SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    QualifiedColumnsRegexpMatcher (children 1)
     Identifier 02339_db.test_table
    QualifiedColumnsRegexpMatcher (children 1)
     Identifier 02339_db.test_table
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier 02339_db.test_table