Thread: Finding every use of a built-in function
Hi hackers, I'm not sure if it's the best list for my question but I have a following problem. I have an existing DB with lots of data and I need to modify the behavior of one specific built-in function. I can of course create my own function and redefine the behavior but now I need to find every single instance of the old function being used. There is dependency tracking with pg_depend but it doesn't work for built-in functions. I also tried a different approach and tried to create a C-language hook for function call but hooks also don't work for built-in functions. Do you have some advice for me? Thanks.
Hi
pá 26. 1. 2024 v 11:39 odesílatel Kurlaev Jaroslav <j.kurlaev@cft.ru> napsal:
Hi hackers,
I'm not sure if it's the best list for my question but I have a following problem.
I have an existing DB with lots of data and I need to modify the behavior of one specific
built-in function. I can of course create my own function and redefine the behavior but
now I need to find every single instance of the old function being used. There is
dependency tracking with pg_depend but it doesn't work for built-in functions.
I also tried a different approach and tried to create a C-language hook for function
call but hooks also don't work for built-in functions.
Do you have some advice for me?
plpgsq_check can show dependencies https://github.com/okbob/plpgsql_check#dependency-list
or you can write query SELECT * FROM pg_proc WHERE proname ilike '%name of your function %'
Regards
Pavel
Thanks.
> plpgsq_check can show dependencies https://github.com/okbob/plpgsql_check#dependency-list That's not exactly what I was looking for, but it's a useful tool that could help me anyway. Thanks!