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ac61a04a71
nulls with non-nulls using proper three-valued boolean logic. Also clean up ExecQual to make it clearer that ExecQual *does* follow the SQL spec for boolean nulls. See '[BUGS] (null) != (null)' thread around 10/26/99 for more detail.
20 lines
607 B
C
20 lines
607 B
C
/*-------------------------------------------------------------------------
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*
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* nodeSubplan.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef NODESUBPLAN_H
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#define NODESUBPLAN_H
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#include "nodes/plannodes.h"
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extern Datum ExecSubPlan(SubPlan *node, List *pvar, ExprContext *econtext,
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bool *isNull);
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extern bool ExecInitSubPlan(SubPlan *node, EState *estate, Plan *parent);
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extern void ExecReScanSetParamPlan(SubPlan *node, Plan *parent);
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extern void ExecSetParamPlan(SubPlan *node);
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extern void ExecEndSubPlan(SubPlan *node);
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#endif /* NODESUBPLAN_H */
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