14 Commits

Author	SHA1	Message	Date
Tom Lane	72cce2c780	Fix possible buffer overrun in contrib/pg_trgm. ... Allow for the possibility that folding a string to lower case makes it longer (due to replacing a character with a longer multibyte character). This doesn't change the number of trigrams that will be extracted, but it does affect the required size of an intermediate buffer in generate_trgm(). Per bug #8821 from Ufuk Kayserilioglu. Also install some checks that the input string length is not so large as to cause overflow in the calculations of palloc request sizes. Back-patch to all supported versions.	2014-01-13 13:07:26 -05:00
Tom Lane	697f5cadf5	Fix contrib/pg_trgm's similarity() function for trigram-free strings. ... Cases such as similarity('', '') produced a NaN result due to computing 0/0. Per discussion, make it return zero instead. This appears to be the basic cause of bug #7867 from Michele Baravalle, although it remains unclear why her installation doesn't think Cyrillic letters are letters. Back-patch to all active branches.	2013-02-13 14:07:26 -05:00
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