InsertQuery   (children 3)
 Identifier distinct_in_order
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 4)
    ExpressionList (children 1)
     Asterisk
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier distinct_cardinality_low
    ExpressionList (children 1)
     OrderByElement (children 1)
      Identifier high
    Set
 Set
