On Tue, Dec 19, 2017 at 6:54 AM, Alvaro Herrera <alvhe...@2ndquadrant.com> wrote: > Paul Ramsey wrote: > >> Our use of MemoryContextCreate is solely in order to get use >> MemoryContextDelete as a callback so that, at the end of a statement, >> we can clean up externally allocated memory that we're holding in a >> cache. > > You should not use MemoryContextCreate at all -- it's somewhat of an > internal API, as you could guess by looking at the weird arguments that > you're forced into passing. > > Instead, the interface you're supposed to use is AllocSetContextCreate. > Just make sure you attach your new context to one which has the right > lifetime for your usage -- in your case ISTM the parent should be > PortalContext, which makes it go away when the current portal (query) is > gone.
Thanks, it looks like PortalContext will serve perfectly. P
