From: | Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | hackers(at)postgreSQL(dot)org (PostgreSQL-development) |
Subject: | Use of multiple || and precidence |
Date: | 1999-03-17 20:57:50 |
Message-ID: | 199903172057.PAA16301@candle.pha.pa.us |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
I have made a change so that all operators except "+-*/%" are now
left-associative, rather than being non-associative:
select 'a' || 'b' || 'c';
The old code does:
test=> select 'a' || 'b' || 'c';
ERROR: parser: parse error at or near "||"
Is this a problem for people? It will now not complain about missing
parens, but left-associate all these operations. Any problems with
that?
The code still associates "+-*/%" so that "*/%" is done first, then
"+-".
--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
From | Date | Subject | |
---|---|---|---|
Next Message | Jason Venner | 1999-03-17 21:09:59 | What does this mean: SIAssignBackendId: discarding tag 2147483505 in 6.3.4 |
Previous Message | Terry Mackintosh | 1999-03-17 19:34:14 | Re: [Fwd: Re: [HACKERS] Sequences....] |