SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier first_table (alias s)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier second_table (alias f)
     TableJoin (children 1)
      ExpressionList (children 1)
       Identifier id
   Function globalIn (children 1)
    ExpressionList (children 2)
     Identifier f.id2
     Subquery (children 1)
      SelectWithUnionQuery (children 1)
       ExpressionList (children 1)
        SelectQuery (children 3)
         ExpressionList (children 1)
          Identifier id2
         TablesInSelectQuery (children 1)
          TablesInSelectQueryElement (children 1)
           TableExpression (children 1)
            TableIdentifier second_table
         ExpressionList (children 1)
          Identifier id2
