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Clean up plantree representation of SubPlan-s --- SubLink does not appear

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in the planned representation of a subplan at all any more, only SubPlan.
This means subselect.c doesn't scribble on its input anymore, which seems
like a good thing; and there are no longer three different possible
interpretations of a SubLink.  Simplify node naming and improve comments
in primnodes.h.  No change to stored rules, though.
This commit is contained in:
Tom Lane
2002-12-14 00:17:59 +00:00
parent 29cdab3d53
commit 2d8d66628a
24 changed files with 355 additions and 356 deletions
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5
src/include/executor/executor.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: executor.h,v 1.82 2002/12/13 19:45:56 tgl Exp $
* $Id: executor.h,v 1.83 2002/12/14 00:17:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -92,8 +92,7 @@ extern Datum ExecEvalExpr(ExprState *expression, ExprContext *econtext,
extern Datum ExecEvalExprSwitchContext(ExprState *expression, ExprContext *econtext,
bool *isNull, ExprDoneCond *isDone);
extern ExprState *ExecInitExpr(Expr *node, PlanState *parent);
extern SubPlanExprState *ExecInitExprInitPlan(SubPlanExpr *node,
PlanState *parent);
extern SubPlanState *ExecInitExprInitPlan(SubPlan *node, PlanState *parent);
extern bool ExecQual(List *qual, ExprContext *econtext, bool resultForNull);
extern int ExecTargetListLength(List *targetlist);
extern int ExecCleanTargetListLength(List *targetlist);