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| <div class="subTitle">org.apache.drill.exec.planner.common</div> |
| <h2 title="Class DrillStatsTable" class="title">Class DrillStatsTable</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <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> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.drill.exec.planner.common.DrillStatsTable</li> |
| </ul> |
| </li> |
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| <div class="description"> |
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| <pre>public class <span class="typeNameLabel">DrillStatsTable</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Wraps the stats table info including schema and tableName. Also materializes stats from storage |
| and keeps them in memory.</div> |
| </li> |
| </ul> |
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| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.ColumnStatistics.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.ColumnStatistics</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.ColumnStatistics_v1.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.ColumnStatistics_v1</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.DirectoryStatistics.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.DirectoryStatistics</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.DirectoryStatistics_v0.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.DirectoryStatistics_v0</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.DirectoryStatistics_v1.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.DirectoryStatistics_v1</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.Statistics_v0.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.Statistics_v0</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.Statistics_v1.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.Statistics_v1</a></span></code> |
| <div class="block">Struct which contains the statistics for the entire directory structure</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.STATS_VERSION.html" title="enum in org.apache.drill.exec.planner.common">DrillStatsTable.STATS_VERSION</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.TableStatistics.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.TableStatistics</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
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| <h3>Field Summary</h3> |
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| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.STATS_VERSION.html" title="enum in org.apache.drill.exec.planner.common">DrillStatsTable.STATS_VERSION</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#CURRENT_VERSION">CURRENT_VERSION</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#NUM_HISTOGRAM_BUCKETS">NUM_HISTOGRAM_BUCKETS</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| <h3>Constructor Summary</h3> |
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| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <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/planner/common/DrillStatsTable.html#DrillStatsTable-org.apache.drill.exec.planner.common.DrillStatsTable.TableStatistics-">DrillStatsTable</a></span>(<a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.TableStatistics.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.TableStatistics</a> statistics)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#DrillStatsTable-org.apache.drill.exec.planner.logical.DrillTable-java.lang.String-java.lang.String-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.FileSystem-">DrillStatsTable</a></span>(<a href="../../../../../../org/apache/drill/exec/planner/logical/DrillTable.html" title="class in org.apache.drill.exec.planner.logical">DrillTable</a> table, |
| <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> schemaName, |
| <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> tableName, |
| org.apache.hadoop.fs.Path tablePath, |
| org.apache.hadoop.fs.FileSystem fs)</code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </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>static <a href="../../../../../../org/apache/drill/exec/physical/PhysicalPlan.html" title="class in org.apache.drill.exec.physical">PhysicalPlan</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#direct-org.apache.drill.exec.ops.QueryContext-boolean-java.lang.String-java.lang.Object...-">direct</a></span>(<a href="../../../../../../org/apache/drill/exec/ops/QueryContext.html" title="class in org.apache.drill.exec.ops">QueryContext</a> context, |
| boolean outcome, |
| <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> message, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>... values)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.TableStatistics.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.TableStatistics</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#generateDirectoryStructure-java.lang.String-java.util.List-">generateDirectoryStructure</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> dirComputedTime, |
| <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><<a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.ColumnStatistics.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.ColumnStatistics</a>> columnStatisticsList)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#getColumns--">getColumns</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <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><<a href="../../../../../../org/apache/drill/metastore/statistics/StatisticsHolder.html" title="class in org.apache.drill.metastore.statistics">StatisticsHolder</a><?>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#getEstimatedColumnStats-org.apache.drill.exec.planner.common.DrillStatsTable-org.apache.drill.common.expression.SchemaPath-">getEstimatedColumnStats</a></span>(<a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable</a> statsProvider, |
| <a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a> fieldName)</code> |
| <div class="block">Returns list of <a href="../../../../../../org/apache/drill/metastore/statistics/StatisticsKind.html" title="interface in org.apache.drill.metastore.statistics"><code>StatisticsKind</code></a> and statistics values obtained from specified <a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html" title="class in org.apache.drill.exec.planner.common"><code>DrillStatsTable</code></a> for specified column.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static <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><<a href="../../../../../../org/apache/drill/metastore/statistics/StatisticsHolder.html" title="class in org.apache.drill.metastore.statistics">StatisticsHolder</a><?>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#getEstimatedTableStats-org.apache.drill.exec.planner.common.DrillStatsTable-">getEstimatedTableStats</a></span>(<a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable</a> statsProvider)</code> |
| <div class="block">Returns list of <a href="../../../../../../org/apache/drill/metastore/statistics/StatisticsKind.html" title="interface in org.apache.drill.metastore.statistics"><code>StatisticsKind</code></a> and statistics values obtained from specified <a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html" title="class in org.apache.drill.exec.planner.common"><code>DrillStatsTable</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/drill/metastore/statistics/Histogram.html" title="interface in org.apache.drill.metastore.statistics">Histogram</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#getHistogram-org.apache.drill.common.expression.SchemaPath-">getHistogram</a></span>(<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a> column)</code> |
| <div class="block">Get the histogram of a given column.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static com.fasterxml.jackson.databind.ObjectMapper</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#getMapper--">getMapper</a></span>()</code> |
| <div class="block">This method returns the statistics (de)serializer which can be used to (de)/serialize the |
| <a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.TableStatistics.html" title="class in org.apache.drill.exec.planner.common"><code>DrillStatsTable.TableStatistics</code></a> from/to JSON</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#getNdv-org.apache.drill.common.expression.SchemaPath-">getNdv</a></span>(<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a> col)</code> |
| <div class="block">Get the approximate number of distinct values of given column.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#getNNRowCount-org.apache.drill.common.expression.SchemaPath-">getNNRowCount</a></span>(<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a> col)</code> |
| <div class="block">Get non-null rowcount for the column If stats are not present for the given column, a null is returned.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#getRowCount--">getRowCount</a></span>()</code> |
| <div class="block">Get row count of the table.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <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> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#getSchemaName--">getSchemaName</a></span>()</code> </td> |
| </tr> |
| <tr id="i11" 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> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#getTableName--">getTableName</a></span>()</code> </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#isMaterialized--">isMaterialized</a></span>()</code> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#materialize--">materialize</a></span>()</code> |
| <div class="block">Read the stats from storage and keep them in memory.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../org/apache/drill/exec/physical/PhysicalPlan.html" title="class in org.apache.drill.exec.physical">PhysicalPlan</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#notRequired-org.apache.drill.exec.ops.QueryContext-java.lang.String-">notRequired</a></span>(<a href="../../../../../../org/apache/drill/exec/ops/QueryContext.html" title="class in org.apache.drill.exec.ops">QueryContext</a> context, |
| <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> tbl)</code> </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../org/apache/drill/exec/physical/PhysicalPlan.html" title="class in org.apache.drill.exec.physical">PhysicalPlan</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html#notSupported-org.apache.drill.exec.ops.QueryContext-java.lang.String-">notSupported</a></span>(<a href="../../../../../../org/apache/drill/exec/ops/QueryContext.html" title="class in org.apache.drill.exec.ops">QueryContext</a> context, |
| <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> tbl)</code> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
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| </a> |
| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| <li class="blockList"><a name="field.detail"> |
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| <h3>Field Detail</h3> |
| <a name="CURRENT_VERSION"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>CURRENT_VERSION</h4> |
| <pre>public static final <a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.STATS_VERSION.html" title="enum in org.apache.drill.exec.planner.common">DrillStatsTable.STATS_VERSION</a> CURRENT_VERSION</pre> |
| </li> |
| </ul> |
| <a name="NUM_HISTOGRAM_BUCKETS"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>NUM_HISTOGRAM_BUCKETS</h4> |
| <pre>public static final int NUM_HISTOGRAM_BUCKETS</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.drill.exec.planner.common.DrillStatsTable.NUM_HISTOGRAM_BUCKETS">Constant Field Values</a></dd> |
| </dl> |
| </li> |
| </ul> |
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| </ul> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a name="DrillStatsTable-org.apache.drill.exec.planner.logical.DrillTable-java.lang.String-java.lang.String-org.apache.hadoop.fs.Path-org.apache.hadoop.fs.FileSystem-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>DrillStatsTable</h4> |
| <pre>public DrillStatsTable(<a href="../../../../../../org/apache/drill/exec/planner/logical/DrillTable.html" title="class in org.apache.drill.exec.planner.logical">DrillTable</a> table, |
| <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> schemaName, |
| <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> tableName, |
| org.apache.hadoop.fs.Path tablePath, |
| org.apache.hadoop.fs.FileSystem fs)</pre> |
| </li> |
| </ul> |
| <a name="DrillStatsTable-org.apache.drill.exec.planner.common.DrillStatsTable.TableStatistics-"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>DrillStatsTable</h4> |
| <pre>public DrillStatsTable(<a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.TableStatistics.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.TableStatistics</a> statistics)</pre> |
| </li> |
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| <ul class="blockList"> |
| <li class="blockList"><a name="method.detail"> |
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| </a> |
| <h3>Method Detail</h3> |
| <a name="getSchemaName--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSchemaName</h4> |
| <pre>public <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> getSchemaName()</pre> |
| </li> |
| </ul> |
| <a name="getTableName--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getTableName</h4> |
| <pre>public <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> getTableName()</pre> |
| </li> |
| </ul> |
| <a name="isMaterialized--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isMaterialized</h4> |
| <pre>public boolean isMaterialized()</pre> |
| </li> |
| </ul> |
| <a name="getNdv-org.apache.drill.common.expression.SchemaPath-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getNdv</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a> getNdv(<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a> col)</pre> |
| <div class="block">Get the approximate number of distinct values of given column. If stats are not present for the |
| given column, a null is returned. |
| |
| Note: returned data may not be accurate. Accuracy depends on whether the table data has changed |
| after the stats are computed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>col</code> - - column for which approximate count distinct is desired</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>approximate count distinct of the column, if available. NULL otherwise.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getColumns--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getColumns</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>> getColumns()</pre> |
| </li> |
| </ul> |
| <a name="getRowCount--"> |
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| </a> |
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| <h4>getRowCount</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a> getRowCount()</pre> |
| <div class="block">Get row count of the table. Returns null if stats are not present. |
| |
| Note: returned data may not be accurate. Accuracy depends on whether the table data has |
| changed after the stats are computed.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>rowcount for the table, if available. NULL otherwise.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getNNRowCount-org.apache.drill.common.expression.SchemaPath-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getNNRowCount</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a> getNNRowCount(<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a> col)</pre> |
| <div class="block">Get non-null rowcount for the column If stats are not present for the given column, a null is returned. |
| |
| Note: returned data may not be accurate. Accuracy depends on whether the table data has changed |
| after the stats are computed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>col</code> - - column for which non-null rowcount is desired</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>non-null rowcount of the column, if available. NULL otherwise.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getHistogram-org.apache.drill.common.expression.SchemaPath-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getHistogram</h4> |
| <pre>public <a href="../../../../../../org/apache/drill/metastore/statistics/Histogram.html" title="interface in org.apache.drill.metastore.statistics">Histogram</a> getHistogram(<a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a> column)</pre> |
| <div class="block">Get the histogram of a given column. If stats are not present for the given column, |
| a null is returned. |
| <p> |
| Note: returned data may not be accurate. Accuracy depends on whether the table data has changed after the |
| stats are computed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>column</code> - path to the column whose histogram should be obtained</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Histogram for this column</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="materialize--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>materialize</h4> |
| <pre>public void materialize()</pre> |
| <div class="block">Read the stats from storage and keep them in memory.</div> |
| </li> |
| </ul> |
| <a name="generateDirectoryStructure-java.lang.String-java.util.List-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>generateDirectoryStructure</h4> |
| <pre>public static <a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.TableStatistics.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.TableStatistics</a> generateDirectoryStructure(<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> dirComputedTime, |
| <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><<a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.ColumnStatistics.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable.ColumnStatistics</a>> columnStatisticsList)</pre> |
| </li> |
| </ul> |
| <a name="direct-org.apache.drill.exec.ops.QueryContext-boolean-java.lang.String-java.lang.Object...-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>direct</h4> |
| <pre>public static <a href="../../../../../../org/apache/drill/exec/physical/PhysicalPlan.html" title="class in org.apache.drill.exec.physical">PhysicalPlan</a> direct(<a href="../../../../../../org/apache/drill/exec/ops/QueryContext.html" title="class in org.apache.drill.exec.ops">QueryContext</a> context, |
| boolean outcome, |
| <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> message, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>... values)</pre> |
| </li> |
| </ul> |
| <a name="notSupported-org.apache.drill.exec.ops.QueryContext-java.lang.String-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>notSupported</h4> |
| <pre>public static <a href="../../../../../../org/apache/drill/exec/physical/PhysicalPlan.html" title="class in org.apache.drill.exec.physical">PhysicalPlan</a> notSupported(<a href="../../../../../../org/apache/drill/exec/ops/QueryContext.html" title="class in org.apache.drill.exec.ops">QueryContext</a> context, |
| <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> tbl)</pre> |
| </li> |
| </ul> |
| <a name="notRequired-org.apache.drill.exec.ops.QueryContext-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>notRequired</h4> |
| <pre>public static <a href="../../../../../../org/apache/drill/exec/physical/PhysicalPlan.html" title="class in org.apache.drill.exec.physical">PhysicalPlan</a> notRequired(<a href="../../../../../../org/apache/drill/exec/ops/QueryContext.html" title="class in org.apache.drill.exec.ops">QueryContext</a> context, |
| <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> tbl)</pre> |
| </li> |
| </ul> |
| <a name="getMapper--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getMapper</h4> |
| <pre>public static com.fasterxml.jackson.databind.ObjectMapper getMapper()</pre> |
| <div class="block">This method returns the statistics (de)serializer which can be used to (de)/serialize the |
| <a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.TableStatistics.html" title="class in org.apache.drill.exec.planner.common"><code>DrillStatsTable.TableStatistics</code></a> from/to JSON</div> |
| </li> |
| </ul> |
| <a name="getEstimatedTableStats-org.apache.drill.exec.planner.common.DrillStatsTable-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getEstimatedTableStats</h4> |
| <pre>public static <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><<a href="../../../../../../org/apache/drill/metastore/statistics/StatisticsHolder.html" title="class in org.apache.drill.metastore.statistics">StatisticsHolder</a><?>> getEstimatedTableStats(<a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable</a> statsProvider)</pre> |
| <div class="block">Returns list of <a href="../../../../../../org/apache/drill/metastore/statistics/StatisticsKind.html" title="interface in org.apache.drill.metastore.statistics"><code>StatisticsKind</code></a> and statistics values obtained from specified <a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html" title="class in org.apache.drill.exec.planner.common"><code>DrillStatsTable</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>statsProvider</code> - the source of statistics</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>list of <a href="../../../../../../org/apache/drill/metastore/statistics/StatisticsKind.html" title="interface in org.apache.drill.metastore.statistics"><code>StatisticsKind</code></a> and statistics values</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getEstimatedColumnStats-org.apache.drill.exec.planner.common.DrillStatsTable-org.apache.drill.common.expression.SchemaPath-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>getEstimatedColumnStats</h4> |
| <pre>public static <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><<a href="../../../../../../org/apache/drill/metastore/statistics/StatisticsHolder.html" title="class in org.apache.drill.metastore.statistics">StatisticsHolder</a><?>> getEstimatedColumnStats(<a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html" title="class in org.apache.drill.exec.planner.common">DrillStatsTable</a> statsProvider, |
| <a href="../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a> fieldName)</pre> |
| <div class="block">Returns list of <a href="../../../../../../org/apache/drill/metastore/statistics/StatisticsKind.html" title="interface in org.apache.drill.metastore.statistics"><code>StatisticsKind</code></a> and statistics values obtained from specified <a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.html" title="class in org.apache.drill.exec.planner.common"><code>DrillStatsTable</code></a> for specified column.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>statsProvider</code> - the source of statistics</dd> |
| <dd><code>fieldName</code> - name of the columns whose statistics should be obtained</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>list of <a href="../../../../../../org/apache/drill/metastore/statistics/StatisticsKind.html" title="interface in org.apache.drill.metastore.statistics"><code>StatisticsKind</code></a> and statistics values</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| </div> |
| <!-- ========= END OF CLASS DATA ========= --> |
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| <div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div> |
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| <li><a href="../../../../../../org/apache/drill/exec/planner/common/DrillStatsTable.ColumnStatistics.html" title="class in org.apache.drill.exec.planner.common"><span class="typeNameLink">Next Class</span></a></li> |
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