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Do not allow the constant-propagation optimization to apple to ON/USING clause

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terms as it does not help and it might cause downstream problems.

FossilOrigin-Name: 1bc783da63d58b05c690468b569cb2787846357b63c1100d11777666c5787bf4
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drh
2020-01-16 16:12:07 +00:00
parent 7db212a70b
commit 39df24a3f0
3 changed files with 8 additions and 8 deletions
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src/select.c
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@@ -4233,7 +4233,7 @@ static int propagateConstantExprRewrite(Walker *pWalker, Expr *pExpr){
int i;
WhereConst *pConst;
if( pExpr->op!=TK_COLUMN ) return WRC_Continue;
if( ExprHasProperty(pExpr, EP_FixedCol) ) return WRC_Continue;
if( ExprHasProperty(pExpr, EP_FixedCol|EP_FromJoin) ) return WRC_Continue;
pConst = pWalker->u.pConst;
for(i=0; i<pConst->nConst; i++){
Expr *pColumn = pConst->apExpr[i*2];