Package org.apache.hadoop.hive.ql.optimizer.ppr

Class Summary

ExprProcCtx	The processor context for partition pruner.
ExprProcFactory	Expression processor factory for partition pruning.
ExprProcFactory.ColumnExprProcessor	Processor for column expressions.
ExprProcFactory.DefaultExprProcessor	Processor for constants and null expressions.
ExprProcFactory.FieldExprProcessor
ExprProcFactory.FuncExprProcessor	Process function descriptors.
ExprProcFactory.GenericFuncExprProcessor	If all children are candidates and refer only to one table alias then this expr is a candidate else it is not a candidate but its children could be final candidates
ExprPrunerInfo	The processor context for partition pruner.
OpProcFactory	Operator factory for partition pruning processing of operator graph We find all the filter operators that appear just beneath the table scan operators.
OpProcFactory.DefaultPPR	Default processor which just merges its children
OpProcFactory.FilterPPR	Determines the partition pruner for the filter.
OpWalkerCtx	Context class for operator tree walker for partition pruner.
PartitionPruner	The transformation step that does partition pruning.