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| author | drh <> | 2022-04-12 13:46:21 +0000 |
|---|---|---|
| committer | drh <> | 2022-04-12 13:46:21 +0000 |
| commit | a70782407d12bae34240167814b49e1593048aca (patch) | |
| tree | b0f819f170a1837910d99659e40e6b8570c49a69 /src | |
| parent | b087de063bed22932287aff4f12a2e5a3083aa8d (diff) | |
| download | sqlite-a70782407d12bae34240167814b49e1593048aca.tar.gz sqlite-a70782407d12bae34240167814b49e1593048aca.zip | |
Always explicitly set each table cursor to NullRow before doing the RIGHT-JOIN
unmatched row pass. This is a cheap opcode, and it adds an extra layer of
defense against incorrect results.
FossilOrigin-Name: a3d14e61ca22167296fee125a3e9aa63413408955e03bb3f9d85fa9f22df1b79
Diffstat (limited to 'src')
| -rw-r--r-- | src/where.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/src/where.c b/src/where.c index f1d3ad265..288365331 100644 --- a/src/where.c +++ b/src/where.c @@ -6180,13 +6180,11 @@ void sqlite3WhereEnd(WhereInfo *pWInfo){ for(k=0; k<i; k++){ int iIdxCur; mAll |= pWInfo->a[k].pWLoop->maskSelf; + sqlite3VdbeAddOp1(v, OP_NullRow, pWInfo->a[k].iTabCur); iIdxCur = pWInfo->a[k].iIdxCur; if( iIdxCur ){ sqlite3VdbeAddOp1(v, OP_NullRow, iIdxCur); } - if( pWInfo->a[k].pWLoop->wsFlags & WHERE_VIRTUALTABLE ){ - sqlite3VdbeAddOp1(v, OP_NullRow, pWInfo->a[k].iTabCur); - } } mAll |= pLoop->maskSelf; for(k=0; k<pWC->nTerm; k++){ |