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path: root/src/backend/utils/adt/char.c
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2024-03-04Remove unused #include's from backend .c filesPeter Eisentraut
as determined by include-what-you-use (IWYU) While IWYU also suggests to *add* a bunch of #include's (which is its main purpose), this patch does not do that. In some cases, a more specific #include replaces another less specific one. Some manual adjustments of the automatic result: - IWYU currently doesn't know about includes that provide global variable declarations (like -Wmissing-variable-declarations), so those includes are being kept manually. - All includes for port(ability) headers are being kept for now, to play it safe. - No changes of catalog/pg_foo.h to catalog/pg_foo_d.h, to keep the patch from exploding in size. Note that this patch touches just *.c files, so nothing declared in header files changes in hidden ways. As a small example, in src/backend/access/transam/rmgr.c, some IWYU pragma annotations are added to handle a special case there. Discussion: https://www.postgresql.org/message-id/flat/af837490-6b2f-46df-ba05-37ea6a6653fc%40eisentraut.org
2024-01-03Update copyright for 2024Bruce Momjian
Reported-by: Michael Paquier Discussion: https://postgr.es/m/ZZKTDPxBBMt3C0J9@paquier.xyz Backpatch-through: 12
2023-01-10New header varatt.h split off from postgres.hPeter Eisentraut
This new header contains all the variable-length data types support (TOAST support) from postgres.h, which isn't needed by large parts of the backend code. Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://www.postgresql.org/message-id/flat/ddcce239-0f29-6e62-4b47-1f8ca742addf%40enterprisedb.com
2023-01-02Update copyright for 2023Bruce Momjian
Backpatch-through: 11
2022-08-02Change type "char"'s I/O format for non-ASCII characters.Tom Lane
Previously, a byte with the high bit set was just transmitted as-is by charin() and charout(). This is problematic if the database encoding is multibyte, because the result of charout() won't be validly encoded, which breaks various stuff that expects all text strings to be validly encoded. We've previously decided to enforce encoding validity rather than try to individually harden each place that might have a problem with such strings, so it's time to do something about "char". To fix, represent high-bit-set characters as \ooo (backslash and three octal digits), following the ancient "escape" format for bytea. charin() will continue to accept the old way as well, though that is only reachable in single-byte encodings. Add some test cases just so there is coverage for this code. We'll otherwise leave this question undocumented as it was before, because we don't really want to encourage end-user use of "char". For the moment, back-patch into v15 so that this change appears in 15beta3. If there's not great pushback we should consider absorbing this change into the older branches. Discussion: https://postgr.es/m/2318797.1638558730@sss.pgh.pa.us
2022-01-07Update copyright for 2022Bruce Momjian
Backpatch-through: 10
2021-01-02Update copyright for 2021Bruce Momjian
Backpatch-through: 9.5
2020-01-01Update copyrights for 2020Bruce Momjian
Backpatch-through: update all files in master, backpatch legal files through 9.4
2019-01-02Update copyright for 2019Bruce Momjian
Backpatch-through: certain files through 9.4
2018-01-02Update copyright for 2018Bruce Momjian
Backpatch-through: certain files through 9.3
2017-03-12Use wrappers of PG_DETOAST_DATUM_PACKED() more.Noah Misch
This makes almost all core code follow the policy introduced in the previous commit. Specific decisions: - Text search support functions with char* and length arguments, such as prsstart and lexize, may receive unaligned strings. I doubt maintainers of non-core text search code will notice. - Use plain VARDATA() on values detoasted or synthesized earlier in the same function. Use VARDATA_ANY() on varlenas sourced outside the function, even if they happen to always have four-byte headers. As an exception, retain the universal practice of using VARDATA() on return values of SendFunctionCall(). - Retain PG_GETARG_BYTEA_P() in pageinspect. (Page images are too large for a one-byte header, so this misses no optimization.) Sites that do not call get_page_from_raw() typically need the four-byte alignment. - For now, do not change btree_gist. Its use of four-byte headers in memory is partly entangled with storage of 4-byte headers inside GBT_VARKEY, on disk. - For now, do not change gtrgm_consistent() or gtrgm_distance(). They incorporate the varlena header into a cache, and there are multiple credible implementation strategies to consider.
2017-01-03Update copyright via script for 2017Bruce Momjian
2016-01-02Update copyright for 2016Bruce Momjian
Backpatch certain files through 9.1
2015-01-06Update copyright for 2015Bruce Momjian
Backpatch certain files through 9.0
2014-05-06pgindent run for 9.4Bruce Momjian
This includes removing tabs after periods in C comments, which was applied to back branches, so this change should not effect backpatching.
2014-01-07Update copyright for 2014Bruce Momjian
Update all files in head, and files COPYRIGHT and legal.sgml in all back branches.
2013-01-01Update copyrights for 2013Bruce Momjian
Fully update git head, and update back branches in ./COPYRIGHT and legal.sgml files.
2012-01-01Update copyright notices for year 2012.Bruce Momjian
2011-01-01Stamp copyrights for year 2011.Bruce Momjian
2010-09-20Remove cvs keywords from all files.Magnus Hagander
2010-01-02Update copyright for the year 2010.Bruce Momjian
2009-01-01Update copyright for 2009.Bruce Momjian
2008-01-01Update copyrights in source tree to 2008.Bruce Momjian
2007-02-27Replace direct assignments to VARATT_SIZEP(x) with SET_VARSIZE(x, len).Tom Lane
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
2007-01-05Update CVS HEAD for 2007 copyright. Back branches are typically notBruce Momjian
back-stamped for this.
2006-03-11Remove a few places that attempted to define INT_MAX, SCHAR_MAX, andNeil Conway
similar constants if they were not previously defined. All these constants must be defined by limits.h according to C89, so we can safely assume they are present.
2006-03-05Update copyright for 2006. Update scripts.Bruce Momjian
2005-10-15Standard pgindent run for 8.1.Bruce Momjian
2004-12-31Tag appropriate files for rc3PostgreSQL Daemon
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 ...
2004-10-04Remove arithmetic operators on the 1-byte-char datatype, as per proposalsTom Lane
made several times in the past. Add coercion functions between "char" and integer so that a workaround is possible if needed. Initdb forced.
2004-08-29Update copyright to 2004.Bruce Momjian
2003-11-29$Header: -> $PostgreSQL Changes ...PostgreSQL Daemon
2003-08-04Update copyrights to 2003.Bruce Momjian
2003-08-04pgindent run.Bruce Momjian
2003-07-27Error message editing in utils/adt. Again thanks to Joe Conway for doingTom Lane
the bulk of the heavy lifting ...
2003-05-12Add binary I/O routines for a bunch more datatypes. Still a few to go,Tom Lane
but that was enough tedium for one day. Along the way, move the few support routines for types xid and cid into a more logical place.
2003-03-11Add explicit tests for division by zero to all user-accessible integerTom Lane
division and modulo functions, to avoid problems on OS X (which fails to trap 0 divide at all) and Windows (which traps it in some bizarre nonstandard fashion). Standardize on 'division by zero' as the one true spelling of this error message. Add regression tests as suggested by Neil Conway.
2002-06-20Update copyright to 2002.Bruce Momjian
2001-10-25pgindent run on all C files. Java run to follow. initdb/regressionBruce Momjian
tests pass.
2001-05-28Make text <=> char conversion functions convert zero character to andTom Lane
from an empty text string. This makes them consistent with the de facto behavior of type char's I/O conversion functions, and avoids generating text values with embedded nulls, which confuse many text operators.
2001-01-24Change Copyright from PostgreSQL, Inc to PostgreSQL Global Development Group.Bruce Momjian
2000-07-03TOASTJan Wieck
WARNING: This is actually broken - we have self-deadlocks due to concurrent changes in buffer management. Vadim and me are working on it. Jan
2000-06-05Latest round of fmgr updates. All functions with bool,char, or int2Tom Lane
inputs have been converted to newstyle. This should go a long way towards fixing our portability problems with platforms where char and short parameters are passed differently from int-width parameters. Still more to do for the Alpha port however.
2000-01-26Add:Bruce Momjian
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc to all files copyright Regents of Berkeley. Man, that's a lot of files.
1999-07-17 Move some system includes into c.h, and remove duplicates.Bruce Momjian
1999-07-16Final cleanup.Bruce Momjian
1999-07-15Clean up #include in /include directory. Add scripts for checking includes.Bruce Momjian
1999-07-14Cleanup of /include #include's, for 6.6 only.Bruce Momjian
1999-05-25pgindent run over code.Bruce Momjian
1999-02-13Change my-function-name-- to my_function_name, and optimizer renames.Bruce Momjian