PostgreSQL, update existing rows with pg_restore

Posted by woky on Server Fault See other posts from Server Fault or by woky
Published on 2009-11-27T09:40:39Z Indexed on 2010/03/28 8:03 UTC
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postgresql

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dump

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restore

Hello.

I need to sync two PostgreSQL databases (some tables from development db to production db) sometimes.

So I came up with this script:

[...]
pg_dump -a -F tar -t table1 -t table2 -U user1 dbname1 | \
pg_restore -a -U user2 -d dbname2
[...]

The problem is that this works just for newly added rows. When I edit non-PK column I get constraint error and row isn't updated. For each dumped row I need to check if it exists in destination database (by PK) and if so delete it before INSERT/COPY.

Thanks for your advice.

(Previously posted on stackoverflow.com, but IMHO this is better place for this question).

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