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path: root/src/backend/utils/adt/like_match.c
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* Update copyright for 2016Bruce Momjian2016-01-02
| | | | Backpatch certain files through 9.1
* Add recursion depth protection to LIKE matching.Tom Lane2015-10-02
| | | | | Since MatchText() recurses, it could in principle be driven to stack overflow, although quite a long pattern would be needed.
* Update copyright for 2015Bruce Momjian2015-01-06
| | | | Backpatch certain files through 9.0
* Update copyright for 2014Bruce Momjian2014-01-07
| | | | | Update all files in head, and files COPYRIGHT and legal.sgml in all back branches.
* Clean up references to SQL92Peter Eisentraut2013-04-20
| | | | | | In most cases, these were just references to the SQL standard in general. In a few cases, a contrast was made between SQL92 and later standards -- those have been kept unchanged.
* Update copyrights for 2013Bruce Momjian2013-01-01
| | | | | Fully update git head, and update back branches in ./COPYRIGHT and legal.sgml files.
* Update copyright notices for year 2012.Bruce Momjian2012-01-01
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* Fix ILIKE to honor collation when working in single-byte encodings.Tom Lane2011-04-09
| | | | | | The original collation patch only fixed the multi-byte code path. This change also ensures that ILIKE's idea of the case-folding rules is exactly the same as str_tolower's.
* Stamp copyrights for year 2011.Bruce Momjian2011-01-01
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* Remove cvs keywords from all files.Magnus Hagander2010-09-20
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* pgindent run for 9.0, second runBruce Momjian2010-07-06
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* Fix oversight in the previous patch that made LIKE throw error for \ at theTom Lane2010-05-28
| | | | | | end of the pattern: the code path that handles \ just after % should throw error too. As in the previous patch, not back-patching for fear of breaking apps that worked before.
* Rewrite LIKE's %-followed-by-_ optimization so it really works (this timeTom Lane2010-05-28
| | | | | | | | | | | for sure ;-)). It now also optimizes more cases, such as %_%_. Improve comments too. Per bug #5478. In passing, also rename the TCHAR macro to GETCHAR, because pgindent is messing with the formatting of the former (apparently it now thinks TCHAR is a typedef name). Back-patch to 8.3, where the bug was introduced.
* Update copyright for the year 2010.Bruce Momjian2010-01-02
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* 8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef listBruce Momjian2009-06-11
| | | | provided by Andrew.
* Fix LIKE's special-case code for % followed by _. I'm not entirely sure thatTom Lane2009-05-24
| | | | | | | | | | | this case is worth a special code path, but a special code path that gets the boundary condition wrong is definitely no good. Per bug #4821 from Andrew Gierth. In passing, clean up some minor code formatting issues (excess parentheses and blank lines in odd places). Back-patch to 8.3, where the bug was introduced.
* Update copyright for 2009.Bruce Momjian2009-01-01
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* Compare escaped chars case insensitively for ILIKE - per gripe from TGL.Andrew Dunstan2008-09-27
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* Make LIKE throw an error if the escape character is at the end of the patternTom Lane2008-09-26
| | | | | | | | | | (ie, has nothing to quote), rather than silently ignoring the character as has been our historical behavior. This is required by SQL spec and should help reduce the sort of user confusion seen in bug #4436. Per discussion. This is not so much a bug fix as a definitional change, and it could break existing applications; so not back-patched. It might deserve being mentioned as an incompatibility in the 8.4 release notes.
* Fix unportable usages of tolower(). On signed-char machines, it is necessaryTom Lane2008-03-01
| | | | | | | | | to explicitly cast the output back to char before comparing it to a char value, else we get the wrong result for high-bit-set characters. Found by Rolf Jentsch. Also, fix several places where <ctype.h> functions were being called without casting the argument to unsigned char; this is likewise unportable, but we keep making that mistake :-(. These found by buildfarm member salamander, which I will desperately miss if it ever goes belly-up.
* Update copyrights in source tree to 2008.Bruce Momjian2008-01-01
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* pgindent run for 8.3.Bruce Momjian2007-11-15
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* Go back to using a separate method for doing ILIKE for single byteAndrew Dunstan2007-09-22
| | | | | | | character encodings that doesn't involve calling lower(). This should cure the performance regression in this case complained of by Guillaume Smet. It still leaves the horrid performance for multi-byte encodings introduced in 8.2, but there's no obvious solution for that in sight.
* Fix regex, LIKE, and some other second-rank text-manipulation functionsTom Lane2007-09-21
| | | | | | to not cause needless copying of text datums that have 1-byte headers. Greg Stark, in response to performance gripe from Guillaume Smet and ITAGAKI Takahiro.
* Improve efficiency of LIKE/ILIKE code, especially for multi-byte charsets,Andrew Dunstan2007-06-02
| | | | | | | | | | | and most especially for UTF8. Remove unnecessary special cases for bytea processing and single-byte charset ILIKE. a ILIKE b is now processed as lower(a) LIKE lower(b) in all cases. The code is now considerably simpler. All comparisons are now performed byte-wise, and the text and pattern are also advanced byte-wise where it is safe to do so - essentially where a wildcard is not being matched. Andrew Dunstan, from an original patch by ITAGAKI Takahiro, with ideas from Tom Lane and Mark Mielke.
* Replace direct assignments to VARATT_SIZEP(x) with SET_VARSIZE(x, len).Tom Lane2007-02-27
| | | | | | | | | | | 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
* Update CVS HEAD for 2007 copyright. Back branches are typically notBruce Momjian2007-01-05
| | | | back-stamped for this.
* Update copyright for 2006. Update scripts.Bruce Momjian2006-03-05
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* Standard pgindent run for 8.1.Bruce Momjian2005-10-15
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* Suppress signed-vs-unsigned-char warnings.Tom Lane2005-09-24
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* Tag appropriate files for rc3PostgreSQL Daemon2004-12-31
| | | | | | | | Also performed an initial run through of upgrading our Copyright date to extend to 2005 ... first run here was very simple ... change everything where: grep 1996-2004 && the word 'Copyright' ... scanned through the generated list with 'less' first, and after, to make sure that I only picked up the right entries ...
* Update copyright to 2004.Bruce Momjian2004-08-29
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* $Header: -> $PostgreSQL Changes ...PostgreSQL Daemon2003-11-29
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* Fix some copyright notices that weren't updated. Improve copyright toolTom Lane2003-08-04
| | | | so it won't miss 'em again.
* pgindent run.Bruce Momjian2003-08-04
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* Error message editing in utils/adt. Again thanks to Joe Conway for doingTom Lane2003-07-27
| | | | the bulk of the heavy lifting ...
* Remove all traces of multibyte and locale options. Clean up commentsPeter Eisentraut2002-09-03
| | | | referring to "multibyte" where it really means character encoding.
* Update copyright to 2002.Bruce Momjian2002-06-20
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* pgindent run on all C files. Java run to follow. initdb/regressionBruce Momjian2001-10-25
| | | | tests pass.
* Optimization for single byte encodings.Tatsuo Ishii2001-10-04
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