| Lists: | pgsql-hackers |
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| From: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | FETCH FIRST |
| Date: | 2008-03-25 14:45:03 |
| Message-ID: | 1206456303.4285.926.camel@ebony.site |
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| Lists: | pgsql-hackers |
SQL200n specifies a new command similar to our LIMIT
FETCH { FIRST | NEXT } n { ROW | ROWS } ONLY
and also that the OFFSET command can have an optional suffix
{ ROW | ROWS }
Seems like a % project for the TODO list
--
Simon Riggs
2ndQuadrant http://www.2ndQuadrant.com
PostgreSQL UK 2008 Conference: http://www.postgresql.org.uk
| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: FETCH FIRST |
| Date: | 2008-03-25 14:45:51 |
| Message-ID: | 200803251445.m2PEjps13608@momjian.us |
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| Lists: | pgsql-hackers |
Simon Riggs wrote:
> SQL200n specifies a new command similar to our LIMIT
>
> FETCH { FIRST | NEXT } n { ROW | ROWS } ONLY
>
> and also that the OFFSET command can have an optional suffix
>
> { ROW | ROWS }
>
> Seems like a % project for the TODO list
Where does this FETCH appear in a SELECT?
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://postgres.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
| From: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
|---|---|
| To: | Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: FETCH FIRST |
| Date: | 2008-03-25 15:11:03 |
| Message-ID: | 1206457863.4285.937.camel@ebony.site |
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| Lists: | pgsql-hackers |
On Tue, 2008-03-25 at 10:45 -0400, Bruce Momjian wrote:
> Simon Riggs wrote:
> > SQL200n specifies a new command similar to our LIMIT
> >
> > FETCH { FIRST | NEXT } n { ROW | ROWS } ONLY
> >
> > and also that the OFFSET command can have an optional suffix
> >
> > { ROW | ROWS }
> >
> > Seems like a % project for the TODO list
>
> Where does this FETCH appear in a SELECT?
It's supposed to go *after* the OFFSET clause in a query, but making it
a simple synonym for LIMIT seems most sensible.
It's also allowed as part of the WITH clause (that we don't yet have).
--
Simon Riggs
2ndQuadrant http://www.2ndQuadrant.com
PostgreSQL UK 2008 Conference: http://www.postgresql.org.uk
| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: FETCH FIRST |
| Date: | 2008-03-25 15:47:04 |
| Message-ID: | 21513.1206460024@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Simon Riggs <simon(at)2ndquadrant(dot)com> writes:
> On Tue, 2008-03-25 at 10:45 -0400, Bruce Momjian wrote:
>> Where does this FETCH appear in a SELECT?
> It's supposed to go *after* the OFFSET clause in a query, but making it
> a simple synonym for LIMIT seems most sensible.
Huh? OFFSET isn't in standard SQL either. Are you sure you're not
confusing FETCH-from-a-cursor with SELECT?
regards, tom lane
| From: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: FETCH FIRST |
| Date: | 2008-03-25 15:57:59 |
| Message-ID: | 1206460679.4285.948.camel@ebony.site |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Lists: | pgsql-hackers |
On Tue, 2008-03-25 at 11:47 -0400, Tom Lane wrote:
> Simon Riggs <simon(at)2ndquadrant(dot)com> writes:
> > On Tue, 2008-03-25 at 10:45 -0400, Bruce Momjian wrote:
> >> Where does this FETCH appear in a SELECT?
>
> > It's supposed to go *after* the OFFSET clause in a query, but making it
> > a simple synonym for LIMIT seems most sensible.
>
> Huh? OFFSET isn't in standard SQL either.
Tis now.
> Are you sure you're not
> confusing FETCH-from-a-cursor with SELECT?
Quite sure.
--
Simon Riggs
2ndQuadrant http://www.2ndQuadrant.com
PostgreSQL UK 2008 Conference: http://www.postgresql.org.uk