On Fri, Sep 3, 2010 at 4:28 AM, Tatsuo Ishii <is...@postgresql.org> wrote: > Is there any way to use regclass without having ERROR? > > pgpool-II needs to find the oid from table name and for the purpose it > issues something like "SELECT 'table_name'::regproc::oid". Problem is, > if the table does not exist, an error occured and the transaction > aborts. Ideally if the table does not exist, the SELECT returns 0 > (InvalidOid). > > Any idea?
You can write a query against the system catalog tables. Or you could install a function that wraps the regclass cast in an exception handler. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise Postgres Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
