Recently i got annoyed that psql doesn't tab complete to updatable foreign
tables.
Attached is a patch to address this. I'm using the new
pg_relation_is_updatable() function to accomplish this. The function could
also be used for the trigger based stuff in the query, but i haven't
touched this part of the query. The patch ist against HEAD, but maybe it's
worth to apply this to REL9_3_STABLE, too, but not sure what our policy is
at this state...
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Thanks
Bernd
