| From: | "Gauthier, Dave" <dave(dot)gauthier(at)intel(dot)com> |
|---|---|
| To: | "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Pulling data from a constraint def |
| Date: | 2010-05-12 01:38:59 |
| Message-ID: | 482E80323A35A54498B8B70FF2B8798004586FA50C@azsmsx504.amr.corp.intel.com |
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| Lists: | pgsql-general |
Hi:
I have a constraint defined on a table....
constraint design_style_is_invalid check (design_style in ('rls','sdp','rf','ssa','rom','rpt','analog','sdprpt','clkdist','global')),
Is there a way to get the valid values in the list from the metadata somehow? Specifically, when someone hits this constraint, I want to not oonly tell them they entered an invalid value, but give them the list of valid choices at the same time.
I'd rather not put these in a table and implement with a foreogn key constraint for performance reasons. (Does that make sense?)
-dave
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