Rod Taylor <[EMAIL PROTECTED]> writes: > On Thu, 2005-06-23 at 22:27 +0200, Markus Bertheau wrote: >> Dnia 23-06-2005, czw o godzinie 16:19 -0400, Rod Taylor napisa³(a): >>> The data types are different, as one has the timestamp to (6) decimal >>> places after seconds. >> >> That's strange. I explicitly specified ::TIMESTAMP on both the view and >> the table. Is that not unambiguous?
> LOCALTIMESTAMP is probably more specific, so it folds the length in. > If you SELECT 'abc'::varchar(6)::varchar, the end type is varchar(6). Yeah, this is exactly what's happening --- if you look at gram.y, LOCALTIMESTAMP is expanded to "'now'::text::timestamp(6)". I am unconvinced that the (6) is a very good idea though. The code says /* SQL99 mandates a default precision of 6 for timestamp. * Also, that is about as precise as we will get since * we are using a microsecond time interface. * - thomas 2001-12-07 */ d->typmod = 6; but it doesn't seem to me to follow from what the spec says that we need to explicitly cast the result of now() to six places. As long as it's coming from gettimeofday it can't have more than 6 places anyway, and so we might as well save the extra coercion step. (The parser *will* tack on a separate coercion function call when presented with this parse tree.) In short, I'm inclined to remove the above-quoted lines, and similarly for CURRENT_TIME, CURRENT_TIMESTAMP, and LOCALTIME. Thoughts? regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster