On 2014-09-06 7:27 AM, Pavel Stehule wrote:
2014-09-05 14:35 GMT+02:00 Jan Wieck <j...@wi3ck.info>:
Adding a WHEN clause to RAISE would have the benefit of not needing any
new keywords at all.
RAISE EXCEPTION 'format' [, expr ...] WHEN row_count <> 1;
It was one my older proposal.
Can we find a agreement there?
I find:
1) The syntax less readable than IF row_count <> 1 THEN RAISE
EXCEPTION ..; END IF;
2) It needless to require the user to specify an error message for
every assertion.
3) Allowing these to be disabled would be weird (though I might be
the only one who wants that feature at this point).
4) It would also be weird to display the parameters passed to the
WHEN clause like I suggested here:
http://www.postgresql.org/message-id/54096ba4.5030...@joh.to . I think
that's a crucial part of the feature.
So at least the vote isn't unanimous: -1 from me.
.marko
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