[HACKERS] how to determine clause for new keyword, how to add new clause in gram.y

[Pankaj Bagul]

Please tell me, if want to add 'selectivity' keyword, which clause will it
categorize ?
Can you please tell me in detail, how should i modify gram.y, as I am new
to parser writing ? and use it thereafter.

Thank you.


-- 
Pankaj A. Bagul