Re: qsort again (was Re: [PERFORM] Strange Create Index
Jonah H. Harris <jonah.harris@gmail.com>
From: "Jonah H. Harris" <jonah.harris@gmail.com>
To: Markus Schaber <schabi@logix-tt.com>
Cc: pgsql-performance@postgresql.org, pgsql-hackers@postgresql.org
Date: 2006-02-16T14:19:44Z
Lists: pgsql-hackers, pgsql-performance
Last night I implemented a non-recursive introsort in C... let me test it a bit more and then I'll post it here for everyone else to try out. On 2/16/06, Markus Schaber <schabi@logix-tt.com> wrote: > > Hi, Ron, > > Ron wrote: > > > ...and of course if you know enough about the data to be sorted so as to > > constrain it appropriately, one should use a non comparison based O(N) > > sorting algorithm rather than any of the general comparison based > > O(NlgN) methods. > > Sounds interesting, could you give us some pointers (names, URLs, > papers) to such algorithms? > > Thanks a lot, > Markus > > > > -- > Markus Schaber | Logical Tracking&Tracing International AG > Dipl. Inf. | Software Development GIS > > Fight against software patents in EU! www.ffii.org > www.nosoftwarepatents.org > > ---------------------------(end of broadcast)--------------------------- > TIP 4: Have you searched our list archives? > > http://archives.postgresql.org > -- Jonah H. Harris, Database Internals Architect EnterpriseDB Corporation 732.331.1324