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44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/*-------------------------------------------------------------------------
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*
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* rewriteManip.h
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* Querytree manipulation subroutines for query rewriter.
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*
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*
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* Portions Copyright (c) 1996-2001, 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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* $Id: rewriteManip.h,v 1.27 2001/06/13 18:56:29 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef REWRITEMANIP_H
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#define REWRITEMANIP_H
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#include "nodes/parsenodes.h"
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extern void OffsetVarNodes(Node *node, int offset, int sublevels_up);
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extern void ChangeVarNodes(Node *node, int old_varno, int new_varno,
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int sublevels_up);
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extern void IncrementVarSublevelsUp(Node *node, int delta_sublevels_up,
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int min_sublevels_up);
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extern bool rangeTableEntry_used(Node *node, int rt_index,
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int sublevels_up);
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extern bool attribute_used(Node *node, int rt_index, int attno,
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int sublevels_up);
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extern Query *getInsertSelectQuery(Query *parsetree, Query ***subquery_ptr);
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extern void AddQual(Query *parsetree, Node *qual);
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extern void AddHavingQual(Query *parsetree, Node *havingQual);
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extern void AddNotQual(Query *parsetree, Node *qual);
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extern bool checkExprHasAggs(Node *node);
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extern bool checkExprHasSubLink(Node *node);
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extern Node *ResolveNew(Node *node, int target_varno, int sublevels_up,
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List *targetlist, int event, int update_varno);
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#endif /* REWRITEMANIP_H */
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