VACUUM ANALYZE - Mailing list pgsql-novice

From David Anthony
Subject VACUUM ANALYZE
Date
Msg-id 8427C66A66C9D511B4B80090271B275D3B13E6@mail.inet.co.za
Whole thread Raw
Responses Re: VACUUM ANALYZE  (Marc Spitzer <marc@oscar.eng.cv.net>)
Re: VACUUM ANALYZE  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-novice
Hi

I have a postgresql database with about 5 tables. On a nightly basis, all
the records in all 5 tables are deleted and repopulated with fresh data.
Some of the tables have between 30 000 and 80 000 records. I have been
looking through the docs to try and work out how best to optimize the
database as I have noticed a definite lag in response as the database grows.

1. I have placed indexes on the columns that are used in searching
2. when deleting all the records from a table I use TRUNCATE instead of
DELETE
3. the repopulation occurs via a perl script and at the end of the script I
run VACUUM ANALYZE on the database.

Any other things I should look at? Also, is there a way to check when the
last time VACUUM ANALYZE was run on the db. I am unsure whether the perl
script is running the command successfully.

Thanks
Dave

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