Can I use MySQL JSON in Superset?

[Erimus-Koo]

I'm new here and often use MongoDB, but I am less familiar with SQL.

Currently, I have a key "tag" with array contents in my SQL database. In fact, I have many columns similar to "tag". I've tried using JSON in MySQL, but I don't know how it can work in Superset.

I've thought about flattening the "tag" column, but there are too many values in the array-type columns, so flattening all of them might not be a good idea. I've also considered creating another table using "tag" as the primary key and storing the user IDs, but I'm still not sure which approach would be better.

Any advice would be appreciated.

[Erimus-Koo]

And I found that Superset separated my data into several rows, e.g.
Eve has 2 tags, so changed into 2 rows.
Bob has 3 tags, so changed into 3 rows.

My table has 100 rows, but in the above screenshot, there are 196 rows.
Looks Superset has understood the tag, but what next step should I take?