exec/java-exec/src/test/java/org/apache/drill/exec/planner/logical/TestConvertCountToDirectScan.java - drill - Git at Google

 /*
  * 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.drill.exec.planner.logical;

 import org.apache.drill.categories.PlannerTest;
 import org.apache.drill.categories.UnlikelyTest;
 import org.apache.drill.exec.ExecConstants;
 import org.apache.drill.test.ClusterFixture;
 import org.apache.drill.test.ClusterFixtureBuilder;
 import org.apache.drill.test.ClusterTest;
 import org.junit.BeforeClass;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;

 import java.nio.file.Paths;

 import static org.junit.Assert.assertEquals;

 @Category({PlannerTest.class, UnlikelyTest.class})
 public class TestConvertCountToDirectScan extends ClusterTest {

   @BeforeClass
   public static void setup() throws Exception {
     ClusterFixtureBuilder builder = ClusterFixture.builder(dirTestWatcher);
     dirTestWatcher.copyResourceToRoot(Paths.get("directcount.parquet"));
     startCluster(builder);
   }

   @Test
   public void testCaseDoesNotConvertToDirectScan() throws Exception {
     queryBuilder()
       .sql("select " +
       "count(case when n_name = 'ALGERIA' and n_regionkey = 2 then n_nationkey else null end) as cnt " +
       "from dfs.`directcount.parquet`")
       .planMatcher()
       .include("CASE")
       .match();
   }

   @Test
   public void testConvertSimpleCountToDirectScan() throws Exception {
     String sql = "select count(*) as cnt from cp.`tpch/nation.parquet`";

     queryBuilder()
       .sql(sql)
       .planMatcher()
       .include("DynamicPojoRecordReader")
       .match();

     testBuilder()
       .sqlQuery(sql)
       .unOrdered()
       .baselineColumns("cnt")
       .baselineValues(25L)
       .go();
   }

   @Test
   public void testConvertSimpleCountConstToDirectScan() throws Exception {
     String sql = "select count(100) as cnt from cp.`tpch/nation.parquet`";

     queryBuilder()
       .sql(sql)
       .planMatcher()
       .include("DynamicPojoRecordReader")
       .match();

     testBuilder()
       .sqlQuery(sql)
       .unOrdered()
       .baselineColumns("cnt")
       .baselineValues(25L)
       .go();
   }

   @Test
   public void testConvertSimpleCountConstExprToDirectScan() throws Exception {
     String sql = "select count(1 + 2) as cnt from cp.`tpch/nation.parquet`";

     queryBuilder()
       .sql(sql)
       .planMatcher()
       .include("DynamicPojoRecordReader")
       .match();

     testBuilder()
       .sqlQuery(sql)
       .unOrdered()
       .baselineColumns("cnt")
       .baselineValues(25L)
       .go();
   }

   @Test
   public void testDoesNotConvertForDirectoryColumns() throws Exception {
     String sql = "select count(dir0) as cnt from cp.`tpch/nation.parquet`";

     queryBuilder()
       .sql(sql)
       .planMatcher()
       .include("ParquetGroupScan")
       .match();

     testBuilder()
       .sqlQuery(sql)
       .unOrdered()
       .baselineColumns("cnt")
       .baselineValues(0L)
       .go();
   }

   @Test
   public void testConvertForImplicitColumns() throws Exception {
     String sql = "select count(fqn) as cnt from cp.`tpch/nation.parquet`";

     queryBuilder()
       .sql(sql)
       .planMatcher()
       .include("DynamicPojoRecordReader")
       .match();

     testBuilder()
       .sqlQuery(sql)
       .unOrdered()
       .baselineColumns("cnt")
       .baselineValues(25L)
       .go();
   }

   @Test
   public void ensureConvertForSeveralColumns() throws Exception {
     run("use dfs.tmp");
     String tableName = "parquet_table_counts";

     try {
       String newFqnColumnName = "new_fqn";
       client.alterSession(ExecConstants.IMPLICIT_FQN_COLUMN_LABEL, newFqnColumnName);
       run("create table %s as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
       run("refresh table metadata %s", tableName);

       String sql = String.format("select\n" +
         "count(%s) as implicit_count,\n" +
         "count(*) as star_count,\n" +
         "count(col_int) as int_column_count,\n" +
         "count(col_vrchr) as vrchr_column_count\n" +
         "from %s", newFqnColumnName, tableName);

       queryBuilder()
         .sql(sql)
         .planMatcher()
         .include("DynamicPojoRecordReader")
         .match();

       testBuilder()
         .sqlQuery(sql)
         .unOrdered()
         .baselineColumns("implicit_count", "star_count", "int_column_count", "vrchr_column_count")
         .baselineValues(6L, 6L, 2L, 3L)
         .go();

     } finally {
       client.resetSession(ExecConstants.IMPLICIT_FQN_COLUMN_LABEL);
       run("drop table if exists %s", tableName);
     }
   }

   @Test
   public void testCorrectCountWithMissingStatistics() throws Exception {
     run("use dfs.tmp");
     String tableName = "wide_str_table";
     try {
       // table will contain two partitions: one - with null value, second - with non null value
       run("create table %s partition by (col_str) as select * from cp.`parquet/wide_string.parquet`", tableName);

       String sql = String.format("select count(col_str) as cnt_str, count(*) as cnt_total from %s", tableName);

       // direct scan should not be applied since we don't have statistics
       queryBuilder()
         .sql(sql)
         .planMatcher()
         .exclude("DynamicPojoRecordReader")
         .match();

       testBuilder()
         .sqlQuery(sql)
         .unOrdered()
         .baselineColumns("cnt_str", "cnt_total")
         .baselineValues(1L, 2L)
         .go();
     } finally {
       run("drop table if exists %s", tableName);
     }
   }

   @Test
   public void testCountsWithMetadataCacheSummary() throws Exception {
     run("use dfs.tmp");

     String tableName = "parquet_table_counts";

     try {
       run("create table `%s/1` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
       run("create table `%s/2` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
       run("create table `%s/3` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
       run("create table `%s/4` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);

       run("refresh table metadata %s", tableName);

       String sql = String.format("select\n" +
         "count(*) as star_count,\n" +
         "count(col_int) as int_column_count,\n" +
         "count(col_vrchr) as vrchr_column_count\n" +
         "from %s", tableName);

       queryBuilder()
         .sql(sql)
         .planMatcher()
         .include("numFiles = 1")
         .include("usedMetadataSummaryFile = true")
         .include("DynamicPojoRecordReader")
         .match();

       testBuilder()
         .sqlQuery(sql)
         .unOrdered()
         .baselineColumns("star_count", "int_column_count", "vrchr_column_count")
         .baselineValues(24L, 8L, 12L)
         .go();

     } finally {
       run("drop table if exists %s", tableName);
     }
   }

   @Test
   public void testCountsWithMetadataCacheSummaryAndDirPruning() throws Exception {
     run("use dfs.tmp");
     String tableName = "parquet_table_counts";

     try {
       run("create table `%s/1` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
       run("create table `%s/2` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
       run("create table `%s/3` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
       run("create table `%s/4` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);

       run("refresh table metadata %s", tableName);

       String sql = String.format("select\n" +
         "count(*) as star_count,\n" +
         "count(col_int) as int_column_count,\n" +
         "count(col_vrchr) as vrchr_column_count\n" +
         "from %s where dir0 = 1 ", tableName);

       queryBuilder()
         .sql(sql)
         .planMatcher()
         .include("numFiles = 1")
         .include("usedMetadataSummaryFile = true")
         .include("DynamicPojoRecordReader")
         .match();

       testBuilder()
         .sqlQuery(sql)
         .unOrdered()
         .baselineColumns("star_count", "int_column_count", "vrchr_column_count")
         .baselineValues(6L, 2L, 3L)
         .go();

     } finally {
       run("drop table if exists %s", tableName);
     }
   }

   @Test
   public void textConvertAbsentColumn() throws Exception {
     String sql = "select count(abc) as cnt from cp.`tpch/nation.parquet`";

     queryBuilder()
         .sql(sql)
         .planMatcher()
         .include("DynamicPojoRecordReader")
         .match();

     testBuilder()
         .sqlQuery(sql)
         .unOrdered()
         .baselineColumns("cnt")
         .baselineValues(0L)
         .go();
   }

   @Test
   public void testCountsWithWildCard() throws Exception {
     run("use dfs.tmp");
     String tableName = "parquet_table_counts";

     try {
       for (int i = 0; i < 10; i++) {
         run("create table `%s/12/%s` as select * from cp.`tpch/nation.parquet`", tableName, i);
       }
       run("create table `%s/2` as select * from cp.`tpch/nation.parquet`", tableName);
       run("create table `%s/2/11` as select * from cp.`tpch/nation.parquet`", tableName);
       run("create table `%s/2/12` as select * from cp.`tpch/nation.parquet`", tableName);

       run("refresh table metadata %s", tableName);

       String sql = String.format("select\n" +
         "count(*) as star_count\n" +
         "from `%s/1*`", tableName);

       queryBuilder()
         .sql(sql)
         .planMatcher()
         .include("usedMetadataSummaryFile = false")
         .include("DynamicPojoRecordReader")
         .match();

       testBuilder()
         .sqlQuery(sql)
         .unOrdered()
         .baselineColumns("star_count")
         .baselineValues(250L)
         .go();

     } finally {
       run("drop table if exists %s", tableName);
     }
   }

   @Test
   public void testCountsForLeafDirectories() throws Exception {
     run("use dfs.tmp");
     String tableName = "parquet_table_counts";

     try {
       run("create table `%s/1` as select * from cp.`tpch/nation.parquet`", tableName);
       run("create table `%s/2` as select * from cp.`tpch/nation.parquet`", tableName);
       run("create table `%s/3` as select * from cp.`tpch/nation.parquet`", tableName);
       run("refresh table metadata %s", tableName);

       String sql = String.format("select\n" +
         "count(*) as star_count\n" +
         "from `%s/1`", tableName);

       queryBuilder()
         .sql(sql)
         .planMatcher()
         .include("numFiles = 1")
         .include("usedMetadataSummaryFile = true")
         .include("DynamicPojoRecordReader")
         .match();

       testBuilder()
         .sqlQuery(sql)
         .unOrdered()
         .baselineColumns("star_count")
         .baselineValues(25L)
         .go();

     } finally {
       run("drop table if exists %s", tableName);
     }
   }

   @Test
   public void testCountsForDirWithFilesAndDir() throws Exception {
     run("use dfs.tmp");
     String tableName = "parquet_table_counts";

     try {
       run("create table `%s/1` as select * from cp.`tpch/nation.parquet`", tableName);
       run("create table `%s/1/2` as select * from cp.`tpch/nation.parquet`", tableName);
       run("create table `%s/1/3` as select * from cp.`tpch/nation.parquet`", tableName);
       run("refresh table metadata %s", tableName);

       String sql = String.format("select count(*) as star_count from `%s/1`", tableName);

       queryBuilder()
         .sql(sql)
         .planMatcher()
         .include("numFiles = 1")
         .include("usedMetadataSummaryFile = true")
         .include("DynamicPojoRecordReader")
         .match();

       testBuilder()
         .sqlQuery(sql)
         .unOrdered()
         .baselineColumns("star_count")
         .baselineValues(75L)
         .go();

     } finally {
       run("drop table if exists %s", tableName);
     }
   }

   @Test
   public void testCountsWithNonExistingColumn() throws Exception {
     run("use dfs.tmp");
     String tableName = "parquet_table_counts_nonex";

     try {
       run("create table `%s/1` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
       run("create table `%s/2` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
       run("create table `%s/3` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
       run("create table `%s/4` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);

       run("refresh table metadata %s", tableName);

       String sql = String.format("select\n" +
         "count(*) as star_count,\n" +
         "count(col_int) as int_column_count,\n" +
         "count(col_vrchr) as vrchr_column_count,\n" +
         "count(non_existent) as non_existent\n" +
         "from %s", tableName);

       queryBuilder()
         .sql(sql)
         .planMatcher()
         .include("numFiles = 1")
         .include("usedMetadataSummaryFile = true")
         .include("DynamicPojoRecordReader")
         .match();

       testBuilder()
         .sqlQuery(sql)
         .unOrdered()
         .baselineColumns("star_count", "int_column_count", "vrchr_column_count", "non_existent" )
         .baselineValues(24L, 8L, 12L, 0L)
         .go();

     } finally {
       run("drop table if exists %s", tableName);
     }
   }

   @Test
   public void testSerDe() throws Exception {
     String sql = "select count(*) as cnt from cp.`tpch/nation.parquet`";
     String plan = queryBuilder().sql(sql).explainJson();
     long cnt = queryBuilder().physical(plan).singletonLong();
     assertEquals("Counts should match", 25L, cnt);
   }
 }
	/*
	* 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.drill.exec.planner.logical;

	import org.apache.drill.categories.PlannerTest;
	import org.apache.drill.categories.UnlikelyTest;
	import org.apache.drill.exec.ExecConstants;
	import org.apache.drill.test.ClusterFixture;
	import org.apache.drill.test.ClusterFixtureBuilder;
	import org.apache.drill.test.ClusterTest;
	import org.junit.BeforeClass;
	import org.junit.Test;
	import org.junit.experimental.categories.Category;

	import java.nio.file.Paths;

	import static org.junit.Assert.assertEquals;

	@Category({PlannerTest.class, UnlikelyTest.class})
	public class TestConvertCountToDirectScan extends ClusterTest {

	@BeforeClass
	public static void setup() throws Exception {
	ClusterFixtureBuilder builder = ClusterFixture.builder(dirTestWatcher);
	dirTestWatcher.copyResourceToRoot(Paths.get("directcount.parquet"));
	startCluster(builder);
	}

	@Test
	public void testCaseDoesNotConvertToDirectScan() throws Exception {
	queryBuilder()
	.sql("select " +
	"count(case when n_name = 'ALGERIA' and n_regionkey = 2 then n_nationkey else null end) as cnt " +
	"from dfs.`directcount.parquet`")
	.planMatcher()
	.include("CASE")
	.match();
	}

	@Test
	public void testConvertSimpleCountToDirectScan() throws Exception {
	String sql = "select count(*) as cnt from cp.`tpch/nation.parquet`";

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("cnt")
	.baselineValues(25L)
	.go();
	}

	@Test
	public void testConvertSimpleCountConstToDirectScan() throws Exception {
	String sql = "select count(100) as cnt from cp.`tpch/nation.parquet`";

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("cnt")
	.baselineValues(25L)
	.go();
	}

	@Test
	public void testConvertSimpleCountConstExprToDirectScan() throws Exception {
	String sql = "select count(1 + 2) as cnt from cp.`tpch/nation.parquet`";

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("cnt")
	.baselineValues(25L)
	.go();
	}

	@Test
	public void testDoesNotConvertForDirectoryColumns() throws Exception {
	String sql = "select count(dir0) as cnt from cp.`tpch/nation.parquet`";

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("ParquetGroupScan")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("cnt")
	.baselineValues(0L)
	.go();
	}

	@Test
	public void testConvertForImplicitColumns() throws Exception {
	String sql = "select count(fqn) as cnt from cp.`tpch/nation.parquet`";

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("cnt")
	.baselineValues(25L)
	.go();
	}

	@Test
	public void ensureConvertForSeveralColumns() throws Exception {
	run("use dfs.tmp");
	String tableName = "parquet_table_counts";

	try {
	String newFqnColumnName = "new_fqn";
	client.alterSession(ExecConstants.IMPLICIT_FQN_COLUMN_LABEL, newFqnColumnName);
	run("create table %s as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
	run("refresh table metadata %s", tableName);

	String sql = String.format("select\n" +
	"count(%s) as implicit_count,\n" +
	"count(*) as star_count,\n" +
	"count(col_int) as int_column_count,\n" +
	"count(col_vrchr) as vrchr_column_count\n" +
	"from %s", newFqnColumnName, tableName);

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("implicit_count", "star_count", "int_column_count", "vrchr_column_count")
	.baselineValues(6L, 6L, 2L, 3L)
	.go();

	} finally {
	client.resetSession(ExecConstants.IMPLICIT_FQN_COLUMN_LABEL);
	run("drop table if exists %s", tableName);
	}
	}

	@Test
	public void testCorrectCountWithMissingStatistics() throws Exception {
	run("use dfs.tmp");
	String tableName = "wide_str_table";
	try {
	// table will contain two partitions: one - with null value, second - with non null value
	run("create table %s partition by (col_str) as select * from cp.`parquet/wide_string.parquet`", tableName);

	String sql = String.format("select count(col_str) as cnt_str, count(*) as cnt_total from %s", tableName);

	// direct scan should not be applied since we don't have statistics
	queryBuilder()
	.sql(sql)
	.planMatcher()
	.exclude("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("cnt_str", "cnt_total")
	.baselineValues(1L, 2L)
	.go();
	} finally {
	run("drop table if exists %s", tableName);
	}
	}

	@Test
	public void testCountsWithMetadataCacheSummary() throws Exception {
	run("use dfs.tmp");

	String tableName = "parquet_table_counts";

	try {
	run("create table `%s/1` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
	run("create table `%s/2` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
	run("create table `%s/3` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
	run("create table `%s/4` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);

	run("refresh table metadata %s", tableName);

	String sql = String.format("select\n" +
	"count(*) as star_count,\n" +
	"count(col_int) as int_column_count,\n" +
	"count(col_vrchr) as vrchr_column_count\n" +
	"from %s", tableName);

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("numFiles = 1")
	.include("usedMetadataSummaryFile = true")
	.include("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("star_count", "int_column_count", "vrchr_column_count")
	.baselineValues(24L, 8L, 12L)
	.go();

	} finally {
	run("drop table if exists %s", tableName);
	}
	}

	@Test
	public void testCountsWithMetadataCacheSummaryAndDirPruning() throws Exception {
	run("use dfs.tmp");
	String tableName = "parquet_table_counts";

	try {
	run("create table `%s/1` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
	run("create table `%s/2` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
	run("create table `%s/3` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
	run("create table `%s/4` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);

	run("refresh table metadata %s", tableName);

	String sql = String.format("select\n" +
	"count(*) as star_count,\n" +
	"count(col_int) as int_column_count,\n" +
	"count(col_vrchr) as vrchr_column_count\n" +
	"from %s where dir0 = 1 ", tableName);

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("numFiles = 1")
	.include("usedMetadataSummaryFile = true")
	.include("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("star_count", "int_column_count", "vrchr_column_count")
	.baselineValues(6L, 2L, 3L)
	.go();

	} finally {
	run("drop table if exists %s", tableName);
	}
	}

	@Test
	public void textConvertAbsentColumn() throws Exception {
	String sql = "select count(abc) as cnt from cp.`tpch/nation.parquet`";

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("cnt")
	.baselineValues(0L)
	.go();
	}

	@Test
	public void testCountsWithWildCard() throws Exception {
	run("use dfs.tmp");
	String tableName = "parquet_table_counts";

	try {
	for (int i = 0; i < 10; i++) {
	run("create table `%s/12/%s` as select * from cp.`tpch/nation.parquet`", tableName, i);
	}
	run("create table `%s/2` as select * from cp.`tpch/nation.parquet`", tableName);
	run("create table `%s/2/11` as select * from cp.`tpch/nation.parquet`", tableName);
	run("create table `%s/2/12` as select * from cp.`tpch/nation.parquet`", tableName);

	run("refresh table metadata %s", tableName);

	String sql = String.format("select\n" +
	"count(*) as star_count\n" +
	"from `%s/1*`", tableName);

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("usedMetadataSummaryFile = false")
	.include("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("star_count")
	.baselineValues(250L)
	.go();

	} finally {
	run("drop table if exists %s", tableName);
	}
	}

	@Test
	public void testCountsForLeafDirectories() throws Exception {
	run("use dfs.tmp");
	String tableName = "parquet_table_counts";

	try {
	run("create table `%s/1` as select * from cp.`tpch/nation.parquet`", tableName);
	run("create table `%s/2` as select * from cp.`tpch/nation.parquet`", tableName);
	run("create table `%s/3` as select * from cp.`tpch/nation.parquet`", tableName);
	run("refresh table metadata %s", tableName);

	String sql = String.format("select\n" +
	"count(*) as star_count\n" +
	"from `%s/1`", tableName);

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("numFiles = 1")
	.include("usedMetadataSummaryFile = true")
	.include("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("star_count")
	.baselineValues(25L)
	.go();

	} finally {
	run("drop table if exists %s", tableName);
	}
	}

	@Test
	public void testCountsForDirWithFilesAndDir() throws Exception {
	run("use dfs.tmp");
	String tableName = "parquet_table_counts";

	try {
	run("create table `%s/1` as select * from cp.`tpch/nation.parquet`", tableName);
	run("create table `%s/1/2` as select * from cp.`tpch/nation.parquet`", tableName);
	run("create table `%s/1/3` as select * from cp.`tpch/nation.parquet`", tableName);
	run("refresh table metadata %s", tableName);

	String sql = String.format("select count(*) as star_count from `%s/1`", tableName);

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("numFiles = 1")
	.include("usedMetadataSummaryFile = true")
	.include("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("star_count")
	.baselineValues(75L)
	.go();

	} finally {
	run("drop table if exists %s", tableName);
	}
	}

	@Test
	public void testCountsWithNonExistingColumn() throws Exception {
	run("use dfs.tmp");
	String tableName = "parquet_table_counts_nonex";

	try {
	run("create table `%s/1` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
	run("create table `%s/2` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
	run("create table `%s/3` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);
	run("create table `%s/4` as select * from cp.`parquet/alltypes_optional.parquet`", tableName);

	run("refresh table metadata %s", tableName);

	String sql = String.format("select\n" +
	"count(*) as star_count,\n" +
	"count(col_int) as int_column_count,\n" +
	"count(col_vrchr) as vrchr_column_count,\n" +
	"count(non_existent) as non_existent\n" +
	"from %s", tableName);

	queryBuilder()
	.sql(sql)
	.planMatcher()
	.include("numFiles = 1")
	.include("usedMetadataSummaryFile = true")
	.include("DynamicPojoRecordReader")
	.match();

	testBuilder()
	.sqlQuery(sql)
	.unOrdered()
	.baselineColumns("star_count", "int_column_count", "vrchr_column_count", "non_existent" )
	.baselineValues(24L, 8L, 12L, 0L)
	.go();

	} finally {
	run("drop table if exists %s", tableName);
	}
	}

	@Test
	public void testSerDe() throws Exception {
	String sql = "select count(*) as cnt from cp.`tpch/nation.parquet`";
	String plan = queryBuilder().sql(sql).explainJson();
	long cnt = queryBuilder().physical(plan).singletonLong();
	assertEquals("Counts should match", 25L, cnt);
	}
	}