Greetings,
Hope you are safe and doing great,

This post describes the things I've done in my second week [ 11-17 May ] of Community Bonding Period under the mentor-ship of Sergei Golubchik and Oleksandr Byelkin for GSoC-20. Tasks done this week were mostly the continuation of the leftover tasks from the previous week and some related study.

Things I've done include:

1: I was caught up in analysing how was  DELETE .... RETURNING implemented, which led me to read from:

• sp_head.cc : this made me understand that sp actually meant stored procedures but there is another called PS which I'm yet to figure out.

• sql_parse.cc : from here I understood that delete return as actually { Analyse->Delete->Return } and all the logic for returning is executed if(lex->has_returning()).

2: Though I've raised the pull request, MDEV-14558 is not yet completely tested as it does not include tests for mysql \s, moreover, I'm facing problems to escape the backslash inorder to write a test-case for mysql \s.

Regards,
Mohammed Hammaad Mateen