------- Forwarded Message
Date: Tue, 19 Oct 1999 07:45:23 +1300
From: Andrew McMillan <Andrew(at)cat-it(dot)co(dot)nz>
To: Oliver Elphick <olly(at)lfix(dot)co(dot)uk>
Subject: Postgres problems with 6.4 / 6.5
I have a couple of problems with Postgres 6.5 and I'm not sure where to
put them (who to tell?).
Do you know if there is a place to notify bugs to for Postgres? I am
using the Debian packages, so I can enter them there if necessary.
Anyway, here's a brief description of the bugs I'm experiencing:
1) Doing a pg_dump and psql -f on a database I get lots of errors saying
"query buffer max length of 16384 exceeded" and then (eventually) I get
a segmentation fault. The load lines don't seem to be that large (the
full insert statement, including error, is maybe 220 bytes. It seems
that if I split the dumped file into 40-line chunks and do a vacuum
after each one, I can get the whole thing to load without the errors.
I have only tested this on Version 6.5.1.
2) I have a table with around 85 fields in it, and a cron job running
every 20 minutes which did a "SELECT INTO ..." from that table, did some
processing and then DROPped the new table. After a few days I found
that my database was around 13MB, which seemed odd. A couple of days
later it was around 17MB, and only a couple of records had been added.
Further investigation reveals that if I do a VACUUM immediately after
the DROP TABLE that things are OK, but otherwise the pg_attribute* files
in the database directory just get bigger and bigger. This is even the
case when I do a VACUUM after every second 'DROP TABLE' - for the space
to be recovered, I have to VACUUM immediately after a DROP TABLE, which
doesn't seem right somehow.
The same behaviour seems to happen on both version 6.5.1 and 6.4.3 .
If you can pass these bugs on to an appropriate person I would
appreciate it. In our company we are just starting to use Postgres and
I would like to see it becoming an important part of our repertoire.
Andrew McMillan, e-mail: Andrew(at)cat-it(dot)co(dot)nz
Catalyst IT Ltd, PO Box 10-225, Level 22, 105 The Terrace, Wellington
Me: +64 (21) 635 694, Fax: +64 (4) 499 5596, Office: +64 (4) 499 2267
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