ygerzhedovich commented on code in PR #1418:
URL: https://github.com/apache/ignite-3/pull/1418#discussion_r1049661211


##########
modules/runner/src/integrationTest/java/org/apache/ignite/internal/sql/engine/util/QueryChecker.java:
##########
@@ -276,13 +278,20 @@ public QueryChecker ordered() {
      * @return This.
      */
     public QueryChecker withParams(Object... params) {
+        // let's interpret null array as simple single null.
+        if (params == null) {
+            params = NULL_AS_VARARG;
+        }
+
         this.params = params;
 
         return this;
     }
 
     /**
-     * Sets returns.
+     * This method add the given row to the list of expected, the order of 
enumeration does not matter unless #ordered() is set.
+     *
+     * @param res Array with values one returning tuple. {@code null} array 
will be interpreted as single-column-null row,

Review Comment:
   thanks



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