Sometime last year, a discussion started about including visibility
metadata to avoid heap fetches during an index scan:
http://archives.postgresql.org/pgsql-patches/2007-10/msg00166.php
http://archives.postgresql.org/pgsql-patches/2008-01/msg00049.php
I think the last discussion on this was
Karl Schnaitter [EMAIL PROTECTED] writes:
Karl Schnaitter [EMAIL PROTECTED] writes:
(1) (4) require an UPDATE or DELETE to twiddle the old index tuple. Tom has
noted (in the linked message) that this is not reliable if the index has any
expression-valued columns, because it is not always
Attached is a worked-out patch for the approach proposed here:
http://archives.postgresql.org/pgsql-hackers/2008-06/msg00777.php
namely, that cache management for de-TOASTed datums is handled
by TupleTableSlots.
To avoid premature detoasting of values that we might never need, the
patch
Gregory Stark wrote:
(1) (4) require an UPDATE or DELETE to twiddle the old index tuple. Tom has
noted (in the linked message) that this is not reliable if the index has any
expression-valued columns, because it is not always possible to find the old
index entry. For this reason, the proposed
On Friday 27 June 2008 12:58:41 Richard Huxton wrote:
Richard Huxton wrote:
Richard Huxton wrote:
At present it means you can't reliably do:
DROP DATABASE foo;
pg_restore --create foo.dump
I'd then have to either hand edit the dumpall dump or wade through a
bunch of errors checking
Robert Treat wrote:
On Friday 27 June 2008 12:58:41 Richard Huxton wrote:
Am I doing something stupid here?
OK - so to get the ALTER DATABASE commands I need to dump the schema for
the entire cluster. Is that really desired behaviour?
Certainly not desired by a number of people I
Alvaro Herrera [EMAIL PROTECTED] writes:
Robert Treat wrote:
Certainly not desired by a number of people I have talked to, but I don't
have
much hope in seeing the behavoir change... perhaps someday if we get around
to merging pg_dump and pg_dumpall
I have never heard anyone say the
[ after recovering from choking... ]
Tom spot Callaway presents a vivid new image in this line:
What you're doing is analogous to using a loaded shotgun as a golf club,
and what you're suggesting is that we take the safety off, because it
interferes with your golf game.
