message: Fix for index optimizer test case after change leaving filter there
diff: @@ -23,7 +23,8 @@ TEST_CASE("Test Index Scan Optimizer for Integers", "[index-optimizer-int]") {
  auto tree = helper.ParseLogicalTree("SELECT i FROM integers where i > CAST(10 AS " + int_types[idx] + ")");
  IndexScan index_scan;
  auto plan = index_scan.Optimize(move(tree));
  - REQUIRE(plan->children[0]->type == LogicalOperatorType::INDEX_SCAN);
  + REQUIRE(plan->children[0]->type == LogicalOperatorType::FILTER);
  + REQUIRE(plan->children[0]->children[0]->type == LogicalOperatorType::INDEX_SCAN);
  con.Query("DROP INDEX i_index");
  }
  }
  