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15 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
Tom Lane 4f09b55dc3 Simplify overly-cute array coding to avoid an apparent gcc bug, which 
may or may not be harmless.  Report from Stefan, patch from Heikki.
 2007-07-12 23:10:57 +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 234a02b2a8 Replace direct assignments to VARATT_SIZEP(x) with SET_VARSIZE(x, len). 
Get rid of VARATT_SIZE and VARATT_DATA, which were simply redundant with
VARSIZE and VARDATA, and as a consequence almost no code was using the
longer names.  Rename the length fields of struct varlena and various
derived structures to catch anyplace that was accessing them directly;
and clean up various places so caught.  In itself this patch doesn't
change any behavior at all, but it is necessary infrastructure if we hope
to play any games with the representation of varlena headers.
Greg Stark and Tom Lane
 2007-02-27 23:48:10 +00:00
Neil Conway 8ff2bccee3 Squelch some VC++ compiler warnings. Mark float literals with the "f" 
suffix, to distinguish them from doubles. Make some function declarations
and definitions use the "const" qualifier for arguments consistently.
Ignore warning 4102 ("unreferenced label"), because such warnings
are always emitted by bison-generated code. Patch from Magnus Hagander.
 2007-01-26 17:45:42 +00:00
Tom Lane a0ffab351e Magic blocks don't do us any good unless we use 'em ... so install one 
in every shared library.
 2006-05-30 22:12:16 +00:00
Neil Conway 8e5a10d46c This patch makes the error message strings throughout the backend 
more compliant with the error message style guide. In particular,
errdetail should begin with a capital letter and end with a period,
whereas errmsg should not. I also fixed a few related issues in
passing, such as fixing the repeated misspelling of "lexeme" in
contrib/tsearch2 (per Tom's suggestion).
 2006-03-01 06:30:32 +00:00
Bruce Momjian 1dc3498251 Standard pgindent run for 8.1. 2005-10-15 02:49:52 +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