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Initial MVCC code.

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New code for locking buffer' context.
This commit is contained in:
Vadim B. Mikheev
1998-12-15 12:47:01 +00:00
parent c5a27161a1
commit 3f7fbf85dc
65 changed files with 1391 additions and 1282 deletions
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4
src/backend/commands/dbcommands.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/dbcommands.c,v 1.27 1998/12/14 05:18:43 scrappy Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/dbcommands.c,v 1.28 1998/12/15 12:45:55 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -235,7 +235,7 @@ check_permissions(char *command,
* delays when multiple 'createdb's or 'destroydb's are run simult.
* -mer 7/3/91
*/
RelationSetLockForWrite(dbrel);
LockRelation(dbrel, AccessExclusiveLock);
dbtup = get_pg_dbtup(command, dbname, dbrel);
dbfound = HeapTupleIsValid(dbtup);