Re: operator does not exist: timestamp w/out timezone (similar to bug 3807)

On Sat, Apr 12, 2008 at 4:53 AM, philwalk <nomaps(at)frii(dot)com> wrote:
> CREATE TABLE
> psql:pg83bug.sql:16: ERROR: operator does not exist: timestamp without
> time zone ~~ unknown
> LINE 3: where date like '2007-01-19%';
> ^
> HINT: No operator matches the given name and argument type(s). You
> might need to add explicit type casts.

This isn't a bug. 8.3 removes a bunch of implicit casts to text which
led to unappropriate behaviours. Prior to 8.3, your timestamp was
casted to text implicitely.

Just use date_trunc
(http://www.postgresql.org/docs/current/static/functions-datetime.html):
update bugtab set
pnum = -8.6
where date_trunc('day', date) = '2007-01-19';

You can add a functional index on date_trunc('day', date) if necessary.

--
Guillaume