Greetings, Hope you are safe and doing great, This post describes the things I've done during 1-7 June under the mentor-ship of Sergei Golubchik and Oleksandr Byelkin for GSoC-20. The tasks taken up for this week Greetings mentors, I've realized that to extend the parser for multi delete, I should be changing the sql_yacc.yy file, for incorporating opt_returning rule in multi-delete. opt_returning rule works completely fine with single table delete, but to tweak it to adapt for multi-delete, required me to learn some bison grammar syntax and semantics and that took me a couple of days. Moreover everytime I made changes to the grammar, the server used to crash rendering all changes invalid. I'll try to push the code that was triggering crashes, shortly. Thank you Regards, Mohammed Hammaad Mateen