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If a token within an FTS query is prefixed with a '^' character, it must be the first token in a column of data to match.

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FossilOrigin-Name: 63ac33c860eb32ce96699f06bf83121cec2ffaca
This commit is contained in:
dan
2011-10-18 19:39:41 +00:00
parent a986d33fd3
commit 3f1ea8d114
9 changed files with 183 additions and 14 deletions
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17
ext/fts3/fts3_expr.c
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@ -180,9 +180,21 @@ static int getNextToken(
pRet->pPhrase->aToken[0].isPrefix = 1;
iEnd++;
}
if( !sqlite3_fts3_enable_parentheses && iStart>0 && z[iStart-1]=='-' ){
pParse->isNot = 1;
while( 1 ){
if( !sqlite3_fts3_enable_parentheses
&& iStart>0 && z[iStart-1]=='-'
){
pParse->isNot = 1;
iStart--;
}else if( iStart>0 && z[iStart-1]=='^' ){
pRet->pPhrase->aToken[0].bFirst = 1;
iStart--;
}else{
break;
}
}
}
nConsumed = iEnd;
}
@ -281,6 +293,7 @@ static int getNextString(
pToken->n = nByte;
pToken->isPrefix = (iEnd<nInput && zInput[iEnd]=='*');
pToken->bFirst = (iBegin>0 && zInput[iBegin-1]=='^');
nToken = ii+1;
}
}