Currently, to get the first release date of a single recording, one has to search for its release group and parse the tag <first-release-date />. This causes a terrible slowdown when searching for multiple tracks (considering the limit of one lookup per second): for example, with a list of 10 tracks, instead of taking 10 seconds (1 per track), it takes 10 + N (where N is the number of release groups associated to all the tracks). N is usually a high number.
I'm asking if <first-release-date /> can be added to the <release-group /> tag in recording lookup. It would speed up a lot the new Amarok tagger I'm working on.
MBS-1424 requests adding a release-date for a recording as a separate value to the release date of the various releases that the recording is linked to. Whereas this ticket is just asking to make the first-release-date that currently exist for a release group (derived form linked releases) to be made available when you do a search for recordings. These are different things but the existence of MBS-1424 makes me nervous of fixing this issue before a decision is made on whether/how to do MBS-1424.