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Overview
| Comment: | Fix a performance regression in matchinfo(). |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | fa37d8eb7cd8049689068af2a80fe2cb |
| User & Date: | dan 2010-12-10 17:06:48 |
Context
|
2010-12-15
| ||
| 18:54 | When registering the built-in LIKE and GLOB functions, make sure that they are tagged with SQLITE_UTF8 so that if other application-defined LIKE and GLOB implementations are provided for UTF16, then the appropriate function will be selected. check-in: e1660764 user: drh tags: trunk | |
|
2010-12-10
| ||
| 17:06 | Fix a performance regression in matchinfo(). check-in: fa37d8eb user: dan tags: trunk | |
|
2010-12-09
| ||
| 19:15 | Add support for the SQLITE_DEFAULT_FOREIGN_KEYS compile-time option. check-in: c959945a user: drh tags: trunk | |
Changes
Changes to ext/fts3/fts3.c.
3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 |
Fts3Expr *pExpr, /* Access this expressions doclist */
sqlite3_int64 iDocid, /* Docid associated with requested pos-list */
int iCol /* Column of requested pos-list */
){
assert( pExpr->isLoaded );
if( pExpr->aDoclist ){
char *pEnd = &pExpr->aDoclist[pExpr->nDoclist];
char *pCsr = pExpr->pCurrent;
assert( pCsr );
while( pCsr<pEnd ){
if( pExpr->iCurrent<iDocid ){
fts3PoslistCopy(0, &pCsr);
if( pCsr<pEnd ){
fts3GetDeltaVarint(&pCsr, &pExpr->iCurrent);
}
pExpr->pCurrent = pCsr;
|
> > | > > > | > > |
3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 |
Fts3Expr *pExpr, /* Access this expressions doclist */
sqlite3_int64 iDocid, /* Docid associated with requested pos-list */
int iCol /* Column of requested pos-list */
){
assert( pExpr->isLoaded );
if( pExpr->aDoclist ){
char *pEnd = &pExpr->aDoclist[pExpr->nDoclist];
char *pCsr;
if( pExpr->pCurrent==0 ){
pExpr->pCurrent = pExpr->aDoclist;
pExpr->iCurrent = 0;
pExpr->pCurrent += sqlite3Fts3GetVarint(pExpr->pCurrent,&pExpr->iCurrent);
}
pCsr = pExpr->pCurrent;
assert( pCsr );
while( pCsr<pEnd ){
if( pExpr->iCurrent<iDocid ){
fts3PoslistCopy(0, &pCsr);
if( pCsr<pEnd ){
fts3GetDeltaVarint(&pCsr, &pExpr->iCurrent);
}
pExpr->pCurrent = pCsr;
|
Changes to ext/fts3/fts3_snippet.c.
222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 ... 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 ... 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 |
} /* ** This is an fts3ExprIterate() callback used while loading the doclists ** for each phrase into Fts3Expr.aDoclist[]/nDoclist. See also ** fts3ExprLoadDoclists(). */ static int fts3ExprLoadDoclistsCb1(Fts3Expr *pExpr, int iPhrase, void *ctx){ int rc = SQLITE_OK; LoadDoclistCtx *p = (LoadDoclistCtx *)ctx; UNUSED_PARAMETER(iPhrase); p->nPhrase++; p->nToken += pExpr->pPhrase->nToken; ................................................................................ rc = fts3ExprNearTrim(pExpr); } } return rc; } /* ** This is an fts3ExprIterate() callback used while loading the doclists ** for each phrase into Fts3Expr.aDoclist[]/nDoclist. See also ** fts3ExprLoadDoclists(). */ static int fts3ExprLoadDoclistsCb2(Fts3Expr *pExpr, int iPhrase, void *ctx){ UNUSED_PARAMETER(iPhrase); UNUSED_PARAMETER(ctx); if( pExpr->aDoclist ){ pExpr->pCurrent = pExpr->aDoclist; pExpr->iCurrent = 0; pExpr->pCurrent += sqlite3Fts3GetVarint(pExpr->pCurrent, &pExpr->iCurrent); } return SQLITE_OK; } /* ** Load the doclists for each phrase in the query associated with FTS3 cursor ** pCsr. ** ** If pnPhrase is not NULL, then *pnPhrase is set to the number of matchable ** phrases in the expression (all phrases except those directly or ** indirectly descended from the right-hand-side of a NOT operator). If ................................................................................ Fts3Cursor *pCsr, /* Fts3 cursor for current query */ int *pnPhrase, /* OUT: Number of phrases in query */ int *pnToken /* OUT: Number of tokens in query */ ){ int rc; /* Return Code */ LoadDoclistCtx sCtx = {0,0,0}; /* Context for fts3ExprIterate() */ sCtx.pCsr = pCsr; rc = fts3ExprIterate(pCsr->pExpr, fts3ExprLoadDoclistsCb1, (void *)&sCtx); if( rc==SQLITE_OK ){ (void)fts3ExprIterate(pCsr->pExpr, fts3ExprLoadDoclistsCb2, 0); } if( pnPhrase ) *pnPhrase = sCtx.nPhrase; if( pnToken ) *pnToken = sCtx.nToken; return rc; } static int fts3ExprPhraseCountCb(Fts3Expr *pExpr, int iPhrase, void *ctx){ (*(int *)ctx)++; |
| < < < < < < < < < < < < < < < < | < < < |
222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 ... 242 243 244 245 246 247 248 249 250 251 252 253 254 255 ... 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 |
}
/*
** This is an fts3ExprIterate() callback used while loading the doclists
** for each phrase into Fts3Expr.aDoclist[]/nDoclist. See also
** fts3ExprLoadDoclists().
*/
static int fts3ExprLoadDoclistsCb(Fts3Expr *pExpr, int iPhrase, void *ctx){
int rc = SQLITE_OK;
LoadDoclistCtx *p = (LoadDoclistCtx *)ctx;
UNUSED_PARAMETER(iPhrase);
p->nPhrase++;
p->nToken += pExpr->pPhrase->nToken;
................................................................................
rc = fts3ExprNearTrim(pExpr);
}
}
return rc;
}
/*
** Load the doclists for each phrase in the query associated with FTS3 cursor
** pCsr.
**
** If pnPhrase is not NULL, then *pnPhrase is set to the number of matchable
** phrases in the expression (all phrases except those directly or
** indirectly descended from the right-hand-side of a NOT operator). If
................................................................................
Fts3Cursor *pCsr, /* Fts3 cursor for current query */
int *pnPhrase, /* OUT: Number of phrases in query */
int *pnToken /* OUT: Number of tokens in query */
){
int rc; /* Return Code */
LoadDoclistCtx sCtx = {0,0,0}; /* Context for fts3ExprIterate() */
sCtx.pCsr = pCsr;
rc = fts3ExprIterate(pCsr->pExpr, fts3ExprLoadDoclistsCb, (void *)&sCtx);
if( pnPhrase ) *pnPhrase = sCtx.nPhrase;
if( pnToken ) *pnToken = sCtx.nToken;
return rc;
}
static int fts3ExprPhraseCountCb(Fts3Expr *pExpr, int iPhrase, void *ctx){
(*(int *)ctx)++;
|