Influxdb: [feature request] Ability to drop tags for a database

[robinjha]

We have a requirement where we would need to update/delete tags for a database. Could you please provide us with an ability to do that?

This would prevent drop-down menus to be populated with older tags which no longer has data associated with it.

[beckettsean]

DROP SERIES will do what you describe. For example:

DROP SERIES FROM my_measurement WHERE mytag = 'valid_tag_value'

The equality in the WHERE clause will not accept a regular expression, so you will need to explicitly drop the series for each tag key-value pair, rather than being able to drop all series for a given tag key with a single query.

[robinjha]

Thanks Sean! I will give this a try.

[andyxning]

@beckettsean Will Influxdb delete empty value tags automatically when its time is beyond the retention policy?

Because the tag value is empty, can we just write mytag=''?

Info:
version of Influxdb: 0.13