Definition
/**
* Create a POSIX regex not match condition (!~*).
* Case-insensitive.
*
* Example: not_regex_imatch(col('email'), literal_string('.*@spam\\.com'))
*
* Produces: email !~* '.*@spam\.com'
*/
not_regex_imatch(Expression|string $expr, Expression|string $pattern) : OperatorCondition