@SD: Is there a way to force limiting the result set before sorting it? On Fri, Jan 24, 2020 at 2:55 PM Dimitry Sibiryakov s...@ibphoenix.com [firebird-support] <firebird-support@yahoogroups.com> wrote:
> 24.01.2020 14:49, Matthias Winkler spmm...@gmail.com [firebird-support] > wrote: > > The result are just 8 entries. Sorting those 3 entries should then take > no time at all, right? > > Wrong. Sorting happens before result set limit apply. > > > Any ideas? > > Rule number one: never use "not in". > > Learn how Firebird works: http://www.ibase.ru/performance/ > Pay a special attention to http://www.ibase.ru/dataaccesspaths/ > > > -- > WBR, SD. > > > ------------------------------------ > > ------------------------------------ > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > Visit http://www.firebirdsql.org and click the Documentation item > on the main (top) menu. Try FAQ and other links from the left-side menu > there. > > Also search the knowledgebases at > http://www.ibphoenix.com/resources/documents/ > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > ------------------------------------ > > Yahoo Groups Links > > > >
