| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> |
| Cc: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Precedence of % |
| Date: | 2005-06-04 15:55:37 |
| Message-ID: | 27481.1117900537@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> writes:
> I don't even grasp what unary modulo actually means???
At some point in the dim mists of prehistory, somebody thought it would
be cute to define prefix % as trunc() and postfix % as round(). I'm not
aware of any precedent for that; it was probably mostly an exercise in
testing out the grammar.
Now that I look, it doesn't look like these operators are documented
at all in the SGML docs, so it sure seems that removing them should be
pretty painless.
regards, tom lane
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