Q:

Have any CLR functions been defined on data explorer that allow regex searches?

There are some searches that you just can't do without regex support, but...
AFAIK SQL Server doesn't support regex, but support can be added by creating CLR functions.
Has this been done?
If so, what are the function names?
If not, can it be done?
Of course, any such functions that exist should be noted on the help page.

A:

The CLR is not enabled on the SEDE SQL Server instance, and won't be for security and performance reasons.

