Re: Memory management question

Nigel J. Andrews wrote:
>
> It's probably a pretty basic question explained in some document I haven't seen
> but...if I do something like a CreateTupleDescCopy() how do I know my memory
> context owns everything allocated without following the code all the way
> through until it returns to me?

I asked a related question recently. Here it is with Tom's response:

Tom Lane wrote:
> Joe Conway wrote:
>>Does a good primer on proper backend memory-context handling exist?
>
> The original design document is in src/backend/utils/mmgr/README;
> somebody needs to recast that into present tense and put it into the
> Developer's Guide SGML docs.
>
> If you read that and feel you understand it, next read
> executor/nodeAgg.c and see if you follow the memory management
> there...
> AFAIR that's the most complex use of short-term contexts in the
> system.

You might want to read through those to get a better understanding.

HTH,

Joe