Re: Pulling data from Postgres DB table for every 5 seconds.

Rob Sargent <robjsargent@xxxxxxxxx> · Wed, 9 Jan 2019 11:01:23 -0700



    On 1/9/19 10:21 AM, github kran wrote:

    
          Thanks for your reply Rob. Reading the below
            documentation link says the EVENT trigger is only supported
            for DDL commands. Is it not correct ?.
          

            1) https://www.postgresql.org/docs/9.6/event-trigger-definition.html 

              (An event
                  trigger fires whenever the event with which it is
                  associated occurs in the database in which it is
                  defined. Currently, the only supported events are ddl_command_start, ddl_command_end, table_rewrite and sql_drop. Support for
                  additional events may be added in future releases.).

              
            2) Doesnt the
                trigger slow down inserts/update we are doing to the
                table ?. Does it slow down if we are reading the data
                using the API when we have a trigger in place ?.
          
        
    Ah, right you are.  Are triggers off the table?  You would want to
    write the trigger function in some (trusted?) language with access
    to the outside