Commit Graph

15 Commits

Author SHA1 Message Date
Tom Lane
4394c1b09c Resurrect the code for the rewrite(ARRAY[...]) aggregate function,
and put it into contrib/tsearch2 compatibility module.
2007-11-13 22:14:50 +00:00
Tom Lane
90e3f2aca7 Replace the now-incompatible-with-core contrib/tsearch2 module with a
compatibility package.  This supports importing dumps from past versions
using tsearch2, and provides the old names and API for most functions
that were changed.  (rewrite(ARRAY[...]) is a glaring omission, though.)

Pavel Stehule and Tom Lane
2007-11-13 21:02:29 +00:00
Tom Lane
684ad6a92f Rename contrib contains/contained-by operators to @> and <@, per discussion. 2006-09-10 17:36:52 +00:00
Teodor Sigaev
8a3631f8d8 GIN: Generalized Inverted iNdex.
text[], int4[], Tsearch2 support for GIN.
2006-05-02 11:28:56 +00:00
Teodor Sigaev
011c520cb6 renew output of regression test accordingly to
http://archives.postgresql.org/pgsql-committers/2006-02/msg00089.php
2006-02-10 11:18:40 +00:00
Teodor Sigaev
c52795d18a Text parser rewritten:
- supports multibyte encodings
        - more strict rules for lexemes
        - flex isn't used
Add:
        - tsquery plainto_tsquery(text)
          Function makes tsquery from plain text.
        - &&, ||, !! operation for tsquery for combining
          tsquery from it's parts:  'foo & bar' || 'asd' => 'foo & bar | asd'
2005-11-21 12:27:57 +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
Bruce Momjian
bb3cce4ec9 Add E'' syntax so eventually normal strings can treat backslashes
literally.

Add GUC variables:

        "escape_string_warning" - warn about backslashes in non-E strings
        "escape_string_syntax" - supports E'' syntax?
        "standard_compliant_strings" - treats backslashes literally in ''

Update code to use E'' when escapes are used.
2005-06-26 03:04:37 +00:00
Teodor Sigaev
bb89237531 1 Eliminate duplicate field HLWORD->skip
2 Rework support for html tags in parser
3 add HighlightAll to headline function for generating highlighted
  whole text with saved html tags
2004-06-28 16:19:09 +00:00
Teodor Sigaev
09bc52fe73 Fix stupid bug in installcheck 2004-06-23 09:43:43 +00:00
Teodor Sigaev
a6ea6457fa Stat function now can show statistics per weight of lexemes 2004-05-28 15:36:49 +00:00
Teodor Sigaev
eebdfcdbe6 1 Minimize memory allocation for void (but not null) value.
2 Add silly ordering for ts_vector to aim grouping, union, except etc. Don't use BTree opclass (tsvector_ops).
2004-03-25 16:56:10 +00:00
Teodor Sigaev
61366a9503 More accuracy works with stopwords in queries 2003-08-28 12:23:24 +00:00
Teodor Sigaev
dd2870f76f Add ts_debug function for debugging configurations 2003-08-06 09:19:21 +00:00
Teodor Sigaev
b88605337e tsearch2 module 2003-07-21 10:27:44 +00:00