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Overview
| Comment: | Remove an ALWAYS() from a branch that is not always taken. The test case found by OSSFuzz has been added to TH3. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
5c7dab85535ac42c021977dbd4a39cef |
| User & Date: | drh 2018-12-12 20:11:23 |
Context
|
2018-12-12
| ||
| 21:34 | Fix another problem found by Matthew Denton's new fuzzer. check-in: 2b690dbd user: drh tags: trunk | |
| 20:11 | Remove an ALWAYS() from a branch that is not always taken. The test case found by OSSFuzz has been added to TH3. check-in: 5c7dab85 user: drh tags: trunk | |
| 11:23 | OSSFuzz found a case where an assert() inside sqlite3ExprCompare() can be true. Test case added to TH3. check-in: 23b62fb1 user: drh tags: trunk | |
Changes
Changes to src/expr.c.
4774 4775 4776 4777 4778 4779 4780 4781 4782 4783 4784 4785 4786 4787 4788 |
}else if( pA->op==TK_COLLATE ){
if( sqlite3_stricmp(pA->u.zToken,pB->u.zToken)!=0 ) return 2;
}else if( strcmp(pA->u.zToken,pB->u.zToken)!=0 ){
return 2;
}
}
if( (pA->flags & EP_Distinct)!=(pB->flags & EP_Distinct) ) return 2;
if( ALWAYS((combinedFlags & EP_TokenOnly)==0) ){
if( combinedFlags & EP_xIsSelect ) return 2;
if( (combinedFlags & EP_FixedCol)==0
&& sqlite3ExprCompare(pParse, pA->pLeft, pB->pLeft, iTab) ) return 2;
if( sqlite3ExprCompare(pParse, pA->pRight, pB->pRight, iTab) ) return 2;
if( sqlite3ExprListCompare(pA->x.pList, pB->x.pList, iTab) ) return 2;
if( pA->op!=TK_STRING
&& pA->op!=TK_TRUEFALSE
|
| |
4774 4775 4776 4777 4778 4779 4780 4781 4782 4783 4784 4785 4786 4787 4788 |
}else if( pA->op==TK_COLLATE ){
if( sqlite3_stricmp(pA->u.zToken,pB->u.zToken)!=0 ) return 2;
}else if( strcmp(pA->u.zToken,pB->u.zToken)!=0 ){
return 2;
}
}
if( (pA->flags & EP_Distinct)!=(pB->flags & EP_Distinct) ) return 2;
if( (combinedFlags & EP_TokenOnly)==0 ){
if( combinedFlags & EP_xIsSelect ) return 2;
if( (combinedFlags & EP_FixedCol)==0
&& sqlite3ExprCompare(pParse, pA->pLeft, pB->pLeft, iTab) ) return 2;
if( sqlite3ExprCompare(pParse, pA->pRight, pB->pRight, iTab) ) return 2;
if( sqlite3ExprListCompare(pA->x.pList, pB->x.pList, iTab) ) return 2;
if( pA->op!=TK_STRING
&& pA->op!=TK_TRUEFALSE
|