I know it\'s highly unrecommended,
I know that it\'s an issue with performance, speed, etc, but it\'s for an integration, and they only are doing their updates via m
You can execute external script via "sys_exec" command from your trigger. The trick is to write that script the non-blocking way, so it spawns background process that do the work asynchronously, and the main process finishes right away.
For example something like this:
#!/bin/sh
nohup curl(or wget) http://www.example.com ...other_post_parameters... &
You need to make sure though, that you don't create too many simultaneous processes. That could be done in the trigger (for example it may write last execution time to some table, and then check if some amount of time has passed), or in shell script (it can create/delete some flag file that would indicate running proceess).