Show at least one more column in beta view

[pascalchevrel]

• https://missioncontrol.telemetry.mozilla.org/#/beta/linux has no beta 4 column
• https://missioncontrol.telemetry.mozilla.org/#/beta/mac has a beta 4 column with no values
• https://missioncontrol.telemetry.mozilla.org/#/beta/windows only has one line with values for beta 4

Is that a known issue?

[wlach]

We only show data for the last 3 specific releases in mission control currently:

https://github.com/mozilla/missioncontrol/blob/c67a03078c02a2eb481438c99922c4d9b2103436/missioncontrol/etl/measuresummary.py#L159

If you think it would be useful to have more data, feel free to morph this issue to request that. I suspect @mozillamarcia may be interested in adding this use-case to her spreadsheet of relman mission control asks as well.

[pascalchevrel]

I think it would be useful yes, we always have a release in flight and not shipped yet. So that means for example that on Monday/Tuesday this week the beta 7 column is a column of zeros and beta 4 is a column of N/A so actually we only see data for 2 releases, beta 5 and 6.