Re: Use of 'now'

> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> >> Nothing of interest anymore, since 'current' has been removed as of 7.2.
> >> However, Thomas has yet to commit any docs updates for his recent
> >> datetime-related changes ... including that one ...
>
> > Seems it is still in there somewhere:
>
> > test=> create table bb (x timestamp default 'current', y int);
>
> Hmm. It was *supposed* to be removed entirely, but possibly what
> Thomas actually did was to continue to accept the keyword as equivalent
> to 'now'. Thomas?

[ CC'ing to hackers because this is getting into code problems. ]

Here's another inconsistency that Tatsuo found:

test=> create table ff (x time default 'current_timestamp');
ERROR: Bad time external representation 'current_timestamp'
test=> create table ff (x time default 'current');
ERROR: Bad time external representation 'current'
test=> create table ff (x time default 'now');
CREATE
test=> select current_timestamp;
timestamptz
-------------------------------
2001-11-13 22:49:50.607401-05
(1 row)

You can default a time to now, but not to current or current_timestamp.

I believe this is happening because current is implemented as special
timezones in datetime.c and timestamp.c, and current_timestamp is
implemented in gram.y, while 'now' is a function.

Anyway, looks like confusion that should be fixed.

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