reasons I outlined in pghackers a few days ago.
Also, undo someone's overly optimistic decision to reduce tuple state
checks from if (...) elog() to Asserts. If I trusted this code more,
I might think it was a good idea to disable these checks in production
installations. But I don't.
a relation's number of blocks, rather than the possibly-obsolete value
in pg_class.relpages. Scale the value in pg_class.reltuples correspondingly
to arrive at a hopefully more accurate number of rows. When pg_class
contains 0/0, estimate a tuple width from the column datatypes and divide
that into current file size to estimate number of rows. This improved
methodology allows us to jettison the ancient hacks that put bogus default
values into pg_class when a table is first created. Also, per a suggestion
from Simon, make VACUUM (but not VACUUM FULL or ANALYZE) adjust the value
it puts into pg_class.reltuples to try to represent the mean tuple density
instead of the minimal density that actually prevails just after VACUUM.
These changes alter the plans selected for certain regression tests, so
update the expected files accordingly. (I removed join_1.out because
it's not clear if it still applies; we can add back any variant versions
as they are shown to be needed.)
< * Make log_min_duration_statement output when the duration is reached rather
< than when the statement completes
<
< This prints long queries while they are running, making trouble shooting
< easier. Also, it eliminates the need for log_statement because it
< would now be the same as a log_min_duration_statement of zero.
> * Make log_min_duration_statement output when the duration is reached rather
> than when the statement completes
>
> This prints long queries while they are running, making trouble shooting
> easier. Also, it eliminates the need for log_statement because it
> would now be the same as a log_min_duration_statement of zero.
9c5
< Last updated: Mon Nov 29 23:33:09 EST 2004
> Last updated: Tue Nov 30 00:03:37 EST 2004
13a10,16
> #A hyphen, "-", marks changes that will appear in the upcoming 8.1 release.#
>
> Bracketed items, "[]", have more detail.
>
> This list contains all known PostgreSQL bugs and feature requests. If
> you would like to work on an item, please read the developer's FAQ
> first.
> * Auto-vacuum
> o Move into the backend code
> o Scan the buffer cache to find free space or use background writer
> o Use free-space map information to guide refilling
< information, either by name or offset from UTC
> information, either zone name or offset from UTC
>
> If the TIMESTAMP value is stored with a time zone name, interval
> computations should adjust based on the time zone rules, e.g. adding
> 24 hours to a timestamp would yield a different result from adding one
> day.
>
Bruce Momjian
Tom Lane
Neil Conway
Peter Eisentraut