org.apache.drill.exec.planner.logical

Class DrillFilterItemStarReWriterRule

java.lang.Object

org.apache.drill.exec.planner.logical.DrillFilterItemStarReWriterRule

public class DrillFilterItemStarReWriterRule
extends Object

Rule will transform item star fields in filter and replaced with actual field references. This will help partition pruning and push down rules to detect fields that can be pruned or push downed. Item star operator appears when sub-select or cte with star are used as source.

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.drill.exec.planner.logical.DrillFilterItemStarReWriterRule.FilterOnScan	FILTER_ON_SCAN
static org.apache.drill.exec.planner.logical.DrillFilterItemStarReWriterRule.FilterProjectScan	FILTER_PROJECT_SCAN
static org.apache.drill.exec.planner.logical.DrillFilterItemStarReWriterRule.ProjectOnScan	PROJECT_ON_SCAN

Constructor Summary

Constructors

Constructor and Description
DrillFilterItemStarReWriterRule()

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PROJECT_ON_SCAN

public static final org.apache.drill.exec.planner.logical.DrillFilterItemStarReWriterRule.ProjectOnScan PROJECT_ON_SCAN

FILTER_ON_SCAN

public static final org.apache.drill.exec.planner.logical.DrillFilterItemStarReWriterRule.FilterOnScan FILTER_ON_SCAN

FILTER_PROJECT_SCAN

public static final org.apache.drill.exec.planner.logical.DrillFilterItemStarReWriterRule.FilterProjectScan FILTER_PROJECT_SCAN

Constructor Detail

DrillFilterItemStarReWriterRule

public DrillFilterItemStarReWriterRule()