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Make DROP TABLE rollback-able: postpone physical file delete until commit.

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(WAL logging for this is not done yet, however.)  Clean up a number of really
crufty things that are no longer needed now that DROP behaves nicely.  Make
temp table mapper do the right things when drop or rename affecting a temp
table is rolled back.  Also, remove "relation modified while in use" error
check, in favor of locking tables at first reference and holding that lock
throughout the statement.
This commit is contained in:
Tom Lane
2000-11-08 22:10:03 +00:00
parent ebe0b23690
commit 3908473c80
46 changed files with 1305 additions and 1187 deletions
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3
src/include/utils/rel.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: rel.h,v 1.41 2000/09/07 09:58:38 vadim Exp $
* $Id: rel.h,v 1.42 2000/11/08 22:10:02 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -92,7 +92,6 @@ typedef struct RelationData
uint16 rd_refcnt; /* reference count */
bool rd_myxactonly; /* rel uses the local buffer mgr */
bool rd_isnailed; /* rel is nailed in cache */
bool rd_unlinked; /* rel already unlinked or not created yet */
bool rd_indexfound; /* true if rd_indexlist is valid */
bool rd_uniqueindex; /* true if rel is a UNIQUE index */
Form_pg_am rd_am; /* AM tuple */