Re: TRIGGER with WHEN clause

Itagaki Takahiro <itagaki.takahiro@oss.ntt.co.jp> writes:
> [ TRIGGER WHEN patch ]

Applied with assorted revisions.  AFAICT the system column issue is only
a problem for NEW references in BEFORE triggers --- those columns do
read correctly in OLD, and all the time in AFTER triggers.  I revised
the parsing logic to enforce that.  The patch also missed establishing
dependencies for stuff referenced in the WHEN expression, and there were
a few other minor problems.

			regards, tom lane