foldLeft again

Signed-off-by: Haoyang Li <[email protected]>

sql-plugin/src/main/scala/org/apache/spark/sql/rapids/stringFunctions.scala

@@ -1247,26 +1247,15 @@ case class GpuContainsAny(input: Expression, targets: Seq[UTF8String])
     val boolCvs = withResource(ColumnVector.fromUTF8Strings(targetsBytes: _*)) { targetsCv =>
       input.getBase.stringContains(targetsCv)
     }
-    // withResource(boolCvs.tail) { _ =>
-    //   // boolCvs.head and intermediate values are closed within the withResource in the lambda
-    //   boolCvs.tail.foldLeft(boolCvs.head)((l, r) => withResource(l) { _ => l.or(r)})
-    // }
-    var ret: ColumnVector = null
-    closeOnExcept(boolCvs) { _ =>
-      boolCvs.indices.foreach { i =>
-        if (ret == null) {
-          ret = boolCvs(i)
-          boolCvs(i) = null
-        } else {
-          val tmp = ret.or(boolCvs(i))
-          ret.close()
-          ret = tmp
-          boolCvs(i).close()
-          boolCvs(i) = null
+    closeOnExcept(boolCvs.tail) { _ =>
+      boolCvs.tail.foldLeft(boolCvs.head) {
+        (l, r) => withResource(l) { _ =>
+          withResource(r) { _ =>
+            l.or(r)
+          }
         }
       }
     }
-    ret
   }
 }