| Subject: | Add option to join() $argRef toallow NULLs to be considered equal |
We are upgrading Data::Table from v1.54 to 1.67, so we are catching up
on all the enhancements.
In v1.58 the join() function was patched to no longer consider two NULL
keys to be equal. With the update to v1.67, much of our code has been
broken due to the patch. I acknowledge that this is a reasonable patch,
so I am not asking you to "unpatch" the code.
Instead, I was wondering if we could take advantage of the new $argRef
variable to allow a user to set an option (i.e. allowNullJoin or
considerNullEqual) that would allow the old behavior where two NULL
values can be considered equal. In this way we do not change the
current behavior of the module but we allow developers to add the
appropriate $argRef to turn the pre-v1.58 behavior back on.
I appreciate your consideration on this matter.