SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t1_00826
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier t2_00826
     TableJoin
   Function and (children 1)
    ExpressionList (children 2)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier t1_00826.a
       Identifier t2_00826.a
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier t1_00826.b
       Identifier t2_00826.b
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier all
