Package | Description |
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org.apache.hadoop.hive.ql.ppd |
Class and Description |
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ExprWalkerInfo
Context for Expression Walker for determining predicate pushdown candidates
It contains a ExprInfo object for each expression that is processed.
|
ExprWalkerInfo.ExprInfo
Information maintained for an expr while walking an expr tree.
|
OpProcFactory.DefaultPPD
Default processor which just merges its children.
|
OpProcFactory.FilterPPD
Determines the push down predicates in its where expression and then
combines it with the push down predicates that are passed from its children.
|
OpProcFactory.JoinerPPD
Determines predicates for which alias can be pushed to it's parents.
|
OpProcFactory.ScriptPPD
Processor for Script Operator Prevents any predicates being pushed.
|
OpWalkerInfo
Context class for operator walker of predicate pushdown.
|
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