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authorTom Lane <tgl@sss.pgh.pa.us>2006-11-05 22:42:10 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2006-11-05 22:42:10 +0000
commit48188e1621bb6711e7d092bee48523b18cd80177 (patch)
tree524459ab58f8740a23efa7b7b521833646c678ba /src/include/libpq/hba.h
parent10c70b86023001dc6d9028737afc97850b86e58f (diff)
downloadpostgresql-48188e1621bb6711e7d092bee48523b18cd80177.tar.gz
Fix recently-understood problems with handling of XID freezing, particularly
in PITR scenarios. We now WAL-log the replacement of old XIDs with FrozenTransactionId, so that such replacement is guaranteed to propagate to PITR slave databases. Also, rather than relying on hint-bit updates to be preserved, pg_clog is not truncated until all instances of an XID are known to have been replaced by FrozenTransactionId. Add new GUC variables and pg_autovacuum columns to allow management of the freezing policy, so that users can trade off the size of pg_clog against the amount of freezing work done. Revise the already-existing code that forces autovacuum of tables approaching the wraparound point to make it more bulletproof; also, revise the autovacuum logic so that anti-wraparound vacuuming is done per-table rather than per-database. initdb forced because of changes in pg_class, pg_database, and pg_autovacuum catalogs. Heikki Linnakangas, Simon Riggs, and Tom Lane.
Diffstat (limited to 'src/include/libpq/hba.h')
-rw-r--r--src/include/libpq/hba.h5
1 files changed, 2 insertions, 3 deletions
diff --git a/src/include/libpq/hba.h b/src/include/libpq/hba.h
index eb8539f139..155db7314d 100644
--- a/src/include/libpq/hba.h
+++ b/src/include/libpq/hba.h
@@ -4,7 +4,7 @@
* Interface to hba.c
*
*
- * $PostgreSQL: pgsql/src/include/libpq/hba.h,v 1.44 2006/10/04 00:30:08 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/libpq/hba.h,v 1.45 2006/11/05 22:42:10 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -40,7 +40,6 @@ extern void load_role(void);
extern int hba_getauthmethod(hbaPort *port);
extern int authident(hbaPort *port);
extern bool read_pg_database_line(FILE *fp, char *dbname, Oid *dboid,
- Oid *dbtablespace, TransactionId *dbminxid,
- TransactionId *dbvacuumxid);
+ Oid *dbtablespace, TransactionId *dbfrozenxid);
#endif /* HBA_H */