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14 Commits

Author SHA1 Message Date
Tom Lane
8436489c81 Add KNNGIST support to contrib/btree_gist. 
This extends GiST's support for nearest-neighbor searches to many of the
standard data types.

Teodor Sigaev
 2011-03-02 14:44:33 -05:00
Magnus Hagander
9f2e211386 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
Bruce Momjian
65e806cba1 pgindent run for 9.0 2010-02-26 02:01:40 +00:00
Teodor Sigaev
aebc4e67ff Preventing intersection of ranges during page split. Changes are only 
optimization, so don't backpatch.
 2009-12-02 13:13:24 +00:00
Bruce Momjian
d747140279 8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list 
provided by Andrew.
 2009-06-11 14:49:15 +00:00
Andrew Dunstan
53972b460c Add $PostgreSQL$ markers to a lot of files that were missing them. 
This particular batch was just for *.c and *.h file.

The changes were made with the following 2 commands:

find . \( \( -name 'libstemmer' -o -name 'expected' -o -name 'ppport.h' \) -prune \) -o  \( -name '*.[ch]'  \) \( -exec grep -q '\$PostgreSQL' {} \; -o -print \) | while read file ; do head -n 1 < $file | grep -q '^/\*' && echo $file; done | xargs -l sed -i -e '1s/^\// /' -e '1i/*\n * $PostgreSQL:$ \n *'

find . \( \( -name 'libstemmer' -o -name 'expected' -o -name 'ppport.h' \) -prune \) -o  \( -name '*.[ch]'  \) \( -exec grep -q '\$PostgreSQL' {} \; -o -print \) | xargs -l sed -i -e '1i/*\n * $PostgreSQL:$ \n */'
 2008-05-17 01:28:26 +00:00
Tom Lane
9b5c8d45f6 Push index operator lossiness determination down to GIST/GIN opclass 
"consistent" functions, and remove pg_amop.opreqcheck, as per recent
discussion.  The main immediate benefit of this is that we no longer need
8.3's ugly hack of requiring @@@ rather than @@ to test weight-using tsquery
searches on GIN indexes.  In future it should be possible to optimize some
other queries better than is done now, by detecting at runtime whether the
index match is exact or not.

Tom Lane, after an idea of Heikki's, and with some help from Teodor.
 2008-04-14 17:05:34 +00:00
Teodor Sigaev
1f7ef548ec Changes 
* new split algorithm (as proposed in http://archives.postgresql.org/pgsql-hackers/2006-06/msg00254.php)
  * possible call pickSplit() for second and below columns
  * add spl_(l|r)datum_exists to GIST_SPLITVEC -
    pickSplit should check its values to use already defined
    spl_(l|r)datum for splitting. pickSplit should set
    spl_(l|r)datum_exists to 'false' (if they was 'true') to
    signal to caller about using spl_(l|r)datum.
  * support for old pickSplit(): not very optimal
    but correct split
* remove 'bytes' field from GISTENTRY: in any case size of
  value is defined by it's type.
* split GIST_SPLITVEC to two structures: one for using in picksplit
  and second - for internal use.
* some code refactoring
* support of subsplit to rtree opclasses

TODO: add support of subsplit to contrib modules
 2006-06-28 12:00:14 +00:00
Tom Lane
97ec950186 Update btree_gist for CIDR/INET changes --- there's really no need to 
have a separate set of CIDR code here, either.
 2006-01-26 04:22:36 +00:00
Bruce Momjian
1dc3498251 Standard pgindent run for 8.1. 2005-10-15 02:49:52 +00:00
Teodor Sigaev
ef770cbb69 Fixes from Janko Richter <jankorichter@yahoo.de> 
- Fix wrong index results on text, char, varchar for multibyte strings
- Fix some SIGFPE signals
- Add support for infinite timestamps
- Because of locale settings, btree_gist can not be a prefix index anymore (for text).
  Each node holds now just the lower and upper boundary.
 2005-07-01 13:44:56 +00:00
Bruce Momjian
b6b71b85bc Pgindent run for 8.0. 2004-08-29 05:07:03 +00:00
Teodor Sigaev
7b81988f9b - Add aligment of variable data types 
- Add aligment for interval data types
- Avoid floating point overflow in penalty functions
Janko Richter <jankorichter@yahoo.de> and teodor
 2004-06-03 12:26:10 +00:00
Teodor Sigaev
42d069886f New version. Add support for int2, int8, float4, float8, timestamp with/without time zone, time with/without time zone, date, interval, oid, money and macaddr, char, varchar/text, bytea, numeric, bit, varbit, inet/cidr types for GiST 2004-05-28 10:43:32 +00:00