Re: Lack of Sanity Checking in file 'pctcl.c' for PostgreSQL 9.4.x

Alvaro Herrera wrote:

> > Now, perhaps we could do more efforts with prodesc as well, see for
> > example compile_pltcl_function for pltcl and similarly for plperl.
> > Thoughts?
>
> Right. It would simplify the code: create a memory context child of
> TopTransactionContext, then compile the function, and if successful,
> then MemoryContextSetParent to some longer-lived context. When the
> function is invalidated, it's sufficient to delete the context and
> create a new one. Creating the context as child of
> TopTransactionContext allows you to avoid an explicit
> MemoryContextDelete() in the elog(ERROR) cases while compiling.

With some additional effort, we could get rid of perm_fmgr_info, at
least in pltcl. (That hack was introduced in a3ed622b63b and
7748e9e7e5a back in 2001 and we never actually fixed it ...)

--
Álvaro Herrera http://www.2ndQuadrant.com/
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