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Arrange for function default arguments to be processed properly in expressions

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that are set up for execution with ExecPrepareExpr rather than going through
the full planner process.  By introducing an explicit notion of "expression
planning", this patch also lays a bit of groundwork for maybe someday
allowing sub-selects in standalone expressions.
This commit is contained in:
Tom Lane
2009-01-09 15:46:11 +00:00
parent d3706cb6d2
commit d04db37072
7 changed files with 73 additions and 21 deletions
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5
src/include/optimizer/planner.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/planner.h,v 1.46 2009/01/01 17:24:00 momjian Exp $
* $PostgreSQL: pgsql/src/include/optimizer/planner.h,v 1.47 2009/01/09 15:46:11 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -29,9 +29,12 @@ extern PlannedStmt *planner(Query *parse, int cursorOptions,
ParamListInfo boundParams);
extern PlannedStmt *standard_planner(Query *parse, int cursorOptions,
ParamListInfo boundParams);
extern Plan *subquery_planner(PlannerGlobal *glob, Query *parse,
PlannerInfo *parent_root,
bool hasRecursion, double tuple_fraction,
PlannerInfo **subroot);
extern Expr *expression_planner(Expr *expr);
#endif /* PLANNER_H */