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14 Commits

Author SHA1 Message Date
Tom Lane 6e2f3ae884 Support LIKE and ILIKE index searches via contrib/pg_trgm indexes. 
Unlike Btree-based LIKE optimization, this works for non-left-anchored
search patterns.  The effectiveness of the search depends on how many
trigrams can be extracted from the pattern.  (The worst case, with no
trigrams, degrades to a full-table scan, so this isn't a panacea.  But
it can be very useful.)

Alexander Korotkov, reviewed by Jan Urbanski
 2011-01-31 21:34:49 -05:00
Tom Lane b525bf771e Add KNNGIST support to contrib/pg_trgm. 
Teodor Sigaev, with some revision by Tom
 2010-12-04 00:16:21 -05:00
Magnus Hagander 9f2e211386 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
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
Teodor Sigaev b87b52bf04 Support of multibyte encoding for pg_trgm 2008-11-12 13:43:54 +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
Bruce Momjian 224f91f66d Modify LOOPBYTE/LOOPBIT macros to be more logical; rather than have the 
for() body passed as a parameter, make the macros act as simple headers
to code blocks.

This allows pgindent to be run on these files.
 2007-11-16 00:13:02 +00:00
Teodor Sigaev 15f91f2789 Add GIN support for pg_trgm. From Guillaume Smet <guillaume.smet@gmail.com> 
with minor editorization by me.
 2007-03-14 14:15:40 +00:00
Tom Lane 9f652d430f Fix up several contrib modules that were using varlena datatypes in not-so-obvious 
ways.  I'm not totally sure that I caught everything, but at least now they pass
their regression tests with VARSIZE/SET_VARSIZE defined to reverse byte order.
 2007-02-28 22:44:38 +00:00
Tom Lane ae643747b1 Fix a passel of recently-committed violations of the rule 'thou shalt 
have no other gods before c.h'.  Also remove some demonstrably redundant
#include lines, mostly of <errno.h> which was added to c.h years ago.
 2006-07-14 05:28:29 +00:00
Bruce Momjian ac230e7431 Alphabetically order reference to include files, "S"-"Z". 2006-07-11 18:26:11 +00:00
Tom Lane 33feb55c47 Replace bitwise looping with bytewise looping in hemdistsign and 
sizebitvec of tsearch2, as well as identical code in several other
contrib modules.  This provided about a 20X speedup in building a
large tsearch2 index ... didn't try to measure its effects for other
operations.  Thanks to Stephan Vollmer for providing a test case.
 2006-01-20 22:46:16 +00:00
Bruce Momjian b6b71b85bc Pgindent run for 8.0. 2004-08-29 05:07:03 +00:00
Teodor Sigaev cbfa4092bb trgm - Trigram matching for PostgreSQL 
--------------------------------------

	The pg_trgm contrib module provides functions and index classes
	for determining the similarity of text based on trigram
	matching.
 2004-05-31 17:18:12 +00:00