SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 9)
    Identifier name
    Identifier host
    Identifier port
    Identifier index
    Identifier is_expired
    Identifier keeper_api_version
    Function and (children 1)
     ExpressionList (children 2)
      Function greaterOrEquals (children 1)
       ExpressionList (children 2)
        Identifier connected_time
        Function yesterday (children 1)
         ExpressionList
      Function lessOrEquals (children 1)
       ExpressionList (children 2)
        Identifier connected_time
        Function plus (children 1)
         ExpressionList (children 2)
          Function now (children 1)
           ExpressionList
          Function toIntervalSecond (children 1)
           ExpressionList (children 1)
            Literal UInt64_3
    Function less (children 1)
     ExpressionList (children 2)
      Function abs (children 1)
       ExpressionList (children 1)
        Function minus (children 1)
         ExpressionList (children 2)
          Identifier session_uptime_elapsed_seconds
          Function zookeeperSessionUptime (children 1)
           ExpressionList
      Literal UInt64_10
    Identifier enabled_feature_flags
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.zookeeper_connection
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier name
     Literal \'default\'
