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Author SHA1 Message Date
Teodor Sigaev d4c6da1527 Allow GIN's extractQuery method to signal that nothing can satisfy the query. 
In this case extractQuery should returns -1 as nentries. This changes
prototype of extractQuery method to use int32* instead of uint32* for
nentries argument.
Based on that gincostestimate may see two corner cases: nothing will be found
or seqscan should be used.

Per proposal at http://archives.postgresql.org/pgsql-hackers/2007-01/msg01581.php

PS tsearch_core patch should be sightly modified to support changes, but I'm
waiting a verdict about reviewing of tsearch_core patch.
 2007-01-31 15:09:45 +00:00
Tom Lane 08fa6a6851 Editorial improvements for GIN documentation. 2006-12-01 23:46:46 +00:00
Peter Eisentraut f1e3e3238d Fix typos 2006-11-30 20:50:44 +00:00
Neil Conway 28568e585f Spelling and related minor fixes for the GIN docs. 2006-11-23 05:58:01 +00:00
Teodor Sigaev bcbb402e31 Improve wordings by David Fuhry <dfuhry@cs.kent.edu> 2006-09-18 12:11:36 +00:00
Tom Lane c2314b9ece Fix missing markup. 2006-09-14 21:15:07 +00:00
Teodor Sigaev e25c3e84b6 Fix SGML markup 2006-09-14 13:40:28 +00:00
Teodor Sigaev 0ca9907ce4 GIN documentation and slightly improving GiST docs. 
Thanks to  Christopher Kings-Lynne <chris.kingslynne@gmail.com> for
initial version and Jeff Davis <pgsql@j-davis.com> for inspection
 2006-09-14 11:16:27 +00:00
Bruce Momjian 10964008c9 Remove GIN documentation 
Christopher Kings-Lynne
 2006-09-05 03:09:56 +00:00
Bruce Momjian 19dd2fbf7e Add GIN documentation. 
Christopher Kings-Lynne
 2006-09-04 20:10:53 +00:00