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* Document the limit on the number of parameters
@ 2018-07-17 13:25 PG Doc comments form <[email protected]>
2018-08-07 21:58 ` Re: Document the limit on the number of parameters Bruce Momjian <[email protected]>
0 siblings, 1 reply; 5+ messages in thread
From: PG Doc comments form @ 2018-07-17 13:25 UTC (permalink / raw)
To: [email protected]; +Cc: [email protected]
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/10/static/sql-prepare.html
Description:
The backend protocol limits the number of parameters that can be passed for
a prepared statement to 32767 (2 byte signed integer).
As that is something that is independent of the client library, I think this
should be documented in the user facing manual for the Postgres server
somewhere.
I did not find anything in the chapter about PREPARE
https://www.postgresql.org/docs/current/static/sql-prepare.html or about the
backend protocol:
https://www.postgresql.org/docs/current/static/protocol.html nor on the FAQ
page: https://wiki.postgresql.org/wiki/FAQ
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: Document the limit on the number of parameters
2018-07-17 13:25 Document the limit on the number of parameters PG Doc comments form <[email protected]>
@ 2018-08-07 21:58 ` Bruce Momjian <[email protected]>
2018-08-08 02:06 ` Re: Document the limit on the number of parameters Stephen Frost <[email protected]>
0 siblings, 1 reply; 5+ messages in thread
From: Bruce Momjian @ 2018-08-07 21:58 UTC (permalink / raw)
To: [email protected]; [email protected]
On Tue, Jul 17, 2018 at 01:25:08PM +0000, PG Doc comments form wrote:
> The following documentation comment has been logged on the website:
>
> Page: https://www.postgresql.org/docs/10/static/sql-prepare.html
> Description:
>
> The backend protocol limits the number of parameters that can be passed for
> a prepared statement to 32767 (2 byte signed integer).
>
> As that is something that is independent of the client library, I think this
> should be documented in the user facing manual for the Postgres server
> somewhere.
>
> I did not find anything in the chapter about PREPARE
> https://www.postgresql.org/docs/current/static/sql-prepare.html or about the
> backend protocol:
> https://www.postgresql.org/docs/current/static/protocol.html nor on the FAQ
> page: https://wiki.postgresql.org/wiki/FAQ
Uh, is this something people will care about?
--
Bruce Momjian <[email protected]> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ As you are, so once was I. As I am, so you will be. +
+ Ancient Roman grave inscription +
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: Document the limit on the number of parameters
2018-07-17 13:25 Document the limit on the number of parameters PG Doc comments form <[email protected]>
2018-08-07 21:58 ` Re: Document the limit on the number of parameters Bruce Momjian <[email protected]>
@ 2018-08-08 02:06 ` Stephen Frost <[email protected]>
2018-08-08 02:59 ` Re: Document the limit on the number of parameters Tom Lane <[email protected]>
0 siblings, 1 reply; 5+ messages in thread
From: Stephen Frost @ 2018-08-08 02:06 UTC (permalink / raw)
To: Bruce Momjian <[email protected]>; +Cc: [email protected]; [email protected]
Greetings,
* Bruce Momjian ([email protected]) wrote:
> On Tue, Jul 17, 2018 at 01:25:08PM +0000, PG Doc comments form wrote:
> > The following documentation comment has been logged on the website:
> >
> > Page: https://www.postgresql.org/docs/10/static/sql-prepare.html
> > Description:
> >
> > The backend protocol limits the number of parameters that can be passed for
> > a prepared statement to 32767 (2 byte signed integer).
> >
> > As that is something that is independent of the client library, I think this
> > should be documented in the user facing manual for the Postgres server
> > somewhere.
> >
> > I did not find anything in the chapter about PREPARE
> > https://www.postgresql.org/docs/current/static/sql-prepare.html or about the
> > backend protocol:
> > https://www.postgresql.org/docs/current/static/protocol.html nor on the FAQ
> > page: https://wiki.postgresql.org/wiki/FAQ
>
> Uh, is this something people will care about?
Seems like a limitation in the backend protocol should probably be
documented in the backend protocol section of the docs..
Thanks!
Stephen
Attachments:
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^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: Document the limit on the number of parameters
2018-07-17 13:25 Document the limit on the number of parameters PG Doc comments form <[email protected]>
2018-08-07 21:58 ` Re: Document the limit on the number of parameters Bruce Momjian <[email protected]>
2018-08-08 02:06 ` Re: Document the limit on the number of parameters Stephen Frost <[email protected]>
@ 2018-08-08 02:59 ` Tom Lane <[email protected]>
2018-08-08 03:01 ` Re: Document the limit on the number of parameters Stephen Frost <[email protected]>
0 siblings, 1 reply; 5+ messages in thread
From: Tom Lane @ 2018-08-08 02:59 UTC (permalink / raw)
To: Stephen Frost <[email protected]>; +Cc: Bruce Momjian <[email protected]>; [email protected]; [email protected]
Stephen Frost <[email protected]> writes:
> * Bruce Momjian ([email protected]) wrote:
>> On Tue, Jul 17, 2018 at 01:25:08PM +0000, PG Doc comments form wrote:
>>> The backend protocol limits the number of parameters that can be passed for
>>> a prepared statement to 32767 (2 byte signed integer).
>> Uh, is this something people will care about?
> Seems like a limitation in the backend protocol should probably be
> documented in the backend protocol section of the docs..
It is: the definition of the Bind message format says that the parameter
count is an int16.
The question is whether this deserves to be cross-referenced from
elsewhere. I agree with Bruce that it seems unlikely to be helpful.
regards, tom lane
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: Document the limit on the number of parameters
2018-07-17 13:25 Document the limit on the number of parameters PG Doc comments form <[email protected]>
2018-08-07 21:58 ` Re: Document the limit on the number of parameters Bruce Momjian <[email protected]>
2018-08-08 02:06 ` Re: Document the limit on the number of parameters Stephen Frost <[email protected]>
2018-08-08 02:59 ` Re: Document the limit on the number of parameters Tom Lane <[email protected]>
@ 2018-08-08 03:01 ` Stephen Frost <[email protected]>
0 siblings, 0 replies; 5+ messages in thread
From: Stephen Frost @ 2018-08-08 03:01 UTC (permalink / raw)
To: Tom Lane <[email protected]>; +Cc: Bruce Momjian <[email protected]>; [email protected]; [email protected]
Greetings Tom,
* Tom Lane ([email protected]) wrote:
> Stephen Frost <[email protected]> writes:
> > * Bruce Momjian ([email protected]) wrote:
> >> On Tue, Jul 17, 2018 at 01:25:08PM +0000, PG Doc comments form wrote:
> >>> The backend protocol limits the number of parameters that can be passed for
> >>> a prepared statement to 32767 (2 byte signed integer).
>
> >> Uh, is this something people will care about?
>
> > Seems like a limitation in the backend protocol should probably be
> > documented in the backend protocol section of the docs..
>
> It is: the definition of the Bind message format says that the parameter
> count is an int16.
>
> The question is whether this deserves to be cross-referenced from
> elsewhere. I agree with Bruce that it seems unlikely to be helpful.
Ah, I read the original poster as saying that it wasn't in the protocol
docs. If it's there already then I agree, that's sufficient.
Thanks!
Stephen
Attachments:
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2018-07-17 13:25 Document the limit on the number of parameters PG Doc comments form <[email protected]>
2018-08-07 21:58 ` Bruce Momjian <[email protected]>
2018-08-08 02:06 ` Stephen Frost <[email protected]>
2018-08-08 02:59 ` Tom Lane <[email protected]>
2018-08-08 03:01 ` Stephen Frost <[email protected]>
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