketedScan = bucketedDataFrame.filter(filterCondition)
             .queryExecution.executedPlan
           val fileScan = getFileScan(planWithoutBucketedScan)
-          assert(!fileScan.bucketedScan, s"except no bucketed scan but found\n$fileScan")
+          val bucketedScan = getBucketScan(planWithoutBucketedScan)
+          assert(!bucketedScan, s"except no bucketed scan but found\n$fileScan")
 
           val bucketColumnType = bucketedDataFrame.schema.apply(bucketColumnIndex).dataType
           val rowsWithInvalidBuckets = fileScan.execute().filter(row => {
@@ -451,28 +465,54 @@ abstract class BucketedReadSuite extends QueryTest with SQLTestUtils with Adapti
         val joinOperator = if (joined.sqlContext.conf.adaptiveExecutionEnabled) {
           val executedPlan =
             joined.queryExecution.executedPlan.asInstanceOf[AdaptiveSparkPlanExec].executedPlan
-          assert(executedPlan.isInstanceOf[SortMergeJoinExec])
-          executedPlan.asInstanceOf[SortMergeJoinExec]
+          executedPlan match {
+            case s: SortMergeJoinExec => s
+            case b: CometSortMergeJoinExec =>
+              b.originalPlan match {
+                case s: SortMergeJoinExec => s
+                case o => fail(s"expected SortMergeJoinExec, but found\n$o")
+              }
+            case o => fail(s"expected SortMergeJoinExec, but found\n$o")
+          }
         } else {
           val executedPlan = joined.queryExecution.executedPlan
-          assert(executedPlan.isInstanceOf[SortMergeJoinExec])
-          executedPlan.asInstanceOf[SortMergeJoinExec]
+          executedPlan match {
+            case s: SortMergeJoinExec => s
+            case ColumnarToRowExec(child) =>
+              child.asInstanceOf[CometSortMergeJoinExec].originalPlan match {
+                case s: SortMergeJoinExec => s
+                case o => fail(s"expected SortMergeJoinExec, but found\n$o")
+              }
+            case CometColumnarToRowExec(child) =>
+              child.asInstanceOf[CometSortMergeJoinExec].originalPlan match {
+                case s: SortMergeJoinExec => s
+                case o => fail(s"expected SortMergeJoinExec, but found\n$o")
+              }
+            case CometNativeColumnarToRowExec(child) =>
+              child.asInstanceOf[CometSortMergeJoinExec].originalPlan match {
+                case s: SortMergeJoinExec => s
+                case o => fail(s"expected SortMergeJoinExec, but found\n$o")
+              }
+            case o => fail(s"expected SortMergeJoinExec, but found\n$o")
+          }
         }
 
         // check existence of shuffle
         assert(
-          joinOperator.left.exists(_.isInstanceOf[ShuffleExchangeExec]) == shuffleLeft,
+          joinOperator.left.exists(op => op.isInstanceOf[ShuffleExchangeLike]) == shuffleLeft,
           s"expected shuffle in plan to be $shuffleLeft but found\n${joinOperator.left}")
         assert(
-          joinOperator.right.exists(_.isInstanceOf[ShuffleExchangeExec]) == shuffleRight,
+          joinOperator.right.exists(op => op.isInstanceOf[ShuffleExchangeLike]) == shuffleRight,
           s"expected shuffle in plan to be $shuffleRight but found\n${joinOperator.right}")
 
         // check existence of sort
         assert(
-          joinOperator.left.exists(_.isInstanceOf[SortExec]) == sortLeft,
+          joinOperator.left.exists(op => op.isInstanceOf[SortExec] || op.isInstanceOf[CometExec] &&
+            op.asInstanceOf[CometExec].originalPlan.isInstanceOf[SortExec]) == sortLeft,
           s"expected sort in the left child to be $sortLeft but found\n${joinOperator.left}")
         assert(
-          joinOperator.right.exists(_.isInstanceOf[SortExec]) == sortRight,
+          joinOperator.right.exists(op => op.isInstanceOf[SortExec] || op.isInstanceOf[CometExec] &&
+            op.asInstanceOf[CometExec].originalPlan.isInstanceOf[SortExec]) == sortRight,
           s"expected sort in the right child to be $sortRight but found\n${joinOperator.right}")
 
         // check the output partitioning
@@ -835,11 +875,11 @@ abstract class BucketedReadSuite extends QueryTest with SQLTestUtils with Adapti
       df1.write.format("parquet").bucketBy(8, "i").saveAsTable("bucketed_table")
 
       val scanDF = spark.table("bucketed_table").select("j")
-      assert(!getFileScan(scanDF.queryExecution.executedPlan).bucketedScan)
+      assert(!getBucketScan(scanDF.queryExecution.executedPlan))
       checkAnswer(scanDF, df1.select("j"))
 
       val aggDF = spark.table("bucketed_table").groupBy("j").agg(max("k"))
-      assert(!getFileScan(aggDF.queryExecution.executedPlan).bucketedScan)
+      assert(!getBucketScan(aggDF.queryExecution.executedPlan))
       checkAnswer(aggDF, df1.groupBy("j").agg(max("k")))
     }
   }
@@ -894,7 +934,10 @@ abstract class BucketedReadSuite extends QueryTest with SQLTestUtils with Adapti
   }
 
   test("SPARK-29655 Read bucketed tables obeys spark.sql.shuffle.partitions") {
+    // Range partitioning uses random samples, so per-partition comparisons do not always yield
+    // the same results. Disable Comet native range partitioning.
     withSQLConf(
+      CometConf.COMET_EXEC_SHUFFLE_WITH_RANGE_PARTITIONING_ENABLED.key -> "false",
       SQLConf.SHUFFLE_PARTITIONS.key -> "5",
       SQLConf.COALESCE_PARTITIONS_INITIAL_PARTITION_NUM.key -> "7")  {
       val bucketSpec = Some(BucketSpec(6, Seq("i", "j"), Nil))
@@ -913,7 +956,10 @@ abstract class BucketedReadSuite extends QueryTest with SQLTestUtils with Adapti
   }
 
   test("SPARK-32767 Bucket join should work if SHUFFLE_PARTITIONS larger than bucket number") {
+    // Range partitioning uses random samples, so per-partition comparisons do not always yield
+    // the same results. Disable Comet native range partitioning.
     withSQLConf(
+      CometConf.COMET_EXEC_SHUFFLE_WITH_RANGE_PARTITIONING_ENABLED.key -> "false",
       SQLConf.SHUFFLE_PARTITIONS.key -> "9",
       SQLConf.COALESCE_PARTITIONS_INITIAL_PARTITION_NUM.key -> "10")  {
 
@@ -943,7 +989,10 @@ abstract class BucketedReadSuite extends QueryTest with SQLTestUtils with Adapti
   }
 
   test("bucket coalescing eliminates shuffle") {
+    // Range partitioning uses random samples, so per-partition comparisons do not always yield
+    // the same results. Disable Comet native range partitioning.
     withSQLConf(
+      CometConf.COMET_EXEC_SHUFFLE_WITH_RANGE_PARTITIONING_ENABLED.key -> "false",
       SQLConf.COALESCE_BUCKETS_IN_JOIN_ENABLED.key -> "true",
       SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "false") {
       // The side with bucketedTableTestSpec1 will be coalesced to have 4 output partitions.
@@ -1026,15 +1075,26 @@ abstract class BucketedReadSuite extends QueryTest with SQLTestUtils with Adapti
             expectedNumShuffles: Int,
             expectedCoalescedNumBuckets: Option[Int]): Unit = {
           val plan = sql(query).queryExecution.executedPlan
-          val shuffles = plan.collect { case s: ShuffleExchangeExec => s }
+          val shuffles = plan.collect {
+            case s: ShuffleExchangeLike => s
+          }
           assert(shuffles.length == expectedNumShuffles)
 
           val scans = plan.collect {
             case f: FileSourceScanExec if f.optionalNumCoalescedBuckets.isDefined => f
+            case b: CometScanExec if b.optionalNumCoalescedBuckets.isDefined => b
+            case b: CometNativeScanExec if b.optionalNumCoalescedBuckets.isDefined => b
           }
           if (expectedCoalescedNumBuckets.isDefined) {
             assert(scans.length == 1)
-            assert(scans.head.optionalNumCoalescedBuckets == expectedCoalescedNumBuckets)
+            scans.head match {
+              case f: FileSourceScanExec =>
+                assert(f.optionalNumCoalescedBuckets == expectedCoalescedNumBuckets)
+              case b: CometScanExec =>
+                assert(b.optionalNumCoalescedBuckets == expectedCoalescedNumBuckets)
+              case b: CometNativeScanExec =>
+                assert(b.optionalNumCoalescedBuckets == expectedCoalescedNumBuckets)
+            }
           } else {
             assert(scans.isEmpty)
           }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/sources/CreateTableAsSelectSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/sources/CreateTableAsSelectSuite.scala
index b5f6d2f9f68..277784a92af 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/sources/CreateTableAsSelectSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/sources/CreateTableAsSelectSuite.scala
@@ -20,7 +20,7 @@ package org.apache.spark.sql.sources
 import java.io.File
 
 import org.apache.spark.SparkException
-import org.apache.spark.sql.AnalysisException
+import org.apache.spark.sql.{AnalysisException, IgnoreCometSuite}
 import org.apache.spark.sql.catalyst.TableIdentifier
 import org.apache.spark.sql.catalyst.catalog.{BucketSpec, CatalogTableType}
 import org.apache.spark.sql.catalyst.parser.ParseException
@@ -28,7 +28,10 @@ import org.apache.spark.sql.internal.SQLConf.BUCKETING_MAX_BUCKETS
 import org.apache.spark.sql.test.SharedSparkSession
 import org.apache.spark.util.Utils
 
-class CreateTableAsSelectSuite extends DataSourceTest with SharedSparkSession {
+// For some reason this suite is flaky w/ or w/o Comet when running in Github workflow.
+// Since it isn't related to Comet, we disable it for now.
+class CreateTableAsSelectSuite extends DataSourceTest with SharedSparkSession
+    with IgnoreCometSuite {
   import testImplicits._
 
   protected override lazy val sql = spark.sql _
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/sources/DisableUnnecessaryBucketedScanSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/sources/DisableUnnecessaryBucketedScanSuite.scala
index 1f55742cd67..f20129d9dd8 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/sources/DisableUnnecessaryBucketedScanSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/sources/DisableUnnecessaryBucketedScanSuite.scala
@@ -20,6 +20,7 @@ package org.apache.spark.sql.sources
 import org.apache.spark.sql.QueryTest
 import org.apache.spark.sql.catalyst.expressions.AttributeReference
 import org.apache.spark.sql.catalyst.plans.physical.HashPartitioning
+import org.apache.spark.sql.comet.{CometNativeScanExec, CometScanExec}
 import org.apache.spark.sql.execution.FileSourceScanExec
 import org.apache.spark.sql.execution.adaptive.{AdaptiveSparkPlanHelper, DisableAdaptiveExecutionSuite, EnableAdaptiveExecutionSuite}
 import org.apache.spark.sql.execution.exchange.ShuffleExchangeExec
@@ -71,7 +72,11 @@ abstract class DisableUnnecessaryBucketedScanSuite
 
     def checkNumBucketedScan(query: String, expectedNumBucketedScan: Int): Unit = {
       val plan = sql(query).queryExecution.executedPlan
-      val bucketedScan = collect(plan) { case s: FileSourceScanExec if s.bucketedScan => s }
+      val bucketedScan = collect(plan) {
+        case s: FileSourceScanExec if s.bucketedScan => s
+        case s: CometScanExec if s.bucketedScan => s
+        case s: CometNativeScanExec if s.bucketedScan => s
+      }
       assert(bucketedScan.length == expectedNumBucketedScan)
     }
 
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/streaming/FileStreamSinkSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/streaming/FileStreamSinkSuite.scala
index 75f440caefc..36b1146bc3a 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/streaming/FileStreamSinkSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/streaming/FileStreamSinkSuite.scala
@@ -34,6 +34,7 @@ import org.apache.spark.paths.SparkPath
 import org.apache.spark.scheduler.{SparkListener, SparkListenerTaskEnd}
 import org.apache.spark.sql.{AnalysisException, DataFrame}
 import org.apache.spark.sql.catalyst.util.stringToFile
+import org.apache.spark.sql.comet.CometBatchScanExec
 import org.apache.spark.sql.execution.DataSourceScanExec
 import org.apache.spark.sql.execution.datasources._
 import org.apache.spark.sql.execution.datasources.v2.{BatchScanExec, DataSourceV2Relation, FileScan, FileTable}
@@ -748,6 +749,8 @@ class FileStreamSinkV2Suite extends FileStreamSinkSuite {
       val fileScan = df.queryExecution.executedPlan.collect {
         case batch: BatchScanExec if batch.scan.isInstanceOf[FileScan] =>
           batch.scan.asInstanceOf[FileScan]
+        case batch: CometBatchScanExec if batch.scan.isInstanceOf[FileScan] =>
+          batch.scan.asInstanceOf[FileScan]
       }.headOption.getOrElse {
         fail(s"No FileScan in query\n${df.queryExecution}")
       }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/streaming/FlatMapGroupsWithStateSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/streaming/FlatMapGroupsWithStateSuite.scala
index 6aa7d0945c7..ad26ad833e2 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/streaming/FlatMapGroupsWithStateSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/streaming/FlatMapGroupsWithStateSuite.scala
@@ -46,6 +46,7 @@ case class RunningCount(count: Long)
 
 case class Result(key: Long, count: Int)
 
+// TODO: fix Comet to enable this suite
 @SlowSQLTest
 class FlatMapGroupsWithStateSuite extends StateStoreMetricsTest {
 
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamSuite.scala
index ef5b8a769fe..84fe1bfabc9 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamSuite.scala
@@ -37,6 +37,7 @@ import org.apache.spark.sql._
 import org.apache.spark.sql.catalyst.plans.logical.{Range, RepartitionByExpression}
 import org.apache.spark.sql.catalyst.streaming.{InternalOutputModes, StreamingRelationV2}
 import org.apache.spark.sql.catalyst.util.DateTimeUtils
+import org.apache.spark.sql.comet.CometLocalLimitExec
 import org.apache.spark.sql.execution.{LocalLimitExec, SimpleMode, SparkPlan}
 import org.apache.spark.sql.execution.command.ExplainCommand
 import org.apache.spark.sql.execution.streaming._
@@ -1103,11 +1104,12 @@ class StreamSuite extends StreamTest {
       val localLimits = execPlan.collect {
         case l: LocalLimitExec => l
         case l: StreamingLocalLimitExec => l
+        case l: CometLocalLimitExec => l
       }
 
       require(
         localLimits.size == 1,
-        s"Cant verify local limit optimization with this plan:\n$execPlan")
+        s"Cant verify local limit optimization ${localLimits.size} with this plan:\n$execPlan")
 
       if (expectStreamingLimit) {
         assert(
@@ -1115,7 +1117,8 @@ class StreamSuite extends StreamTest {
           s"Local limit was not StreamingLocalLimitExec:\n$execPlan")
       } else {
         assert(
-          localLimits.head.isInstanceOf[LocalLimitExec],
+          localLimits.head.isInstanceOf[LocalLimitExec] ||
+            localLimits.head.isInstanceOf[CometLocalLimitExec],
           s"Local limit was not LocalLimitExec:\n$execPlan")
       }
     }
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamingAggregationDistributionSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamingAggregationDistributionSuite.scala
index b4c4ec7acbf..20579284856 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamingAggregationDistributionSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamingAggregationDistributionSuite.scala
@@ -23,6 +23,7 @@ import org.apache.commons.io.FileUtils
 import org.scalatest.Assertions
 
 import org.apache.spark.sql.catalyst.plans.physical.UnspecifiedDistribution
+import org.apache.spark.sql.comet.CometHashAggregateExec
 import org.apache.spark.sql.execution.aggregate.BaseAggregateExec
 import org.apache.spark.sql.execution.streaming.{MemoryStream, StateStoreRestoreExec, StateStoreSaveExec}
 import org.apache.spark.sql.functions.count
@@ -67,6 +68,7 @@ class StreamingAggregationDistributionSuite extends StreamTest
         // verify aggregations in between, except partial aggregation
         val allAggregateExecs = query.lastExecution.executedPlan.collect {
           case a: BaseAggregateExec => a
+          case c: CometHashAggregateExec => c.originalPlan
         }
 
         val aggregateExecsWithoutPartialAgg = allAggregateExecs.filter {
@@ -201,6 +203,7 @@ class StreamingAggregationDistributionSuite extends StreamTest
         // verify aggregations in between, except partial aggregation
         val allAggregateExecs = executedPlan.collect {
           case a: BaseAggregateExec => a
+          case c: CometHashAggregateExec => c.originalPlan
         }
 
         val aggregateExecsWithoutPartialAgg = allAggregateExecs.filter {
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamingJoinSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamingJoinSuite.scala
index 4d92e270539..33f1c2eb75e 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamingJoinSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamingJoinSuite.scala
@@ -31,7 +31,7 @@ import org.apache.spark.scheduler.ExecutorCacheTaskLocation
 import org.apache.spark.sql.{DataFrame, Row, SparkSession}
 import org.apache.spark.sql.catalyst.expressions.{AttributeReference, Expression}
 import org.apache.spark.sql.catalyst.plans.physical.HashPartitioning
-import org.apache.spark.sql.execution.exchange.ShuffleExchangeExec
+import org.apache.spark.sql.execution.exchange.ShuffleExchangeLike
 import org.apache.spark.sql.execution.streaming.{MemoryStream, StatefulOperatorStateInfo, StreamingSymmetricHashJoinExec, StreamingSymmetricHashJoinHelper}
 import org.apache.spark.sql.execution.streaming.state.{RocksDBStateStoreProvider, StateStore, StateStoreProviderId}
 import org.apache.spark.sql.functions._
@@ -619,14 +619,28 @@ class StreamingInnerJoinSuite extends StreamingJoinSuite {
 
         val numPartitions = spark.sqlContext.conf.getConf(SQLConf.SHUFFLE_PARTITIONS)
 
-        assert(query.lastExecution.executedPlan.collect {
-          case j @ StreamingSymmetricHashJoinExec(_, _, _, _, _, _, _, _, _,
-            ShuffleExchangeExec(opA: HashPartitioning, _, _),
-            ShuffleExchangeExec(opB: HashPartitioning, _, _))
-              if partitionExpressionsColumns(opA.expressions) === Seq("a", "b")
-                && partitionExpressionsColumns(opB.expressions) === Seq("a", "b")
-                && opA.numPartitions == numPartitions && opB.numPartitions == numPartitions => j
-        }.size == 1)
+        val join = query.lastExecution.executedPlan.collect {
+          case j: StreamingSymmetricHashJoinExec => j
+        }.head
+        val opA = join.left.collect {
+          case s: ShuffleExchangeLike
+            if s.outputPartitioning.isInstanceOf[HashPartitioning] &&
+              partitionExpressionsColumns(
+                s.outputPartitioning
+                  .asInstanceOf[HashPartitioning].expressions) === Seq("a", "b") =>
+            s.outputPartitioning
+              .asInstanceOf[HashPartitioning]
+        }.head
+        val opB = join.right.collect {
+          case s: ShuffleExchangeLike
+            if s.outputPartitioning.isInstanceOf[HashPartitioning] &&
+              partitionExpressionsColumns(
+                s.outputPartitioning
+                  .asInstanceOf[HashPartitioning].expressions) === Seq("a", "b") =>
+            s.outputPartitioning
+              .asInstanceOf[HashPartitioning]
+        }.head
+        assert(opA.numPartitions == numPartitions && opB.numPartitions == numPartitions)
       })
   }
 
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/streaming/test/DataStreamTableAPISuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/streaming/test/DataStreamTableAPISuite.scala
index abe606ad9c1..2d930b64cca 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/streaming/test/DataStreamTableAPISuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/streaming/test/DataStreamTableAPISuite.scala
@@ -22,7 +22,7 @@ import java.util
 
 import org.scalatest.BeforeAndAfter
 
-import org.apache.spark.sql.{AnalysisException, Row, SaveMode}
+import org.apache.spark.sql.{AnalysisException, IgnoreComet, Row, SaveMode}
 import org.apache.spark.sql.catalyst.TableIdentifier
 import org.apache.spark.sql.catalyst.analysis.TableAlreadyExistsException
 import org.apache.spark.sql.catalyst.catalog.{CatalogStorageFormat, CatalogTable, CatalogTableType}
@@ -327,7 +327,8 @@ class DataStreamTableAPISuite extends StreamTest with BeforeAndAfter {
     }
   }
 
-  test("explain with table on DSv1 data source") {
+  test("explain with table on DSv1 data source",
+      IgnoreComet("Comet explain output is different")) {
     val tblSourceName = "tbl_src"
     val tblTargetName = "tbl_target"
     val tblSourceQualified = s"default.$tblSourceName"
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/test/SQLTestUtils.scala b/sql/core/src/test/scala/org/apache/spark/sql/test/SQLTestUtils.scala
index dd55fcfe42c..a1d390c93d0 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/test/SQLTestUtils.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/test/SQLTestUtils.scala
@@ -27,6 +27,7 @@ import scala.concurrent.duration._
 import scala.language.implicitConversions
 import scala.util.control.NonFatal
 
+import org.apache.comet.CometConf
 import org.apache.hadoop.fs.Path
 import org.scalactic.source.Position
 import org.scalatest.{BeforeAndAfterAll, Suite, Tag}
@@ -41,6 +42,7 @@ import org.apache.spark.sql.catalyst.plans.PlanTest
 import org.apache.spark.sql.catalyst.plans.PlanTestBase
 import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan
 import org.apache.spark.sql.catalyst.util._
+import org.apache.spark.sql.comet._
 import org.apache.spark.sql.execution.FilterExec
 import org.apache.spark.sql.execution.adaptive.DisableAdaptiveExecution
 import org.apache.spark.sql.execution.datasources.DataSourceUtils
@@ -118,7 +120,7 @@ private[sql] trait SQLTestUtils extends SparkFunSuite with SQLTestUtilsBase with
   }
 
   override protected def test(testName: String, testTags: Tag*)(testFun: => Any)
-      (implicit pos: Position): Unit = {
+                             (implicit pos: Position): Unit = {
     if (testTags.exists(_.isInstanceOf[DisableAdaptiveExecution])) {
       super.test(testName, testTags: _*) {
         withSQLConf(SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "false") {
@@ -126,7 +128,28 @@ private[sql] trait SQLTestUtils extends SparkFunSuite with SQLTestUtilsBase with
         }
       }
     } else {
-      super.test(testName, testTags: _*)(testFun)
+      if (isCometEnabled && testTags.exists(_.isInstanceOf[IgnoreComet])) {
+        ignore(testName + " (disabled when Comet is on)", testTags: _*)(testFun)
+      } else {
+        val cometScanImpl = CometConf.COMET_NATIVE_SCAN_IMPL.get(conf)
+        val isNativeIcebergCompat = cometScanImpl == CometConf.SCAN_NATIVE_ICEBERG_COMPAT ||
+          cometScanImpl == CometConf.SCAN_AUTO
+        val isNativeDataFusion = cometScanImpl == CometConf.SCAN_NATIVE_DATAFUSION ||
+          cometScanImpl == CometConf.SCAN_AUTO
+        if (isCometEnabled && isNativeIcebergCompat &&
+          testTags.exists(_.isInstanceOf[IgnoreCometNativeIcebergCompat])) {
+          ignore(testName + " (disabled for NATIVE_ICEBERG_COMPAT)", testTags: _*)(testFun)
+        } else if (isCometEnabled && isNativeDataFusion &&
+          testTags.exists(_.isInstanceOf[IgnoreCometNativeDataFusion])) {
+          ignore(testName + " (disabled for NATIVE_DATAFUSION)", testTags: _*)(testFun)
+        } else if (isCometEnabled && (isNativeDataFusion || isNativeIcebergCompat) &&
+          testTags.exists(_.isInstanceOf[IgnoreCometNativeScan])) {
+          ignore(testName + " (disabled for NATIVE_DATAFUSION and NATIVE_ICEBERG_COMPAT)",
+            testTags: _*)(testFun)
+        } else {
+          super.test(testName, testTags: _*)(testFun)
+        }
+      }
     }
   }
 
@@ -242,6 +265,29 @@ private[sql] trait SQLTestUtilsBase
     protected override def _sqlContext: SQLContext = self.spark.sqlContext
   }
 
+  /**
+   * Whether Comet extension is enabled
+   */
+  protected def isCometEnabled: Boolean = SparkSession.isCometEnabled
+
+  /**
+   * Whether to enable ansi mode This is only effective when
+   * [[isCometEnabled]] returns true.
+   */
+  protected def enableCometAnsiMode: Boolean = {
+    val v = System.getenv("ENABLE_COMET_ANSI_MODE")
+    v != null && v.toBoolean
+  }
+
+  /**
+   * Whether Spark should only apply Comet scan optimization. This is only effective when
+   * [[isCometEnabled]] returns true.
+   */
+  protected def isCometScanOnly: Boolean = {
+    val v = System.getenv("ENABLE_COMET_SCAN_ONLY")
+    v != null && v.toBoolean
+  }
+
   protected override def withSQLConf(pairs: (String, String)*)(f: => Unit): Unit = {
     SparkSession.setActiveSession(spark)
     super.withSQLConf(pairs: _*)(f)
@@ -434,6 +480,8 @@ private[sql] trait SQLTestUtilsBase
     val schema = df.schema
     val withoutFilters = df.queryExecution.executedPlan.transform {
       case FilterExec(_, child) => child
+      case CometFilterExec(_, _, _, _, child, _) => child
+      case CometProjectExec(_, _, _, _, CometFilterExec(_, _, _, _, child, _), _) => child
     }
 
     spark.internalCreateDataFrame(withoutFilters.execute(), schema)
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/test/SharedSparkSession.scala b/sql/core/src/test/scala/org/apache/spark/sql/test/SharedSparkSession.scala
index ed2e309fa07..a5ea58146ad 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/test/SharedSparkSession.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/test/SharedSparkSession.scala
@@ -74,6 +74,31 @@ trait SharedSparkSessionBase
       // this rule may potentially block testing of other optimization rules such as
       // ConstantPropagation etc.
       .set(SQLConf.OPTIMIZER_EXCLUDED_RULES.key, ConvertToLocalRelation.ruleName)
+    // Enable Comet if `ENABLE_COMET` environment variable is set
+    if (isCometEnabled) {
+      conf
+        .set("spark.sql.extensions", "org.apache.comet.CometSparkSessionExtensions")
+        .set("spark.comet.enabled", "true")
+        .set("spark.comet.parquet.respectFilterPushdown", "true")
+
+      if (!isCometScanOnly) {
+        conf
+          .set("spark.comet.exec.enabled", "true")
+          .set("spark.shuffle.manager",
+            "org.apache.spark.sql.comet.execution.shuffle.CometShuffleManager")
+          .set("spark.comet.exec.shuffle.enabled", "true")
+          .set("spark.comet.memoryOverhead", "10g")
+      } else {
+        conf
+          .set("spark.comet.exec.enabled", "false")
+          .set("spark.comet.exec.shuffle.enabled", "false")
+      }
+
+      if (enableCometAnsiMode) {
+        conf
+          .set("spark.sql.ansi.enabled", "true")
+      }
+    }
     conf.set(
       StaticSQLConf.WAREHOUSE_PATH,
       conf.get(StaticSQLConf.WAREHOUSE_PATH) + "/" + getClass.getCanonicalName)
diff --git a/sql/core/src/test/scala/org/apache/spark/status/api/v1/sql/SqlResourceWithActualMetricsSuite.scala b/sql/core/src/test/scala/org/apache/spark/status/api/v1/sql/SqlResourceWithActualMetricsSuite.scala
index 1510e8957f9..7618419d8ff 100644
--- a/sql/core/src/test/scala/org/apache/spark/status/api/v1/sql/SqlResourceWithActualMetricsSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/status/api/v1/sql/SqlResourceWithActualMetricsSuite.scala
@@ -43,7 +43,7 @@ class SqlResourceWithActualMetricsSuite
   import testImplicits._
 
   // Exclude nodes which may not have the metrics
-  val excludedNodes = List("WholeStageCodegen", "Project", "SerializeFromObject")
+  val excludedNodes = List("WholeStageCodegen", "Project", "SerializeFromObject", "RowToColumnar")
 
   implicit val formats = new DefaultFormats {
     override def dateFormatter = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss")
diff --git a/sql/hive/src/test/scala/org/apache/spark/sql/hive/DynamicPartitionPruningHiveScanSuite.scala b/sql/hive/src/test/scala/org/apache/spark/sql/hive/DynamicPartitionPruningHiveScanSuite.scala
index 52abd248f3a..7a199931a08 100644
--- a/sql/hive/src/test/scala/org/apache/spark/sql/hive/DynamicPartitionPruningHiveScanSuite.scala
+++ b/sql/hive/src/test/scala/org/apache/spark/sql/hive/DynamicPartitionPruningHiveScanSuite.scala
@@ -19,6 +19,7 @@ package org.apache.spark.sql.hive
 
 import org.apache.spark.sql._
 import org.apache.spark.sql.catalyst.expressions.{DynamicPruningExpression, Expression}
+import org.apache.spark.sql.comet._
 import org.apache.spark.sql.execution._
 import org.apache.spark.sql.execution.adaptive.{DisableAdaptiveExecutionSuite, EnableAdaptiveExecutionSuite}
 import org.apache.spark.sql.hive.execution.HiveTableScanExec
@@ -35,6 +36,9 @@ abstract class DynamicPartitionPruningHiveScanSuiteBase
       case s: FileSourceScanExec => s.partitionFilters.collect {
         case d: DynamicPruningExpression => d.child
       }
+      case s: CometScanExec => s.partitionFilters.collect {
+        case d: DynamicPruningExpression => d.child
+      }
       case h: HiveTableScanExec => h.partitionPruningPred.collect {
         case d: DynamicPruningExpression => d.child
       }
diff --git a/sql/hive/src/test/scala/org/apache/spark/sql/hive/PartitionedTablePerfStatsSuite.scala b/sql/hive/src/test/scala/org/apache/spark/sql/hive/PartitionedTablePerfStatsSuite.scala
index de3b1ffccf0..2a76d127093 100644
--- a/sql/hive/src/test/scala/org/apache/spark/sql/hive/PartitionedTablePerfStatsSuite.scala
+++ b/sql/hive/src/test/scala/org/apache/spark/sql/hive/PartitionedTablePerfStatsSuite.scala
@@ -23,14 +23,15 @@ import java.util.concurrent.{Executors, TimeUnit}
 import org.scalatest.BeforeAndAfterEach
 
 import org.apache.spark.metrics.source.HiveCatalogMetrics
-import org.apache.spark.sql.QueryTest
+import org.apache.spark.sql.{IgnoreCometSuite, QueryTest}
 import org.apache.spark.sql.execution.datasources.FileStatusCache
 import org.apache.spark.sql.hive.test.TestHiveSingleton
 import org.apache.spark.sql.internal.SQLConf
 import org.apache.spark.sql.test.SQLTestUtils
 
 class PartitionedTablePerfStatsSuite
-  extends QueryTest with TestHiveSingleton with SQLTestUtils with BeforeAndAfterEach {
+  extends QueryTest with TestHiveSingleton with SQLTestUtils with BeforeAndAfterEach
+    with IgnoreCometSuite {
 
   override def beforeEach(): Unit = {
     super.beforeEach()
diff --git a/sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/SQLQuerySuite.scala b/sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/SQLQuerySuite.scala
index a902cb3a69e..800a3acbe99 100644
--- a/sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/SQLQuerySuite.scala
+++ b/sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/SQLQuerySuite.scala
@@ -24,6 +24,7 @@ import java.sql.{Date, Timestamp}
 import java.util.{Locale, Set}
 
 import com.google.common.io.Files
+import org.apache.comet.CometConf
 import org.apache.hadoop.fs.{FileSystem, Path}
 
 import org.apache.spark.{SparkException, TestUtils}
@@ -838,8 +839,13 @@ abstract class SQLQuerySuiteBase extends QueryTest with SQLTestUtils with TestHi
   }
 
   test("SPARK-2554 SumDistinct partial aggregation") {
-    checkAnswer(sql("SELECT sum( distinct key) FROM src group by key order by key"),
-      sql("SELECT distinct key FROM src order by key").collect().toSeq)
+    // Range partitioning uses random samples, so per-partition comparisons do not always yield
+    // the same results. Disable Comet native range partitioning.
+    withSQLConf(CometConf.COMET_EXEC_SHUFFLE_WITH_RANGE_PARTITIONING_ENABLED.key -> "false")
+    {
+      checkAnswer(sql("SELECT sum( distinct key) FROM src group by key order by key"),
+        sql("SELECT distinct key FROM src order by key").collect().toSeq)
+    }
   }
 
   test("SPARK-4963 DataFrame sample on mutable row return wrong result") {
diff --git a/sql/hive/src/test/scala/org/apache/spark/sql/hive/test/TestHive.scala b/sql/hive/src/test/scala/org/apache/spark/sql/hive/test/TestHive.scala
index 07361cfdce9..97dab2a3506 100644
--- a/sql/hive/src/test/scala/org/apache/spark/sql/hive/test/TestHive.scala
+++ b/sql/hive/src/test/scala/org/apache/spark/sql/hive/test/TestHive.scala
@@ -55,25 +55,54 @@ object TestHive
     new SparkContext(
       System.getProperty("spark.sql.test.master", "local[1]"),
       "TestSQLContext",
-      new SparkConf()
-        .set("spark.sql.test", "")
-        .set(SQLConf.CODEGEN_FALLBACK.key, "false")
-        .set(SQLConf.CODEGEN_FACTORY_MODE.key, CodegenObjectFactoryMode.CODEGEN_ONLY.toString)
-        .set(HiveUtils.HIVE_METASTORE_BARRIER_PREFIXES.key,
-          "org.apache.spark.sql.hive.execution.PairSerDe")
-        .set(WAREHOUSE_PATH.key, TestHiveContext.makeWarehouseDir().toURI.getPath)
-        // SPARK-8910
-        .set(UI_ENABLED, false)
-        .set(config.UNSAFE_EXCEPTION_ON_MEMORY_LEAK, true)
-        // Hive changed the default of hive.metastore.disallow.incompatible.col.type.changes
-        // from false to true. For details, see the JIRA HIVE-12320 and HIVE-17764.
-        .set("spark.hadoop.hive.metastore.disallow.incompatible.col.type.changes", "false")
-        // Disable ConvertToLocalRelation for better test coverage. Test cases built on
-        // LocalRelation will exercise the optimization rules better by disabling it as
-        // this rule may potentially block testing of other optimization rules such as
-        // ConstantPropagation etc.
-        .set(SQLConf.OPTIMIZER_EXCLUDED_RULES.key, ConvertToLocalRelation.ruleName)))
+      {
+        val conf = new SparkConf()
+          .set("spark.sql.test", "")
+          .set(SQLConf.CODEGEN_FALLBACK.key, "false")
+          .set(SQLConf.CODEGEN_FACTORY_MODE.key, CodegenObjectFactoryMode.CODEGEN_ONLY.toString)
+          .set(HiveUtils.HIVE_METASTORE_BARRIER_PREFIXES.key,
+            "org.apache.spark.sql.hive.execution.PairSerDe")
+          .set(WAREHOUSE_PATH.key, TestHiveContext.makeWarehouseDir().toURI.getPath)
+          // SPARK-8910
+          .set(UI_ENABLED, false)
+          .set(config.UNSAFE_EXCEPTION_ON_MEMORY_LEAK, true)
+          // Hive changed the default of hive.metastore.disallow.incompatible.col.type.changes
+          // from false to true. For details, see the JIRA HIVE-12320 and HIVE-17764.
+          .set("spark.hadoop.hive.metastore.disallow.incompatible.col.type.changes", "false")
+          // Disable ConvertToLocalRelation for better test coverage. Test cases built on
+          // LocalRelation will exercise the optimization rules better by disabling it as
+          // this rule may potentially block testing of other optimization rules such as
+          // ConstantPropagation etc.
+          .set(SQLConf.OPTIMIZER_EXCLUDED_RULES.key, ConvertToLocalRelation.ruleName)
+
+        if (SparkSession.isCometEnabled) {
+          conf
+            .set("spark.sql.extensions", "org.apache.comet.CometSparkSessionExtensions")
+            .set("spark.comet.enabled", "true")
+
+          val v = System.getenv("ENABLE_COMET_SCAN_ONLY")
+          if (v == null || !v.toBoolean) {
+            conf
+              .set("spark.comet.exec.enabled", "true")
+              .set("spark.shuffle.manager",
+                "org.apache.spark.sql.comet.execution.shuffle.CometShuffleManager")
+              .set("spark.comet.exec.shuffle.enabled", "true")
+          } else {
+            conf
+              .set("spark.comet.exec.enabled", "false")
+              .set("spark.comet.exec.shuffle.enabled", "false")
+          }
+
+          val a = System.getenv("ENABLE_COMET_ANSI_MODE")
+          if (a != null && a.toBoolean) {
+            conf
+              .set("spark.sql.ansi.enabled", "true")
+          }
+        }
 
+        conf
+      }
+    ))
 
 case class TestHiveVersion(hiveClient: HiveClient)
   extends TestHiveContext(TestHive.sparkContext, hiveClient)