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Ensure that comparison operators do not mess up the MEM_Dyn flag on registers

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when reverting affinity changes.

FossilOrigin-Name: 02e3c88fbf6abdcf3975fb0fb71972b0ab30da30
This commit is contained in:
drh
2015-03-31 11:42:23 +00:00
parent 116f0be024
commit bc8a6b31b6
3 changed files with 13 additions and 7 deletions
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6
src/vdbe.c
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@@ -1920,11 +1920,15 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */
testcase( pIn1->flags & MEM_Int );
testcase( pIn1->flags & MEM_Real );
sqlite3VdbeMemStringify(pIn1, encoding, 1);
testcase( (flags1&MEM_Dyn) != (pIn1->flags&MEM_Dyn) );
flags1 = (pIn1->flags & ~MEM_TypeMask) | (flags1 & MEM_TypeMask);
}
if( (pIn3->flags & MEM_Str)==0 && (pIn3->flags & (MEM_Int|MEM_Real))!=0 ){
testcase( pIn3->flags & MEM_Int );
testcase( pIn3->flags & MEM_Real );
sqlite3VdbeMemStringify(pIn3, encoding, 1);
testcase( (flags3&MEM_Dyn) != (pIn3->flags&MEM_Dyn) );
flags3 = (pIn3->flags & ~MEM_TypeMask) | (flags3 & MEM_TypeMask);
}
}
assert( pOp->p4type==P4_COLLSEQ || pOp->p4.pColl==0 );
@@ -1961,7 +1965,9 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */
}
}
/* Undo any changes made by applyAffinity() to the input registers. */
assert( (pIn1->flags & MEM_Dyn) == (flags1 & MEM_Dyn) );
pIn1->flags = flags1;
assert( (pIn3->flags & MEM_Dyn) == (flags3 & MEM_Dyn) );
pIn3->flags = flags3;
break;
}