| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Alexey V(dot) Neyman" <avn(at)any(dot)ru> |
| Cc: | pgsql-sql(at)postgresql(dot)org, pgsql-bugs(at)postgresql(dot)org |
| Subject: | Re: No subselects in constraint (bug?) |
| Date: | 2001-07-13 19:00:27 |
| Message-ID: | 17821.995050827@sss.pgh.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-bugs pgsql-sql |
"Alexey V. Neyman" <avn(at)any(dot)ru> writes:
> CREATE TABLE b (
> int4 id
> CHECK (id = ANY(SELECT a.id FROM a))
> );
> ERROR: ExecEvalExpr: unknown expression type 108
More recent versions say
ERROR: Cannot use subselect in CHECK clause
It seems to me that what you really want here is a foreign key
reference, anyway, not a handmade CHECK constraint.
regards, tom lane
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Darko Prenosil | 2001-07-13 23:13:33 | pgsql |
| Previous Message | Peter Eisentraut | 2001-07-13 18:29:39 | Re: bug report: tuple is too big |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Josh Berkus | 2001-07-13 19:01:16 | Re: You have an error in your SQL syntax near '' at line 1 |
| Previous Message | Joe Conway | 2001-07-13 18:57:19 | Re: How can we match a condition among 2 diff. tables? |