Re: [BUGS] BUG #5768: Inefficiency of large offsets should be mentioned on SELECT documentation page
Hi, by "LIMIT and OFFSET" page I meant http://www.postgresql.org/docs/9/static/queries-limit.html, it has "LIMIT and OFFSET" heading. At the end of the page, there is this sentence: "The rows skipped by an OFFSET clause still have to be computed inside the server; therefore a large OFFSET might be inefficient." This sentence should also appear on the SELECT page (http://www.postgresql.org/docs/9/static/sql-select.html). Maybe it could also more clearly state that paging with LIMIT and OFFSET over large data set is slow and that user should use WHERE > and LIMIT instead of OFFSET and LIMIT. Regards, Pavel Arnost -- From: "Bruce Momjian" Sent: Tuesday, November 30, 2010 4:11 AM To: "Pavel Arnost" Cc: Subject: Re: [BUGS] BUG #5768: Inefficiency of large offsets should be mentioned on SELECT documentation page Pavel Arnost wrote: The following bug has been logged online: Bug reference: 5768 Logged by: Pavel Arnost Email address: pavel.arn...@loutka.cz PostgreSQL version: 9.01 Operating system: N/A Description:Inefficiency of large offsets should be mentioned on SELECT documentation page Details: Inefficiency of large offsets should be mentioned on SELECT documentation page - now it's only on "LIMIT and OFFSET" page. I have no idea what you are suggesting. There is no LIMIT and OFFSET page in the manuals. -- Bruce Momjian http://momjian.us EnterpriseDB http://enterprisedb.com + It's impossible for everything to be true. + -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
Re: [BUGS] BUG #5768: Inefficiency of large offsets should be mentioned on SELECT documentation page
Hi Bruce, On 30/11/10 03:11, Bruce Momjian wrote: Pavel Arnost wrote: The following bug has been logged online: Bug reference: 5768 Logged by: Pavel Arnost Email address: pavel.arn...@loutka.cz PostgreSQL version: 9.01 Operating system: N/A Description:Inefficiency of large offsets should be mentioned on SELECT documentation page Details: Inefficiency of large offsets should be mentioned on SELECT documentation page - now it's only on "LIMIT and OFFSET" page. I have no idea what you are suggesting. There is no LIMIT and OFFSET page in the manuals Section 7.6, "LIMIT and OFFSET": http://www.postgresql.org/docs/current/static/queries-limit.html Perhaps a link from the SELECT page to this link would be sufficient. Tom -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
Re: [BUGS] BUG #5768: Inefficiency of large offsets should be mentioned on SELECT documentation page
Pavel Arnost wrote: > > The following bug has been logged online: > > Bug reference: 5768 > Logged by: Pavel Arnost > Email address: pavel.arn...@loutka.cz > PostgreSQL version: 9.01 > Operating system: N/A > Description:Inefficiency of large offsets should be mentioned on > SELECT documentation page > Details: > > Inefficiency of large offsets should be mentioned on SELECT documentation > page - now it's only on "LIMIT and OFFSET" page. I have no idea what you are suggesting. There is no LIMIT and OFFSET page in the manuals. -- Bruce Momjian http://momjian.us EnterpriseDB http://enterprisedb.com + It's impossible for everything to be true. + -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
[BUGS] BUG #5768: Inefficiency of large offsets should be mentioned on SELECT documentation page
The following bug has been logged online: Bug reference: 5768 Logged by: Pavel Arnost Email address: pavel.arn...@loutka.cz PostgreSQL version: 9.01 Operating system: N/A Description:Inefficiency of large offsets should be mentioned on SELECT documentation page Details: Inefficiency of large offsets should be mentioned on SELECT documentation page - now it's only on "LIMIT and OFFSET" page. -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
