Greetings,

Hope you are safe and doing great,

This post describes the things I've done during 15-21 June under the mentor-ship of Sergei Golubchik and Oleksandr Byelkin for GSoC-20 to implement MDEV-12326. The tasks taken up for this week was to work towards extending the parser for multi-table DELETE....RETURNING and multi-table UPDATE....RETURNING, side-by-side, thereby changing the sql_yacc.yy file, for incorporating opt_returning rule in respective query format. 

  I've also updated the test suite for multi-table UPDATE.... RETURNING and  extended the parser by adding select_result parameter in multi-update and multi-delete functions, so as to enable returning a result set possible, whenever we query with RETURNING clause.

  All the code is uploaded up to date in these remote repositories, please feel free to comment.

 

MULTI-TABLE UPDATE RETURNING:

MULTI-TABLE DELETE RETURNING: https://github.com/MariaDB/server/compare/10.5...MohammedHMateen:MDEV-12326-multi-delete-returning?expand=1

Thank you

Regards,

Mohammed Hammaad Mateen