Michael Paquier <michael.paqu...@gmail.com> writes:
> Cleanup $subject has been raised a couple of times, like one year ago here:
> https://www.postgresql.org/message-id/cab7npqrxvq+q66ufzd9wa5uaftyn4wauadbjxkfrync96kf...@mail.gmail.com
> And more recently here while working on the NULL checks for malloc():
> https://www.postgresql.org/message-id/CAB7nPqR7ozfCqc6C=2+ctCcnuehTZ-vTDQ8MMhY=bqyet0h...@mail.gmail.com

> Attached are a set of patches to replace those memory system calls by
> proper memory contexts:
> - 0001 does the cleanup work for pltcl
> - 0002 does this cleanup for plperl

I looked at 0001.  It seemed to me that it wasn't that useful to add a
context unless we did something about actually freeing it; otherwise
we're just increasing the amount of memory leaked after a function
redefinition.  However, it proved pretty easy to shoehorn in a refcounting
mechanism like plpgsql has, so I did that and pushed it.

Off to look at 0002 next.

                        regards, tom lane

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