apidocs/org/apache/drill/exec/physical/base/AbstractGroupScan.html - drill-site - Git at Google

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 <div class="subTitle">org.apache.drill.exec.physical.base</div>
 <h2 title="Class AbstractGroupScan" class="title">Class AbstractGroupScan</h2>
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 <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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 <ul class="inheritance">
 <li><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractBase.html" title="class in org.apache.drill.exec.physical.base">org.apache.drill.exec.physical.base.AbstractBase</a></li>
 <li>
 <ul class="inheritance">
 <li>org.apache.drill.exec.physical.base.AbstractGroupScan</li>
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 <dt>All Implemented Interfaces:</dt>
 <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a>&lt;<a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalOperator.html" title="interface in org.apache.drill.exec.physical.base">PhysicalOperator</a>&gt;, <a href="../../../../../../org/apache/drill/common/graph/GraphValue.html" title="interface in org.apache.drill.common.graph">GraphValue</a>&lt;<a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalOperator.html" title="interface in org.apache.drill.exec.physical.base">PhysicalOperator</a>&gt;, <a href="../../../../../../org/apache/drill/exec/physical/base/FragmentLeaf.html" title="interface in org.apache.drill.exec.physical.base">FragmentLeaf</a>, <a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html" title="interface in org.apache.drill.exec.physical.base">GroupScan</a>, <a href="../../../../../../org/apache/drill/exec/physical/base/HasAffinity.html" title="interface in org.apache.drill.exec.physical.base">HasAffinity</a>, <a href="../../../../../../org/apache/drill/exec/physical/base/Leaf.html" title="interface in org.apache.drill.exec.physical.base">Leaf</a>, <a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalOperator.html" title="interface in org.apache.drill.exec.physical.base">PhysicalOperator</a>, <a href="../../../../../../org/apache/drill/exec/physical/base/Scan.html" title="interface in org.apache.drill.exec.physical.base">Scan</a></dd>
 </dl>
 <dl>
 <dt>Direct Known Subclasses:</dt>
 <dd><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractDbGroupScan.html" title="class in org.apache.drill.exec.physical.base">AbstractDbGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/physical/base/AbstractFileGroupScan.html" title="class in org.apache.drill.exec.physical.base">AbstractFileGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/direct/DirectGroupScan.html" title="class in org.apache.drill.exec.store.direct">DirectGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/druid/DruidGroupScan.html" title="class in org.apache.drill.exec.store.druid">DruidGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/enumerable/EnumerableGroupScan.html" title="class in org.apache.drill.exec.store.enumerable">EnumerableGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/hbase/HBaseGroupScan.html" title="class in org.apache.drill.exec.store.hbase">HBaseGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/hive/HiveScan.html" title="class in org.apache.drill.exec.store.hive">HiveScan</a>, <a href="../../../../../../org/apache/drill/exec/store/http/HttpGroupScan.html" title="class in org.apache.drill.exec.store.http">HttpGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/iceberg/IcebergGroupScan.html" title="class in org.apache.drill.exec.store.iceberg">IcebergGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/ischema/InfoSchemaGroupScan.html" title="class in org.apache.drill.exec.store.ischema">InfoSchemaGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/jdbc/JdbcGroupScan.html" title="class in org.apache.drill.exec.store.jdbc">JdbcGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/kafka/KafkaGroupScan.html" title="class in org.apache.drill.exec.store.kafka">KafkaGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/kudu/KuduGroupScan.html" title="class in org.apache.drill.exec.store.kudu">KuduGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/mock/MockGroupScanPOP.html" title="class in org.apache.drill.exec.store.mock">MockGroupScanPOP</a>, <a href="../../../../../../org/apache/drill/exec/store/mongo/MongoGroupScan.html" title="class in org.apache.drill.exec.store.mongo">MongoGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/openTSDB/OpenTSDBGroupScan.html" title="class in org.apache.drill.exec.store.openTSDB">OpenTSDBGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/phoenix/PhoenixGroupScan.html" title="class in org.apache.drill.exec.store.phoenix">PhoenixGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/splunk/SplunkGroupScan.html" title="class in org.apache.drill.exec.store.splunk">SplunkGroupScan</a>, <a href="../../../../../../org/apache/drill/exec/store/sys/SystemTableScan.html" title="class in org.apache.drill.exec.store.sys">SystemTableScan</a></dd>
 </dl>
 <hr>
 <br>
 <pre>public abstract class <span class="typeNameLabel">AbstractGroupScan</span>
 extends <a href="../../../../../../org/apache/drill/exec/physical/base/AbstractBase.html" title="class in org.apache.drill.exec.physical.base">AbstractBase</a>
 implements <a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html" title="interface in org.apache.drill.exec.physical.base">GroupScan</a></pre>
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 <h3>Fields inherited from class&nbsp;org.apache.drill.exec.physical.base.<a href="../../../../../../org/apache/drill/exec/physical/base/AbstractBase.html" title="class in org.apache.drill.exec.physical.base">AbstractBase</a></h3>
 <code><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractBase.html#INIT_ALLOCATION">INIT_ALLOCATION</a>, <a href="../../../../../../org/apache/drill/exec/physical/base/AbstractBase.html#initialAllocation">initialAllocation</a>, <a href="../../../../../../org/apache/drill/exec/physical/base/AbstractBase.html#MAX_ALLOCATION">MAX_ALLOCATION</a>, <a href="../../../../../../org/apache/drill/exec/physical/base/AbstractBase.html#maxAllocation">maxAllocation</a>, <a href="../../../../../../org/apache/drill/exec/physical/base/AbstractBase.html#userName">userName</a></code></li>
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 <h3>Fields inherited from interface&nbsp;org.apache.drill.exec.physical.base.<a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html" title="interface in org.apache.drill.exec.physical.base">GroupScan</a></h3>
 <code><a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html#ALL_COLUMNS">ALL_COLUMNS</a></code></li>
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 <h3>Constructor Summary</h3>
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 <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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 <th class="colOne" scope="col">Constructor and Description</th>
 </tr>
 <tr class="altColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#AbstractGroupScan-org.apache.drill.exec.physical.base.AbstractGroupScan-">AbstractGroupScan</a></span>(<a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html" title="class in org.apache.drill.exec.physical.base">AbstractGroupScan</a>&nbsp;that)</code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#AbstractGroupScan-java.lang.String-">AbstractGroupScan</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;userName)</code>&nbsp;</td>
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 <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Method and Description</th>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code>&lt;T,X,E extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&gt;<br>T</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#accept-org.apache.drill.exec.physical.base.PhysicalVisitor-X-">accept</a></span>(<a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalVisitor.html" title="interface in org.apache.drill.exec.physical.base">PhysicalVisitor</a>&lt;T,X,E&gt;&nbsp;physicalVisitor,
       X&nbsp;value)</code>
 <div class="block">Provides capability to build a set of output based on traversing a query graph tree.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html" title="interface in org.apache.drill.exec.physical.base">GroupScan</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#applyFilter-org.apache.drill.common.expression.LogicalExpression-org.apache.drill.exec.ops.UdfUtilities-org.apache.drill.exec.expr.fn.FunctionImplementationRegistry-org.apache.drill.exec.server.options.OptionManager-">applyFilter</a></span>(<a href="../../../../../../org/apache/drill/common/expression/LogicalExpression.html" title="interface in org.apache.drill.common.expression">LogicalExpression</a>&nbsp;filterExpr,
            <a href="../../../../../../org/apache/drill/exec/ops/UdfUtilities.html" title="interface in org.apache.drill.exec.ops">UdfUtilities</a>&nbsp;udfUtilities,
            <a href="../../../../../../org/apache/drill/exec/expr/fn/FunctionImplementationRegistry.html" title="class in org.apache.drill.exec.expr.fn">FunctionImplementationRegistry</a>&nbsp;functionImplementationRegistry,
            <a href="../../../../../../org/apache/drill/exec/server/options/OptionManager.html" title="interface in org.apache.drill.exec.server.options">OptionManager</a>&nbsp;optionManager)</code>&nbsp;</td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html" title="interface in org.apache.drill.exec.physical.base">GroupScan</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#applyLimit-int-">applyLimit</a></span>(int&nbsp;maxRecords)</code>
 <div class="block">By default, return null to indicate row count based prune is not supported.</div>
 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#canPushdownProjects-java.util.List-">canPushdownProjects</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>&gt;&nbsp;columns)</code>
 <div class="block">GroupScan should check the list of columns, and see if it could support all the columns in the list.</div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html" title="interface in org.apache.drill.exec.physical.base">GroupScan</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#clone-java.util.List-">clone</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>&gt;&nbsp;columns)</code>
 <div class="block">Returns a clone of GroupScan instance, except that the new GroupScan will use the provided list of columns .</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#enforceWidth--">enforceWidth</a></span>()</code>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
 </td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/metastore/analyze/AnalyzeInfoProvider.html" title="interface in org.apache.drill.exec.metastore.analyze">AnalyzeInfoProvider</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#getAnalyzeInfoProvider--">getAnalyzeInfoProvider</a></span>()</code>
 <div class="block">Returns <a href="../../../../../../org/apache/drill/exec/metastore/analyze/AnalyzeInfoProvider.html" title="interface in org.apache.drill.exec.metastore.analyze"><code>AnalyzeInfoProvider</code></a> instance which will be used when running ANALYZE statement.</div>
 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#getColumns--">getColumns</a></span>()</code>
 <div class="block">Returns a list of columns scanned by this group scan</div>
 </td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#getColumnValueCount-org.apache.drill.common.expression.SchemaPath-">getColumnValueCount</a></span>(<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>&nbsp;column)</code>
 <div class="block">By default, throw exception, since group scan does not have exact column value count.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/planner/fragment/DistributionAffinity.html" title="enum in org.apache.drill.exec.planner.fragment">DistributionAffinity</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#getDistributionAffinity--">getDistributionAffinity</a></span>()</code>
 <div class="block">Get distribution affinity which describes the parallelization strategy of the operator.</div>
 </td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;org.apache.hadoop.fs.Path&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#getFiles--">getFiles</a></span>()</code>
 <div class="block">Returns a collection of file names associated with this GroupScan.</div>
 </td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/drill/common/expression/LogicalExpression.html" title="interface in org.apache.drill.common.expression">LogicalExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#getFilter--">getFilter</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#getInitialAllocation--">getInitialAllocation</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i13" class="rowColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#getMaxAllocation--">getMaxAllocation</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i14" class="altColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html" title="interface in org.apache.drill.metastore.metadata">TableMetadataProvider</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#getMetadataProvider--">getMetadataProvider</a></span>()</code>
 <div class="block">Returns <a href="../../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html" title="interface in org.apache.drill.metastore.metadata"><code>TableMetadataProvider</code></a> instance which is used for providing metadata for current <a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html" title="interface in org.apache.drill.exec.physical.base"><code>GroupScan</code></a>.</div>
 </td>
 </tr>
 <tr id="i15" class="rowColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#getMinParallelizationWidth--">getMinParallelizationWidth</a></span>()</code>
 <div class="block">At minimum, the GroupScan requires these many fragments to run.</div>
 </td>
 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../../org/apache/drill/exec/physical/EndpointAffinity.html" title="class in org.apache.drill.exec.physical">EndpointAffinity</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html#getOperatorAffinity--">getOperatorAffinity</a></span>()</code>
 <div class="block">Get the list of Endpoints with associated affinities that this operator has preference for.</div>
 </td>
 </tr>
 <tr id="i17" class="rowColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
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 <td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
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 <tr id="i29" class="rowColor">
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 <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true#forEach-java.util.function.Consumer-" title="class or interface in java.lang">forEach</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true#spliterator--" title="class or interface in java.lang">spliterator</a></code></li>
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 <pre>public&nbsp;AbstractGroupScan(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;userName)</pre>
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 <pre>public&nbsp;AbstractGroupScan(<a href="../../../../../../org/apache/drill/exec/physical/base/AbstractGroupScan.html" title="class in org.apache.drill.exec.physical.base">AbstractGroupScan</a>&nbsp;that)</pre>
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 <h4>iterator</h4>
 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalOperator.html" title="interface in org.apache.drill.exec.physical.base">PhysicalOperator</a>&gt;&nbsp;iterator()</pre>
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 <h4>getOperatorAffinity</h4>
 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../../org/apache/drill/exec/physical/EndpointAffinity.html" title="class in org.apache.drill.exec.physical">EndpointAffinity</a>&gt;&nbsp;getOperatorAffinity()</pre>
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 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>List of EndpointAffinity objects.</dd>
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 <div class="block">Describes whether or not a particular physical operator can actually be executed. Most physical operators can be
  executed. However, Exchange nodes cannot be executed. In order to be executed, they must be converted into their
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 <dl>
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 <dd><code><a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalOperator.html#isExecutable--">isExecutable</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalOperator.html" title="interface in org.apache.drill.exec.physical.base">PhysicalOperator</a></code></dd>
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 <h4>accept</h4>
 <pre>public&nbsp;&lt;T,X,E extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&gt;&nbsp;T&nbsp;accept(<a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalVisitor.html" title="interface in org.apache.drill.exec.physical.base">PhysicalVisitor</a>&lt;T,X,E&gt;&nbsp;physicalVisitor,
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 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalOperator.html#accept-org.apache.drill.exec.physical.base.PhysicalVisitor-X-">PhysicalOperator</a></code></span></div>
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 <dd><code><a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalOperator.html#accept-org.apache.drill.exec.physical.base.PhysicalVisitor-X-">accept</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/base/PhysicalOperator.html" title="interface in org.apache.drill.exec.physical.base">PhysicalOperator</a></code></dd>
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 <h4>clone</h4>
 <pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html" title="interface in org.apache.drill.exec.physical.base">GroupScan</a>&nbsp;clone(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>&gt;&nbsp;columns)</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html#clone-java.util.List-">GroupScan</a></code></span></div>
 <div class="block">Returns a clone of GroupScan instance, except that the new GroupScan will use the provided list of columns .</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html#clone-java.util.List-">clone</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html" title="interface in org.apache.drill.exec.physical.base">GroupScan</a></code></dd>
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 <h4>getMinParallelizationWidth</h4>
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 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the minimum number of fragments that should run</dd>
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 <h4>getScanStats</h4>
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 <dd><code>true</code> if current group scan uses metadata obtained from the Metastore, <code>false</code> otherwise.</dd>
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 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html#getAnalyzeInfoProvider--">getAnalyzeInfoProvider</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html" title="interface in org.apache.drill.exec.physical.base">GroupScan</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd><a href="../../../../../../org/apache/drill/exec/metastore/analyze/AnalyzeInfoProvider.html" title="interface in org.apache.drill.exec.metastore.analyze"><code>AnalyzeInfoProvider</code></a> instance</dd>
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 <h4>supportsFilterPushDown</h4>
 <pre>public&nbsp;boolean&nbsp;supportsFilterPushDown()</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html#supportsFilterPushDown--">GroupScan</a></code></span></div>
 <div class="block">Checks whether this group scan supports filter push down.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html#supportsFilterPushDown--">supportsFilterPushDown</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/physical/base/GroupScan.html" title="interface in org.apache.drill.exec.physical.base">GroupScan</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd><code>true</code> if this group scan supports filter push down,
  <code>false</code> otherwise</dd>
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