Tags or Fields when there are many duplicated "tags" and "fields:

There are many data being imported to influx DB. There are many common tags and different measurements (fields).

The original schema was to assign all the common “tags/fields” to Tags and others as multiple fields in SINGLE line. The issue is that it is difficult to compose query on fields because they are not indexed. The opposite approach is that all tags/fields are TAGed except the measurement. The issue is the large amount of data created.

Any suggestions on the pro/cons?