From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Roy Badami <roy(at)gnomon(dot)org(dot)uk> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-bugs(at)postgresql(dot)org |
Subject: | Re: BUG #1517: SQL interval syntax is accepted by the parser, |
Date: | 2005-03-19 14:59:37 |
Message-ID: | 200503191459.j2JExbE11317@candle.pha.pa.us |
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Lists: | pgsql-bugs |
Roy Badami wrote:
>
> Tom> No, it shouldn't; read the SQL spec. AFAICS the syntax
> Tom> select interval '1' month is perfectly spec-compliant. The
> Tom> variant select interval '1 month' is *not* per-spec, it is a
> Tom> Postgres-ism.
>
> That is my understanding, though I don't have a copy of the spec (my
> reference is Date & Darwen's "A guide to the SQL standard")
We have links to the spec in the developer's FAQ.
> However, it may be better if the PostgreSQL parser rejected the
> syntax. The current behaviour would seem to be a smoking gun for
> people porting ANSI-compliant SQL applications (assuming such things
> exist :) to PostgreSQL.
So, we have a few major problems with intervals. Let me think a little
and I will summarize.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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