InsertQuery   (children 2)
 Identifier bloom_filter_lc_null_types_test
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 1)
    ExpressionList (children 3)
     Literal UInt64_0 (alias order_key)
     Literal NULL (alias str)
     Literal NULL (alias fixed_string)
