Re: Null-safe GiST interface (proposal)

Oleg Bartunov <oleg@sai.msu.su> writes:
>  2. For union and picksplit we propose to clean up NULLs from array of
>     keys, so support  of arguments 'passed-by-value' will not require
>     changes of user interface. It would require some modification of current
>     algorithm of splitting, but this wouldn't  be a complex task for us.

Seems reasonable.  Would there ever be a union or picksplit method that
would want to do anything with nulls except ignore them?  I can't think
of a reason to do differently, so you're just centralizing the logic to
ignore nulls in these methods.
        regards, tom lane