09d3670df3
(table or index) before trying to open its relcache entry. This fixes race conditions in which someone else commits a change to the relation's catalog entries while we are in process of doing relcache load. Problems of that ilk have been reported sporadically for years, but it was not really practical to fix until recently --- for instance, the recent addition of WAL-log support for in-place updates helped. Along the way, remove pg_am.amconcurrent: all AMs are now expected to support concurrent update.
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
/*-------------------------------------------------------------------------
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*
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* plancat.h
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* prototypes for plancat.c.
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*
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*
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* Portions Copyright (c) 1996-2006, 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/plancat.h,v 1.40 2006/07/31 20:09:05 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PLANCAT_H
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#define PLANCAT_H
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#include "nodes/relation.h"
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extern void get_relation_info(PlannerInfo *root, Oid relationObjectId, RelOptInfo *rel);
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extern bool relation_excluded_by_constraints(RelOptInfo *rel,
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RangeTblEntry *rte);
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extern List *build_physical_tlist(PlannerInfo *root, RelOptInfo *rel);
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extern List *find_inheritance_children(Oid inhparent);
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extern bool has_subclass(Oid relationId);
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extern bool has_unique_index(RelOptInfo *rel, AttrNumber attno);
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extern Selectivity restriction_selectivity(PlannerInfo *root,
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Oid operator,
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List *args,
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int varRelid);
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extern Selectivity join_selectivity(PlannerInfo *root,
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Oid operator,
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List *args,
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JoinType jointype);
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#endif /* PLANCAT_H */
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