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| author | Teodor Sigaev <teodor@sigaev.ru> | 2016-04-07 18:44:18 +0300 |
|---|---|---|
| committer | Teodor Sigaev <teodor@sigaev.ru> | 2016-04-07 18:44:18 +0300 |
| commit | bb140506df605fab58f48926ee1db1f80bdafb59 (patch) | |
| tree | 581f9aeb71e3596000af3b4904e0c62a372d77b3 /src/backend/utils/adt/tsvector_parser.c | |
| parent | 015e88942aa50f0d419ddac00e63bb06d6e62e86 (diff) | |
| download | postgresql-bb140506df605fab58f48926ee1db1f80bdafb59.tar.gz postgresql-bb140506df605fab58f48926ee1db1f80bdafb59.zip | |
Phrase full text search.
Patch introduces new text search operator (<-> or <DISTANCE>) into tsquery.
On-disk and binary in/out format of tsquery are backward compatible.
It has two side effect:
- change order for tsquery, so, users, who has a btree index over tsquery,
should reindex it
- less number of parenthesis in tsquery output, and tsquery becomes more
readable
Authors: Teodor Sigaev, Oleg Bartunov, Dmitry Ivanov
Reviewers: Alexander Korotkov, Artur Zakirov
Diffstat (limited to 'src/backend/utils/adt/tsvector_parser.c')
| -rw-r--r-- | src/backend/utils/adt/tsvector_parser.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/backend/utils/adt/tsvector_parser.c b/src/backend/utils/adt/tsvector_parser.c index e2817082db8..d99405824d7 100644 --- a/src/backend/utils/adt/tsvector_parser.c +++ b/src/backend/utils/adt/tsvector_parser.c @@ -89,7 +89,15 @@ do { \ } \ } while (0) -#define ISOPERATOR(x) ( pg_mblen(x)==1 && ( *(x)=='!' || *(x)=='&' || *(x)=='|' || *(x)=='(' || *(x)==')' ) ) +/* phrase operator begins with '<' */ +#define ISOPERATOR(x) \ + ( pg_mblen(x) == 1 && ( *(x) == '!' || \ + *(x) == '&' || \ + *(x) == '|' || \ + *(x) == '(' || \ + *(x) == ')' || \ + *(x) == '<' \ + ) ) /* Fills gettoken_tsvector's output parameters, and returns true */ #define RETURN_TOKEN \ |