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-rw-r--r--src/expr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/expr.c b/src/expr.c
index 819a14bce..9431c4c20 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -1271,7 +1271,7 @@ static Expr *exprDup(sqlite3 *db, Expr *p, int dupFlags, u8 **pzBuffer){
if( ExprHasProperty(p, EP_Reduced|EP_TokenOnly) ){
pNew->pWin = 0;
}else{
- pNew->pWin = sqlite3WindowDup(db, p->pWin);
+ pNew->pWin = sqlite3WindowDup(db, pNew, p->pWin);
}
if( !ExprHasProperty(p, EP_TokenOnly|EP_Leaf) ){
if( pNew->op==TK_SELECT_COLUMN ){