org.apache.hadoop.hive.ql.optimizer.physical
Class BucketingSortingOpProcFactory.ExtractInferrer
java.lang.Object
org.apache.hadoop.hive.ql.optimizer.physical.BucketingSortingOpProcFactory.DefaultInferrer
org.apache.hadoop.hive.ql.optimizer.physical.BucketingSortingOpProcFactory.ExtractInferrer
- All Implemented Interfaces:
- NodeProcessor
- Enclosing class:
- BucketingSortingOpProcFactory
public static class BucketingSortingOpProcFactory.ExtractInferrer
- extends BucketingSortingOpProcFactory.DefaultInferrer
- implements NodeProcessor
Processor for Extract operator.
Only handles the case where the tree looks like
ReduceSinkOperator --- ExtractOperator
This is the case for distribute by, sort by, order by, cluster by operators.
BucketingSortingOpProcFactory.ExtractInferrer
public BucketingSortingOpProcFactory.ExtractInferrer()
process
public Object process(Node nd,
Stack<Node> stack,
NodeProcessorCtx procCtx,
Object... nodeOutputs)
throws SemanticException
- Description copied from interface:
NodeProcessor
- Generic process for all ops that don't have specific implementations.
- Specified by:
process
in interface NodeProcessor
- Overrides:
process
in class BucketingSortingOpProcFactory.DefaultInferrer
- Parameters:
nd
- operator to processprocCtx
- operator processor contextnodeOutputs
- A variable argument list of outputs from other nodes in the walk
- Returns:
- Object to be returned by the process call
- Throws:
SemanticException
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