1 files changed, 1 insertions, 0 deletions
diff --git a/src/where.c b/src/where.c
index bda2a801e..8ec6018bc 100644
--- a/src/where.c
+++ b/src/where.c
@@ -222,6 +222,7 @@ static int whereClauseInsert(WhereClause *pWC, Expr *p, u8 wtFlags){
       sqlite3DbFree(db, pOld);
     }
     pWC->nSlot = sqlite3DbMallocSize(db, pWC->a)/sizeof(pWC->a[0]);
+    memset(&pWC->a[pWC->nTerm], 0, sizeof(pWC->a[0])*(pWC->nSlot-pWC->nTerm));
   }
   pTerm = &pWC->a[idx = pWC->nTerm++];
   if( p && ExprHasProperty(p, EP_Unlikely) ){