Обсуждение: postgres replication with sequences

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postgres replication with sequences

От
"Talvinder Matharu"
Дата:
Hi,

I have noticed that there is a bug with replicating sequences using
DBMirror.pl.  In the method sendQueryToSlaves there is a test for
PGRES_COMMAND_OK, which applies to INSERTS/UPDATES.  However, when trying to
update the sequence, you set the value by using a select "SELECT setval..."
and so the value set does not equal to PGRES_COMMAND_OK but should be tested
against PGRES_TUPLES_OK.  If you fail to do this test then sequences will
fail to be removed from the pending list within the database and as a result
there will be a queue.

Hope this is useful info.

Cheers,

Talvinder