Обсуждение: Storing a plan to disc...

Hi!

I'm new to PostgreSQL (and C) and what I'm trying to do is to store a
query plan on disc (in a binary file).
My approach is to use SPI functions to get the query plan and then
transform it into a 'storable' format (Replacing the pointers with
actual values).

Is there any other way to do this? Is my approach OK?
The sure thing is that it is a messy task!

Thanks in advance,
ntinoas

"Katsaros Kwn/nos" <ntinos@aueb.gr> writes:
> I'm new to PostgreSQL (and C) and what I'm trying to do is to store a
> query plan on disc (in a binary file).
> My approach is to use SPI functions to get the query plan and then
> transform it into a 'storable' format (Replacing the pointers with
> actual values).
> Is there any other way to do this?

I'd look at extending the outfuncs/readfuncs code to deal with all the
node types used in plan trees, and then store text strings instead of
binary.

            regards, tom lane