SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Identifier key
    Function count (alias cnt) (children 1)
     ExpressionList (children 1)
      Literal UInt64_1
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Identifier data.key
          TablesInSelectQuery (children 2)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             Subquery (alias data) (children 1)
              SelectWithUnionQuery (children 1)
               ExpressionList (children 1)
                SelectQuery (children 2)
                 ExpressionList (children 1)
                  Identifier key
                 TablesInSelectQuery (children 1)
                  TablesInSelectQueryElement (children 1)
                   TableExpression (children 1)
                    TableIdentifier left (alias s)
           TablesInSelectQueryElement (children 2)
            TableExpression (children 1)
             Subquery (alias promo) (children 1)
              SelectWithUnionQuery (children 1)
               ExpressionList (children 1)
                SelectQuery (children 3)
                 ExpressionList (children 1)
                  Identifier key
                 TablesInSelectQuery (children 1)
                  TablesInSelectQueryElement (children 1)
                   TableExpression (children 1)
                    TableIdentifier right
                 ExpressionList (children 1)
                  Identifier key
            TableJoin (children 1)
             Function equals (children 1)
              ExpressionList (children 2)
               Identifier promo.key
               Identifier data.key
   ExpressionList (children 1)
    Identifier key
   Function greater (children 1)
    ExpressionList (children 2)
     Function count (children 1)
      ExpressionList (children 1)
       Literal UInt64_1
     Literal UInt64_1