SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    QualifiedAsterisk (children 1)
     Identifier t1
    QualifiedAsterisk (children 1)
     Identifier t2
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier table1 (alias t1)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier table2 (alias t2)
     TableJoin (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier t1_a
        Identifier t2_a
   Function and (children 1)
    ExpressionList (children 2)
     Function greater (children 1)
      ExpressionList (children 2)
       Identifier t1.a (alias t1_a)
       Literal UInt64_2
     Function greater (children 1)
      ExpressionList (children 2)
       Identifier t2.a (alias t2_a)
       Literal UInt64_4
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier all