maria-developers team mailing list archive

[Michael Widenius <monty@xxxxxxxxxxxx>]

Hi!

>>>>> "Honza" == Honza Horak <hhorak@xxxxxxxxxx> writes:

Honza> Hi guys,
Honza> I'm not able to find any information about compatibility assurance of 
Honza> server side -- i.e plugin interface and libmysqld.so library. I expect 
Honza> both should have stable API at least for one minor version across bugfix 
Honza> releases, but I don't believe that libmysqld.so is able to preserve ABI 
Honza> compatibility, since the set of exported symbols there is really huge.

Honza> Can you, please, provide some simple statement (ideally as an article) 
Honza> what is your best afford and if we can expect API/ABI of 
Honza> plugin/libmysqld.so interfaces?

A lot of the symbols in libmysqld.so comes from the internals of
MariaDB and these may change from release to release.

What is not changing, except between major releases, is the structures
and calls to the libmysqlclient interface.

In other words, if you are using libmysqld.so as a standalone database
using the client interface, things are not usually changing between
minor releases.

If you are using internal structures in libmysqld, like THD, then you
have to recompile your code for each releases.

I have now adde the above in an kb article at:
https://mariadb.com/kb/en/embedded-mariadb-interface/

Regards,
Monty