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-rw-r--r--src/where.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/where.c b/src/where.c
index 7ca4f533f..35da4caa6 100644
--- a/src/where.c
+++ b/src/where.c
@@ -6226,8 +6226,9 @@ static SQLITE_NOINLINE Bitmask whereOmitNoopJoin(
}
}
if( pTerm<pEnd ) continue;
- WHERETRACE(0xffffffff, ("-> drop loop %c not used\n", pLoop->cId));
+ WHERETRACE(0xffffffff,("-> omit unused FROM-clause term %c\n",pLoop->cId));
m1 = MASKBIT(i)-1;
+ testcase( ((pWInfo->revMask>>1) & ~m1)!=0 );
pWInfo->revMask = (m1 & pWInfo->revMask) | ((pWInfo->revMask>>1) & ~m1);
notReady &= ~pLoop->maskSelf;
for(pTerm=pWInfo->sWC.a; pTerm<pEnd; pTerm++){