Momjian
-1998-06-01
+1998-06-09
-->
system. This is all performed without having to allocate a lock for
every row like traditional database systems. So, basically, we no
longer are restricted by simple table-level locking;
- we have something better than row-level
- locking.
+ we have something better than row-level locking.
+
+ Another big benefit of MVCC is that
pg_dump
+ can now generate consistent backups of live, active databases, without
+ blocking active transactions.
Migration to v6.5
- A dump/restore using
pg_dump
+ A dump/restore using
pg_dump
is required for those wishing to migrate data from any
previous release of
Postgres.
+ be used to upgrade to this release because the on-disk structure
+ of the tables has changed compared to previous releases.
INET type now respects netmask for comparisons
Make VACUUM ANALYZE only use a readlock(Vadim)
Allow VIEWs on UNIONS(Jan)
+pg_dump now can generate consistent snapshots on active databases(Vadim)
Source Tree Changes
-------------------
-(1999-05-01)
+(1999-06-09)
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