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Overview
| Comment: | Fix an fts4 problem to do with the handling of phrases that contain zero tokens. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
caba5be0b2bdaf4eb4af9af267c0c22d |
| User & Date: | dan 2015-04-21 12:06:53 |
Context
|
2015-04-21
| ||
| 15:16 | Change an assert() in the aggregate query code generator into a testcase(). check-in: d1e6bc91 user: drh tags: trunk | |
| 12:06 | Fix an fts4 problem to do with the handling of phrases that contain zero tokens. check-in: caba5be0 user: dan tags: trunk | |
| 03:13 | Fix some identifier name de-quoting issues in the foreign key and trigger logic. check-in: 59e92bd9 user: drh tags: trunk | |
Changes
Changes to ext/fts3/fts3.c.
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static void fts3EvalStartReaders(
Fts3Cursor *pCsr, /* FTS Cursor handle */
Fts3Expr *pExpr, /* Expression to initialize phrases in */
int *pRc /* IN/OUT: Error code */
){
if( pExpr && SQLITE_OK==*pRc ){
if( pExpr->eType==FTSQUERY_PHRASE ){
int i;
int nToken = pExpr->pPhrase->nToken;
for(i=0; i<nToken; i++){
if( pExpr->pPhrase->aToken[i].pDeferred==0 ) break;
}
pExpr->bDeferred = (i==nToken);
*pRc = fts3EvalPhraseStart(pCsr, 1, pExpr->pPhrase);
}else{
fts3EvalStartReaders(pCsr, pExpr->pLeft, pRc);
fts3EvalStartReaders(pCsr, pExpr->pRight, pRc);
pExpr->bDeferred = (pExpr->pLeft->bDeferred && pExpr->pRight->bDeferred);
}
}
|
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static void fts3EvalStartReaders(
Fts3Cursor *pCsr, /* FTS Cursor handle */
Fts3Expr *pExpr, /* Expression to initialize phrases in */
int *pRc /* IN/OUT: Error code */
){
if( pExpr && SQLITE_OK==*pRc ){
if( pExpr->eType==FTSQUERY_PHRASE ){
int nToken = pExpr->pPhrase->nToken;
if( nToken ){
int i;
for(i=0; i<nToken; i++){
if( pExpr->pPhrase->aToken[i].pDeferred==0 ) break;
}
pExpr->bDeferred = (i==nToken);
}
*pRc = fts3EvalPhraseStart(pCsr, 1, pExpr->pPhrase);
}else{
fts3EvalStartReaders(pCsr, pExpr->pLeft, pRc);
fts3EvalStartReaders(pCsr, pExpr->pRight, pRc);
pExpr->bDeferred = (pExpr->pLeft->bDeferred && pExpr->pRight->bDeferred);
}
}
|
Added test/fts3expr5.test.
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# 2006 September 9 # # The author disclaims copyright to this source code. In place of # a legal notice, here is a blessing: # # May you do good and not evil. # May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #************************************************************************* # This file implements regression tests for SQLite library. The # focus of this script is testing the FTS3 module. # set testdir [file dirname $argv0] source $testdir/tester.tcl set testprefix fts3expr5 # If SQLITE_ENABLE_FTS3 is defined, omit this file. ifcapable !fts3 { finish_test return } #------------------------------------------------------------------------- # Various forms of empty phrase expressions. # do_execsql_test 1.0 { CREATE VIRTUAL TABLE t0 USING fts3(x); SELECT rowid FROM t0 WHERE x MATCH ''; } {} do_execsql_test 1.1 { SELECT rowid FROM t0 WHERE x MATCH '""'; } {} do_execsql_test 1.2 { SELECT rowid FROM t0 WHERE x MATCH '"" ""'; } {} do_execsql_test 1.3 { SELECT rowid FROM t0 WHERE x MATCH '"" OR ""'; } {} do_execsql_test 1.4 { SELECT rowid FROM t0 WHERE x MATCH '"" NOT ""'; } {} do_execsql_test 1.5 { SELECT rowid FROM t0 WHERE x MATCH '""""'; } {} finish_test |