| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Magnus Hagander <magnus(at)hagander(dot)net> |
| Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: to_timestamp() too loose? |
| Date: | 2012-08-23 13:42:18 |
| Message-ID: | 10579.1345729338@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Magnus Hagander <magnus(at)hagander(dot)net> writes:
> postgres=# select to_timestamp('2012-08-01', 'yyyy-mm-dd');
> to_timestamp
> ------------------------
> 2012-08-01 00:00:00+02
> postgres=# select to_timestamp('2012-08-00', 'yyyy-mm-dd');
> to_timestamp
> ------------------------
> 2012-08-01 00:00:00+02
> postgres=# select to_timestamp('2012-00-00', 'yyyy-mm-dd');
> to_timestamp
> ------------------------
> 2012-01-01 00:00:00+01
> Should we really convert 00 to 01?
to_timestamp is intentionally pretty loose. Personally, if I wanted
sanity checking on a date string in any common format, I would just
cast the string to timestamp(tz), and *not* use to_timestamp.
regards, tom lane
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