org.apache.pig.backend.executionengine
Interface ExecLogicalPlan
- All Superinterfaces:
- Serializable
- All Known Implementing Classes:
- LogicalPlan
public interface ExecLogicalPlan
- extends Serializable
A logical plan has a root of the operator tree.
A table of operators collects the set of operators making up a logical tree.
It is possible to navigate a logical tree by looking up the input operator
keys of the logical operator in the operator table.
getRoot
OperatorKey getRoot()
getOpTable
Map<OperatorKey,LogicalOperator> getOpTable()
explain
void explain(OutputStream out)
Copyright © ${year} The Apache Software Foundation