Commit Graph

23 Commits

Author SHA1 Message Date
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
859b8dd51a Add a defense to prevent core dumps if 8.2 version of rank_cd() is used with
the 8.1 SQL function definition for it.  Per report from Rajesh Kumar Mallah,
such a DBA error doesn't seem at all improbable, and the cost of checking for
it is not very high compared to the cost of running this function.  (It would
have been better to change the C name of the function so it wouldn't be called
by the old SQL definition, but it's too late for that now in the 8.2 branch.)
2006-12-28 01:09:01 +00:00
Teodor Sigaev
84151d0644 Avoid infinity calculations in rank_cd 2006-11-22 15:55:05 +00:00
Tom Lane
e378f82e00 Make use of qsort_arg in several places that were formerly using klugy
static variables.  This avoids any risk of potential non-reentrancy,
and in particular offers a much cleaner workaround for the Intel compiler
bug that was affecting ginutil.c.
2006-10-05 17:57:40 +00:00
Bruce Momjian
f99a569a2e pgindent run for 8.2. 2006-10-04 00:30:14 +00:00
Teodor Sigaev
e30df619cd Fix stupid mistake in rank_cd_def cleanup 2006-04-10 09:56:52 +00:00
Teodor Sigaev
38c4fe87ac Significantly improve ranking:
1) rank_cd now use weight of lexemes
2) rank_cd and rank can use any combination of normalization methods:
        no normalization
        normalization by log(length of document)
        -----/------- by length of document
        -----/------- by number of unique word in document
        -----/------- by log(number of unique word in document)
        -----/------- by number of covers (only rank_cd)

Improve cover's search.

TODO: changes in documentation
2006-03-02 19:07:19 +00:00
Bruce Momjian
436a2956d8 Re-run pgindent, fixing a problem where comment lines after a blank
comment line where output as too long, and update typedefs for /lib
directory.  Also fix case where identifiers were used as variable names
in the backend, but as typedefs in ecpg (favor the backend for
indenting).

Backpatch to 8.1.X.
2005-11-22 18:17:34 +00:00
Tom Lane
1d0d8d3c38 Mop-up for nulls-in-arrays patch: fix some places that access array
contents directly.
2005-11-18 02:38:24 +00:00
Teodor Sigaev
0645663e6c New features for tsearch2:
1 Comparison operation for tsquery
2 Btree index on tsquery
3 numnode(tsquery) - returns 'length' of tsquery
4 tsquery @ tsquery, tsquery ~ tsquery - contains, contained for tsquery.
  Note: They don't gurantee exact result, only MAY BE, so it
  useful only for speed up rewrite functions
5 GiST index support for @,~
6 rewrite():
        select rewrite(orig, what, to);
        select rewrite(ARRAY[orig, what, to]) from tsquery_table;
        select rewrite(orig, 'select what, to from tsquery_table;');
7 significantly improve cover algorithm
2005-11-08 17:08:46 +00:00
Teodor Sigaev
1dd6bd19fa Add sanity check of query 2005-10-31 13:47:09 +00:00
Teodor Sigaev
21b748e76a 1 Fix problem with lost precision in rank with OR-ed lexemes
2 Allow tsquery_in to input void tsquery: resolve dump/restore problem with tsquery
2005-10-28 13:05:06 +00:00
Bruce Momjian
1dc3498251 Standard pgindent run for 8.1. 2005-10-15 02:49:52 +00:00
Teodor Sigaev
7148de1fa8 Prevent to divide by zero and range out of 0..1 2005-06-01 11:45:03 +00:00
Teodor Sigaev
fb13881f42 1 fix various comparing functions
2 implement gtsvector_out for use with gevel module (debug GiST indexes, http://www.sai.msu.su/~megera/postgres/gist/gevel/)
2005-03-31 15:08:08 +00:00
Teodor Sigaev
31b6d840f6 Prevent rank change in case of duplicate search terms 2005-03-05 15:48:32 +00:00
Teodor Sigaev
fe30edbab8 Change
typedef struct {} WordEntryPos;
to
typedef uint16 WordEntryPos
according to http://www.pgsql.ru/db/mw/msg.html?mid=2035188

Require re-fill all tsvector fields and reindex tsvector indexes.
2005-01-25 12:36:25 +00:00
Tom Lane
380bd04c16 Standardize on using the Min, Max, and Abs macros that are in our c.h file,
getting rid of numerous ad-hoc versions that have popped up in various
places.  Shortens code and avoids conflict with Windows min() and max()
macros.
2004-10-21 19:28:36 +00:00
Tom Lane
47fe0517fc Fix some portability issues (reliance on gcc-isms). 2004-04-01 23:44:38 +00:00
Bruce Momjian
089003fb46 pgindent run. 2003-08-04 00:43:34 +00:00
Tom Lane
8fd5b3ed67 Error message editing in contrib (mostly by Joe Conway --- thanks Joe!) 2003-07-24 17:52:50 +00:00
Teodor Sigaev
b88605337e tsearch2 module 2003-07-21 10:27:44 +00:00