SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Function arrayElement (children 1)
     ExpressionList (children 2)
      Identifier m1
      Literal \'aaa\'
    Function arrayElement (children 1)
     ExpressionList (children 2)
      Identifier m2
      Literal \'aaa\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t_map_02014