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Arrange for the postmaster (and standalone backends, initdb, etc) to

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chdir into PGDATA and subsequently use relative paths instead of absolute
paths to access all files under PGDATA.  This seems to give a small
performance improvement, and it should make the system more robust
against naive DBAs doing things like moving a database directory that
has a live postmaster in it.  Per recent discussion.
This commit is contained in:
Tom Lane
2005-07-04 04:51:52 +00:00
parent 7504f0bae8
commit eb5949d190
27 changed files with 364 additions and 474 deletions
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4
src/include/access/slru.h
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@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/slru.h,v 1.11 2004/12/31 22:03:21 pgsql Exp $
* $PostgreSQL: pgsql/src/include/access/slru.h,v 1.12 2005/07/04 04:51:52 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -87,7 +87,7 @@ typedef struct SlruCtlData
* Dir is set during SimpleLruInit and does not change thereafter.
* Since it's always the same, it doesn't need to be in shared memory.
*/
char Dir[MAXPGPATH];
char Dir[64];
} SlruCtlData;
typedef SlruCtlData *SlruCtl;