How do I create a cron job to run an postgres SQL function?

Question

I assume that all I need to do is to:

1. Create an sql file e.g. nameofsqlfile.sql contents:

   perform proc_my_sql_funtion();

2. Execute thi

Answer 1

You just need to think of cronjob as running a shell command at a specified time or day.

So your first job is to work out how to run your shell command.

psql --host host.example.com --port 12345 --dbname nameofdatabase --username postgres < my.sql

You can then just add this to your crontab (I recommend you use crontab -e to avoid breaking things)

# runs your command at 00:00 every day
#
# min hour wday month mday command-to-run
    0    0    *     *    * psql --host host.example.com --port 12345 --dbname nameofdatabase < my.sql