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Make it possible to execute crashed CREATE/DROP commands again.

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Now indexes of pg_class and pg_type are unique indexes
and guarantee the uniqueness of correponding attributes.
heap_create() was changed to take another boolean parameter
which allows to postpone the creation of disk file.
The name of rd_nonameunlinked was changed to rd_unlinked.
It is used generally(not only for noname relations) now.
Requires initdb.
This commit is contained in:
Hiroshi Inoue
1999-11-04 08:01:09 +00:00
parent a2c834f709
commit 2e2189a568
14 changed files with 156 additions and 58 deletions
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5
src/backend/storage/smgr/smgr.c
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@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/smgr/smgr.c,v 1.29 1999/09/02 02:57:49 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/smgr/smgr.c,v 1.30 1999/11/04 08:01:01 inoue Exp $
*
*-------------------------------------------------------------------------
*/
@@ -182,7 +182,8 @@ smgropen(int16 which, Relation reln)
{
int fd;
if ((fd = (*(smgrsw[which].smgr_open)) (reln)) < 0)
if ((fd = (*(smgrsw[which].smgr_open)) (reln)) < 0 &&
!reln->rd_unlinked)
elog(ERROR, "cannot open %s", reln->rd_rel->relname.data);
return fd;