Unable to add dataset

[akshay26031996]

When we try to add a dataset from the superset UI, the "Add" button is disabled.

How to reproduce the bug

1. Add pyhive in docker/requirements-local.txt
2. Run docker-compose -f docker-compose-non-dev.yml up
3. Connect to a database. I have connected with presto.
4. Click on Data -> Datasets

4. Click on + Datasets

5. Fill in all the details. Still the Add button is disabled.

Expected results

After filling in the required details we should be able to proceed with adding the datasets.

Actual results

Add button is disabled.

Environment

• browser type and version: Tested in both Firefox and Chrome
• superset version: superset version: Dev

Checklist

Make sure to follow these steps before submitting your issue - thank you!

• I have checked the superset logs for python stacktraces and included it here as text if there are any.
• I have reproduced the issue with at least the latest released version of superset.
• I have checked the issue tracker for the same issue and I haven't found one similar.

Additional context

I am able to query the table in the SQL editor.

[yousoph]

Looks like the add button is disabled when you select the first table, but if you go back and select a second table from the dropdown, the add button gets enabled (as a temporary workaround)

[jinghua-qa]

test cases added