SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Identifier distr1.id
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier distr1
   Function in (children 1)
    ExpressionList (children 2)
     Identifier distr1.id
     Subquery (children 1)
      SelectWithUnionQuery (children 1)
       ExpressionList (children 1)
        SelectQuery (children 3)
         ExpressionList (children 1)
          Identifier distr1.id
         TablesInSelectQuery (children 2)
          TablesInSelectQueryElement (children 1)
           TableExpression (children 1)
            TableIdentifier distr1
          TablesInSelectQueryElement (children 2)
           TableExpression (children 1)
            TableIdentifier distr2
           TableJoin (children 1)
            Function equals (children 1)
             ExpressionList (children 2)
              Identifier distr1.id
              Identifier distr2.id
         Function greater (children 1)
          ExpressionList (children 2)
           Identifier distr1.id
           Literal UInt64_0