I'd like to add the ability to use a sub-select in a CHECK constraint.
Can someone elaborate on what changes would be needed to support
this? From a (very) brief look at execMain.c, ExecEvalExpr() seems
to support subplans already, so I wouldn't *guess* it would be too
involved, but I'd appreciate a more informed assessment...
Thanks in advance,
Neil
--
Neil Conway <neilconway@rogers.com>
PGP Key ID: DB3C29FC