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Phrase full text search.

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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
This commit is contained in:
Teodor Sigaev
2016-04-07 18:44:18 +03:00
parent 015e88942a
commit bb140506df
30 changed files with 2542 additions and 450 deletions
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4
src/backend/utils/adt/tsgistidx.c
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@ -298,7 +298,7 @@ typedef struct
* is there value 'val' in array or not ?
*/
static bool
checkcondition_arr(void *checkval, QueryOperand *val)
checkcondition_arr(void *checkval, QueryOperand *val, ExecPhraseData *data)
{
int32 *StopLow = ((CHKVAL *) checkval)->arrb;
int32 *StopHigh = ((CHKVAL *) checkval)->arre;
@ -327,7 +327,7 @@ checkcondition_arr(void *checkval, QueryOperand *val)
}
static bool
checkcondition_bit(void *checkval, QueryOperand *val)
checkcondition_bit(void *checkval, QueryOperand *val, ExecPhraseData *data)
{
/*
* we are not able to find a prefix in signature tree