Question about the MemoryContext

On Sat, 2006-04-22 at 18:16 -0400, Tom Lane wrote:

Gevik Babakhani <pgdev@xs4all.nl> writes:

Could someone please explain the MemoryContext switching. For example
MemoryContextSwitchTo function. How does this work?

src/backend/utils/mmgr/README might help. It's somewhat pointed at
people who've already been hacking the backend, but I think it will
give you the idea.

The basic point is that palloc() allocates memory in whichever context
was last selected as CurrentMemoryContext by MemoryContextSwitchTo.

regards, tom lane

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