I am unable to add filter from the column in dashboard

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Hi @RohitRaina

Have a look at this guide:
https://github.com/metabase/metabase/blob/master/docs/troubleshooting-guide/filters.md

I would recommend that you upgrade to latest release (remember to backup first):
https://github.com/metabase/metabase/releases/latest

Upgrade Java:
https://www.metabase.com/docs/latest/operations-guide/java-versions.html

And migrate away from H2 if you are using Metabase in production:
https://www.metabase.com/docs/latest/operations-guide/migrating-from-h2.html

Hello @flamber I want asset class name as a field filter in my dashboard. I have created custom questions from this native query. It is coming in my native query but not in my dashboard. Can you please help me out in this?

@RohitRaina

  1. Upgrade release
  2. Upgrade java
  3. Migrate away from H2

If you want to use a Field Filter, then you cannot use table aliases, and you don't use column or operator reference, just the variable.
https://www.metabase.com/learn/sql-questions/field-filters