SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Literal UInt64_1
   TablesInSelectQuery (children 3)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (alias a) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 1)
           Function toLowCardinality (alias a) (children 1)
            ExpressionList (children 1)
             Literal UInt64_0
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier a (alias b)
     TableJoin (children 1)
      ExpressionList (children 1)
       Identifier a
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier a (alias c)
     TableJoin (children 1)
      Function greater (children 1)
       ExpressionList (children 2)
        Identifier b.a
        Identifier c.a
   Set
