Re: I think that my data is saved correctly, but when printing again,other data appears

On 10/27/19 8:01 PM, Yessica Brinkmann wrote:
> Thank you so much for the answers.
> By telling me this: "MemoryContextStrdup enables you to create a copy of
> a string in an explicitly specified memory context." I better understood
> the function of MemoryContextStrdup.
> And thank you very much to Mr. Jony Cohen for giving me the reference of
> his work. I really was already researching about his work, and I
> included it in the state of the art of my thesis, but I didn't look at
> the source code.
> I will be looking at the source code for a help, and especially in this
> case to see for the moment, the maintenance of the context for its
> subsequent restoration.

For better understanding of how Postgres manages memory, you might want
to also read this:

https://github.com/postgres/postgres/blob/master/src/backend/utils/mmgr/README

and possibly browse through this:

https://github.com/postgres/postgres/blob/master/src/backend/utils/mmgr/mcxt.c

HTH,

Joe
--
Crunchy Data - http://crunchydata.com
PostgreSQL Support for Secure Enterprises
Consulting, Training, & Open Source Development