[mythtv-users] Duplicate detection

[Michael T. Dean]

On 09/20/2016 11:03 AM, Jan Ceuleers wrote:
> On 20/09/16 15:14, Michael T. Dean wrote:
>> On 09/19/2016 04:24 AM, Jan Ceuleers wrote:
>>> update program set programid="";
>> BTW, if your program IDs are done correctly, this is not required (it's
>> actually a bad thing).  If the program IDs specify an authority (i.e.
>> they include a '/', making it an ID in the form "authority/ID"), the ID
>> is only used for comparison against other programs with the same
>> authority.
> IIUC this partitions duplicate matching, such that duplicates would be
> found for repeats on channels whose metadata comes from the same source,
> but still not for repeats that span listings data sources. In order to
> achieve that I believe (but do correct me if I'm wrong) that I need to
> continue erasing the programids.

No, it means the program ID is used for dup matching when both programs 
contain program IDs from the same authority and the rule-specified 
duplicate-matching method is used otherwise.

> It would have caught the specific example I gave though, since it seems
> that the three showings of Escape from Alcatraz were (in one case will
> be) broadcast by the very same channel.

Yeah, if nothing else, it should simplify the dup matching--ruling out 
dups from channels using the same program ID authority as the one from 
which you recorded it, at least.

Mike