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Change the way ^ tokens work in FTS so that the filtering is done as part of reading the FTS index instead of waiting until an entire doclist has been retrieved and then filtering it.

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FossilOrigin-Name: 9b58c59eb4efaa38ce50a3ce1b52f9ba578c71d6
This commit is contained in:
dan
2011-10-19 11:57:13 +00:00
parent 8653fa8504
commit d17f70a624
5 changed files with 72 additions and 72 deletions
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3
ext/fts3/fts3Int.h
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@ -429,6 +429,7 @@ int sqlite3Fts3SegReaderCursor(
#define FTS3_SEGMENT_COLUMN_FILTER 0x00000004
#define FTS3_SEGMENT_PREFIX 0x00000008
#define FTS3_SEGMENT_SCAN 0x00000010
#define FTS3_SEGMENT_FIRST 0x00000020
/* Type passed as 4th argument to SegmentReaderIterate() */
struct Fts3SegFilter {
@ -468,8 +469,8 @@ int sqlite3Fts3GetVarint32(const char *, int *);
int sqlite3Fts3VarintLen(sqlite3_uint64);
void sqlite3Fts3Dequote(char *);
void sqlite3Fts3DoclistPrev(int,char*,int,char**,sqlite3_int64*,int*,u8*);
int sqlite3Fts3EvalPhraseStats(Fts3Cursor *, Fts3Expr *, u32 *);
int sqlite3Fts3FirstFilter(sqlite3_int64, char *, int, char *);
/* fts3_tokenizer.c */
const char *sqlite3Fts3NextToken(const char *, int *);