Class DrillFilterItemStarReWriterRule
java.lang.Object
org.apache.drill.exec.planner.logical.DrillFilterItemStarReWriterRule
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.
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Field Summary
Modifier and TypeFieldDescriptionstatic final org.apache.drill.exec.planner.logical.DrillFilterItemStarReWriterRule.FilterOnScan
static final org.apache.drill.exec.planner.logical.DrillFilterItemStarReWriterRule.FilterProjectScan
static final org.apache.drill.exec.planner.logical.DrillFilterItemStarReWriterRule.ProjectOnScan
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Constructor Summary
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Method Summary
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Field Details
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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
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Constructor Details
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DrillFilterItemStarReWriterRule
public DrillFilterItemStarReWriterRule()
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