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Commitd43b085

Browse files
committed
Separate snapshot management code from tuple visibility code, create a
snapmgmt.c file for the former. The header files have also been reorganizedin three parts: the most basic snapshot definitions are now in a new filesnapshot.h, and the also new snapmgmt.h keeps the definitions for snapmgmt.c.tqual.h has been reduced to the bare minimum.This patch is just a first step towards managing live snapshots within atransaction; there is no functionality change.Per my proposal to pgsql-patches on 20080318191940.GB27458@alvh.no-ip.org andsubsequent discussion.
1 parent2d7705e commitd43b085

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41 files changed

+345
-258
lines changed

‎src/backend/access/heap/heapam.c

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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.251 2008/03/08 21:57:59 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.252 2008/03/26 16:20:46 alvherre Exp $
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*
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*
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* INTERFACE ROUTINES
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#include"utils/inval.h"
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#include"utils/lsyscache.h"
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#include"utils/relcache.h"
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#include"utils/snapmgmt.h"
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#include"utils/syscache.h"
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‎src/backend/access/index/indexam.c

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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/access/index/indexam.c,v 1.101 2008/01/01 19:45:46momjian Exp $
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* $PostgreSQL: pgsql/src/backend/access/index/indexam.c,v 1.102 2008/03/26 16:20:46alvherre Exp $
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*
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* INTERFACE ROUTINES
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*index_open- open an index relation by relation OID
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#include"access/transam.h"
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#include"pgstat.h"
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#include"utils/relcache.h"
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#include"utils/snapmgmt.h"
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/* ----------------------------------------------------------------

‎src/backend/access/nbtree/nbtpage.c

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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/access/nbtree/nbtpage.c,v 1.106 2008/01/01 19:45:46momjian Exp $
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* $PostgreSQL: pgsql/src/backend/access/nbtree/nbtpage.c,v 1.107 2008/03/26 16:20:46alvherre Exp $
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*
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*NOTES
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* Postgres btree pages look like ordinary relation pages.The opaque
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#include"storage/freespace.h"
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#include"storage/lmgr.h"
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#include"utils/inval.h"
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#include"utils/snapmgmt.h"
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/*

‎src/backend/access/transam/subtrans.c

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* Portions Copyright (c) 1996-2008, 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/backend/access/transam/subtrans.c,v 1.20 2008/01/01 19:45:48 momjian Exp $
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* $PostgreSQL: pgsql/src/backend/access/transam/subtrans.c,v 1.21 2008/03/26 16:20:46 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -31,7 +31,7 @@
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#include"access/slru.h"
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#include"access/subtrans.h"
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#include"access/transam.h"
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#include"utils/tqual.h"
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#include"utils/snapmgmt.h"
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/*

‎src/backend/access/transam/transam.c

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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/access/transam/transam.c,v 1.74 2008/03/11 20:20:35 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/access/transam/transam.c,v 1.75 2008/03/26 16:20:46 alvherre Exp $
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*
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* NOTES
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* This file contains the high level access-method interface to the
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#include"access/clog.h"
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#include"access/subtrans.h"
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#include"access/transam.h"
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#include"utils/tqual.h"
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#include"utils/snapmgmt.h"
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/*

‎src/backend/access/transam/xact.c

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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.260 2008/03/17 19:44:41 petere Exp $
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* $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.261 2008/03/26 16:20:46 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"utils/inval.h"
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#include"utils/memutils.h"
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#include"utils/relcache.h"
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#include"utils/snapmgmt.h"
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#include"utils/xml.h"
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#include"pg_trace.h"
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‎src/backend/catalog/catalog.c

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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/catalog/catalog.c,v 1.73 2008/02/20 17:44:09 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/catalog/catalog.c,v 1.74 2008/03/26 16:20:46 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"storage/fd.h"
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#include"utils/fmgroids.h"
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#include"utils/relcache.h"
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#include"utils/tqual.h"
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#defineOIDCHARS10/* max chars printed by %u */

‎src/backend/catalog/heap.c

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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/catalog/heap.c,v 1.328 2008/03/25 22:42:42 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/catalog/heap.c,v 1.329 2008/03/26 16:20:46 alvherre Exp $
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*
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*
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* INTERFACE ROUTINES
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#include"utils/lsyscache.h"
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#include"utils/relcache.h"
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#include"utils/syscache.h"
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#include"utils/snapmgmt.h"
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staticvoidAddNewRelationTuple(Relationpg_class_desc,

‎src/backend/catalog/index.c

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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/catalog/index.c,v 1.293 2008/03/25 22:42:42 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/catalog/index.c,v 1.294 2008/03/26 16:20:46 alvherre Exp $
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*
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*
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* INTERFACE ROUTINES
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#include"utils/relcache.h"
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#include"utils/syscache.h"
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#include"utils/tuplesort.h"
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#include"utils/snapmgmt.h"
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/* state info for validate_index bulkdelete callback */

‎src/backend/commands/cluster.c

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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/commands/cluster.c,v 1.169 2008/01/30 19:46:48 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/commands/cluster.c,v 1.170 2008/03/26 16:20:46 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"utils/lsyscache.h"
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#include"utils/memutils.h"
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#include"utils/relcache.h"
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#include"utils/snapmgmt.h"
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#include"utils/syscache.h"
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‎src/backend/commands/copy.c

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* $PostgreSQL: pgsql/src/backend/commands/copy.c,v 1.296 2008/03/08 01:16:26 adunstan Exp $
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* $PostgreSQL: pgsql/src/backend/commands/copy.c,v 1.297 2008/03/2616:20:46 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"utils/builtins.h"
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#include"utils/lsyscache.h"
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#include"utils/memutils.h"
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#include"utils/snapmgmt.h"
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#defineISOCTAL(c) (((c) >= '0') && ((c) <= '7'))

‎src/backend/commands/explain.c

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* Portions Copyright (c) 1994-5, Regents of the University of California
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* $PostgreSQL: pgsql/src/backend/commands/explain.c,v 1.169 2008/01/01 19:45:49 momjian Exp $
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* $PostgreSQL: pgsql/src/backend/commands/explain.c,v 1.170 2008/03/26 16:20:46 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"utils/guc.h"
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#include"utils/lsyscache.h"
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#include"utils/tuplesort.h"
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#include"utils/snapmgmt.h"
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/* Hook for plugins to get control in ExplainOneQuery() */

‎src/backend/commands/indexcmds.c

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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/commands/indexcmds.c,v 1.171 2008/02/07 17:09:51 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/commands/indexcmds.c,v 1.172 2008/03/26 16:20:46 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"utils/lsyscache.h"
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#include"utils/memutils.h"
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#include"utils/relcache.h"
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#include"utils/snapmgmt.h"
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#include"utils/syscache.h"
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‎src/backend/commands/portalcmds.c

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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/commands/portalcmds.c,v 1.70 2008/03/2020:05:56 alvherre Exp $
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* $PostgreSQL: pgsql/src/backend/commands/portalcmds.c,v 1.71 2008/03/26 16:20:46 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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#include"executor/executor.h"
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#include"tcop/pquery.h"
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#include"utils/memutils.h"
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#include"utils/snapmgmt.h"
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/*

‎src/backend/commands/prepare.c

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* Copyright (c) 2002-2008, PostgreSQL Global Development Group
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.82 2008/03/25 22:42:42 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.83 2008/03/26 16:20:46 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"tcop/utility.h"
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#include"utils/builtins.h"
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#include"utils/memutils.h"
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#include"utils/snapmgmt.h"
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/*

‎src/backend/commands/tablecmds.c

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* $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.244 2008/03/25 22:42:42 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.245 2008/03/26 16:20:47 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"utils/lsyscache.h"
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#include"utils/memutils.h"
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#include"utils/relcache.h"
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#include"utils/snapmgmt.h"
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#include"utils/syscache.h"
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‎src/backend/commands/trigger.c

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* Portions Copyright (c) 1994, Regents of the University of California
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* $PostgreSQL: pgsql/src/backend/commands/trigger.c,v 1.227 2008/01/02 23:34:42 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/commands/trigger.c,v 1.228 2008/03/26 16:20:47 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"utils/inval.h"
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#include"utils/lsyscache.h"
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#include"utils/memutils.h"
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#include"utils/snapmgmt.h"
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#include"utils/syscache.h"
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‎src/backend/commands/vacuum.c

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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.368 2008/03/19 14:18:21 alvherre Exp $
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* $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.369 2008/03/26 16:20:47 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"utils/memutils.h"
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#include"utils/pg_rusage.h"
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#include"utils/relcache.h"
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#include"utils/snapmgmt.h"
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#include"utils/syscache.h"
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#include"pgstat.h"
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‎src/backend/commands/variable.c

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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/commands/variable.c,v 1.125 2008/01/03 21:23:15 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/commands/variable.c,v 1.126 2008/03/26 16:20:47 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"utils/acl.h"
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#include"utils/builtins.h"
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#include"utils/syscache.h"
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#include"utils/tqual.h"
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#include"utils/snapmgmt.h"
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#include"mb/pg_wchar.h"
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/*

‎src/backend/executor/functions.c

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* $PostgreSQL: pgsql/src/backend/executor/functions.c,v 1.122 2008/03/25 22:42:43 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/executor/functions.c,v 1.123 2008/03/26 16:20:47 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"utils/builtins.h"
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#include"utils/datum.h"
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#include"utils/lsyscache.h"
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#include"utils/snapmgmt.h"
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#include"utils/syscache.h"
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#include"utils/typcache.h"
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‎src/backend/executor/nodeBitmapHeapscan.c

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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/executor/nodeBitmapHeapscan.c,v 1.22 2008/01/01 19:45:49 momjian Exp $
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* $PostgreSQL: pgsql/src/backend/executor/nodeBitmapHeapscan.c,v 1.23 2008/03/26 16:20:47 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include"executor/nodeBitmapHeapscan.h"
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#include"pgstat.h"
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#include"utils/memutils.h"
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#include"utils/snapmgmt.h"
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staticTupleTableSlot*BitmapHeapNext(BitmapHeapScanState*node);

‎src/backend/executor/spi.c

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* $PostgreSQL: pgsql/src/backend/executor/spi.c,v 1.189 2008/03/2020:05:56 alvherre Exp $
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* $PostgreSQL: pgsql/src/backend/executor/spi.c,v 1.190 2008/03/26 16:20:47 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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#include"executor/spi_priv.h"
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#include"utils/lsyscache.h"
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#include"utils/memutils.h"
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‎src/backend/optimizer/util/plancat.c

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* $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.141 2008/03/1520:46:31 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.142 2008/03/26 16:20:47 alvherre Exp $
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*
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*-------------------------------------------------------------------------
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#include"utils/fmgroids.h"
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#include"utils/lsyscache.h"
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#include"utils/relcache.h"
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#include"utils/snapmgmt.h"
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#include"utils/syscache.h"
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#include"catalog/catalog.h"
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#include"miscadmin.h"

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