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Overview
| Comment: | Fix an issue (discovered by OSSFuzz) in the enhanced OP_Concat operator from check-in [713caa382cf7dd] earlier today. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
3e897702f8f789fe5119b9042fb93eca |
| User & Date: | drh 2019-05-02 00:52:50 |
Context
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2019-05-02
| ||
| 01:41 | The "LIKE Optimization" (which converts a LIKE into a BETWEEN operator that is able to use an index) does not work and cannot be used if the collating sequence of the column is not TEXT and if the pattern starts with a "+" sign. This is another case of ticket [c94369cae9b561b1f996d005]. The new test case was discovered by Manuel Rigger. check-in: b043a54c user: drh tags: trunk | |
| 00:52 | Fix an issue (discovered by OSSFuzz) in the enhanced OP_Concat operator from check-in [713caa382cf7dd] earlier today. check-in: 3e897702 user: drh tags: trunk | |
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2019-05-01
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| 19:01 | Add a test case for ticket [ae0f637bddc5290b44669e066a]. check-in: ece48169 user: drh tags: trunk | |
Changes
Changes to src/vdbe.c.
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testcase( pIn2->flags & MEM_Null );
if( (flags1 | pIn2->flags) & MEM_Null ){
sqlite3VdbeMemSetNull(pOut);
break;
}
if( (flags1 & (MEM_Str|MEM_Blob))==0 ){
if( sqlite3VdbeMemStringify(pIn1,encoding,0) ) goto no_mem;
}else if( (flags1 & MEM_Zero)!=0 ){
if( sqlite3VdbeMemExpandBlob(pIn1) ) goto no_mem;
}
flags2 = pIn2->flags;
if( (flags2 & (MEM_Str|MEM_Blob))==0 ){
if( sqlite3VdbeMemStringify(pIn2,encoding,0) ) goto no_mem;
}else if( (flags2 & MEM_Zero)!=0 ){
if( sqlite3VdbeMemExpandBlob(pIn2) ) goto no_mem;
}
nByte = pIn1->n + pIn2->n;
if( nByte>db->aLimit[SQLITE_LIMIT_LENGTH] ){
goto too_big;
}
if( sqlite3VdbeMemGrow(pOut, (int)nByte+2, pOut==pIn2) ){
goto no_mem;
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> > > > |
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testcase( pIn2->flags & MEM_Null );
if( (flags1 | pIn2->flags) & MEM_Null ){
sqlite3VdbeMemSetNull(pOut);
break;
}
if( (flags1 & (MEM_Str|MEM_Blob))==0 ){
if( sqlite3VdbeMemStringify(pIn1,encoding,0) ) goto no_mem;
flags1 = pIn1->flags & ~MEM_Str;
}else if( (flags1 & MEM_Zero)!=0 ){
if( sqlite3VdbeMemExpandBlob(pIn1) ) goto no_mem;
flags1 = pIn1->flags & ~MEM_Str;
}
flags2 = pIn2->flags;
if( (flags2 & (MEM_Str|MEM_Blob))==0 ){
if( sqlite3VdbeMemStringify(pIn2,encoding,0) ) goto no_mem;
flags2 = pIn2->flags & ~MEM_Str;
}else if( (flags2 & MEM_Zero)!=0 ){
if( sqlite3VdbeMemExpandBlob(pIn2) ) goto no_mem;
flags2 = pIn2->flags & ~MEM_Str;
}
nByte = pIn1->n + pIn2->n;
if( nByte>db->aLimit[SQLITE_LIMIT_LENGTH] ){
goto too_big;
}
if( sqlite3VdbeMemGrow(pOut, (int)nByte+2, pOut==pIn2) ){
goto no_mem;
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