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Document the limit on the number of parameters 5+ messages / 4 participants [nested] [flat]
* Document the limit on the number of parameters @ 2018-07-17 13:25 PG Doc comments form <[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 @ 2018-08-07 21:58 Bruce Momjian <[email protected]> parent: PG Doc comments form <[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 @ 2018-08-08 02:06 Stephen Frost <[email protected]> parent: Bruce Momjian <[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: [application/pgp-signature] signature.asc (819B, 2-signature.asc) download ^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: Document the limit on the number of parameters @ 2018-08-08 02:59 Tom Lane <[email protected]> parent: 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 @ 2018-08-08 03:01 Stephen Frost <[email protected]> parent: Tom Lane <[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: [application/pgp-signature] signature.asc (819B, 2-signature.asc) download ^ permalink raw reply [nested|flat] 5+ messages in thread
end of thread, other threads:[~2018-08-08 03:01 UTC | newest] Thread overview: 5+ messages (download: mbox mbox.gz follow: Atom feed) -- links below jump to the message on this page -- 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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