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29 lines
1.0 KiB
C
29 lines
1.0 KiB
C
/*-------------------------------------------------------------------------
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*
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* subselect.h
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*
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* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/optimizer/subselect.h,v 1.21 2003/11/29 22:41:07 pgsql Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef SUBSELECT_H
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#define SUBSELECT_H
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#include "nodes/parsenodes.h"
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#include "nodes/plannodes.h"
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extern Index PlannerQueryLevel; /* level of current query */
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extern List *PlannerInitPlan; /* init subplans for current query */
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extern List *PlannerParamList; /* to keep track of cross-level Params */
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extern int PlannerPlanId; /* to assign unique ID to subquery plans */
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extern Node *convert_IN_to_join(Query *parse, SubLink *sublink);
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extern Node *SS_replace_correlation_vars(Node *expr);
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extern Node *SS_process_sublinks(Node *expr, bool isQual);
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extern void SS_finalize_plan(Plan *plan, List *rtable);
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#endif /* SUBSELECT_H */
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