SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function or (children 1)
     ExpressionList (children 2)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier value
        Literal \'127.0.0.1:9181\'
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier value
        Literal \'localhost:9181,localhost:19181,localhost:29181\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.server_settings
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier name
     Literal \'keeper_hosts\'
