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Remove global variable scanCommandId in favor of storing a command ID

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in snapshots, per my proposal of a few days ago.  Also, tweak heapam.c
routines (heap_insert, heap_update, heap_delete, heap_mark4update) to
be passed the command ID to use, instead of doing GetCurrentCommandID.
For catalog updates they'll still get passed current command ID, but
for updates generated from the main executor they'll get passed the
command ID saved in the snapshot the query is using.  This should fix
some corner cases associated with functions and triggers that advance
current command ID while an outer query is still in progress.
This commit is contained in:
Tom Lane
2002-05-21 22:05:55 +00:00
parent 0a2682445e
commit 959e61e917
37 changed files with 191 additions and 235 deletions
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8
src/backend/commands/user.c
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@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Header: /cvsroot/pgsql/src/backend/commands/user.c,v 1.102 2002/05/20 23:51:42 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/user.c,v 1.103 2002/05/21 22:05:54 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -596,7 +596,7 @@ CreateUser(CreateUserStmt *stmt)
/*
* Insert new record in the pg_shadow table
*/
heap_insert(pg_shadow_rel, tuple);
simple_heap_insert(pg_shadow_rel, tuple);
/*
* Update indexes
@@ -1213,9 +1213,9 @@ CreateGroup(CreateGroupStmt *stmt)
tuple = heap_formtuple(pg_group_dsc, new_record, new_record_nulls);
/*
* Insert a new record in the pg_group_table
* Insert a new record in the pg_group table
*/
heap_insert(pg_group_rel, tuple);
simple_heap_insert(pg_group_rel, tuple);
/*
* Update indexes