Re: [Maria-developers] Restarting cooperation of Percona and Monty Programming AB

Oleg Tsarev writes:

I review your changes and agree, thank you very much. Now I want include with patch to Percona-Server (rnt-branch). How can I respect licence questions? Simle add COPYING.patch.name file? Something more?

What I did with some previous patches for xtradb that I sent back to Percona was to grant Percona a BSD (three-clause) license to the changes. I'm happy to do the same for this patch also. And yes, adding COPYING.patch.name sounds like a good idea also. I don't think there is anything more needed. And thanks for review! - Kristian.

Best regards, Oleg

2011/1/4 Kristian Nielsen :

...

Michael Widenius writes:

...

...

...

...

>> "Kristian" == Kristian Nielsen writes:

<cut>

Kristian> Anyway, I fixed the patch, added test cases, and merged into MariaDB. It is Kristian> pushed here:

Kristian>     lp:~knielsen/maria/5.2-percona-row_based_replication_without_primary_key

Kristian> Here is the commit message:

Kristian>   Merge Percona patch row_based_replication_without_primary_key.patch into MariaDB.

Kristian>   This patch improves the selection of index to use to apply row-based Kristian>   DELETE and UPDATE events on tables with no primary key (original code Kristian>   picks the first index unconditionally). Kristian>   If ANALYZE TABLE is done, the index cardinalities will be compared and Kristian>   the best index will be used.

Kristian>   Fixes some problems in the original patch:

Kristian>    - Without ANALYZE TABLE, rec_per_key statistics is not available; in this Kristian>      case the original patch could choose a really bad index, even ignoring Kristian>      a primary key.

Kristian>    - The original patch did not consider multi-column keys correctly, and Kristian>      could thus pick a less desirable single-column key over a good Kristian>      multi-column index.

Kristian>   Also fixes Bug#58997, and adds test cases.

Kristian> Monty, how do I include it in our percona tree?, can I just push here:

Kristian>     lp:~maria-captains/maria/5.2-percona

Yes, feel free to push if no one from Percona has any problems with your patch.

So, any objections or comments from Percona on this patch?

I've included the patch below for convenience.

 - Kristian.

-- Oleg Tsarev, Software Engineer, Percona Inc.