rodrigomsrocha commented on issue #30208:
URL: https://github.com/apache/superset/issues/30208#issuecomment-3089633073

   Hi! I’d like to share some additional context regarding this issue.
   
   I’m connecting Apache Superset to a Kyuubi server, which exposes a Spark SQL 
environment via the Spark Thrift Server protocol. I’m using the following 
connection string (with LDAP authentication):
   ```bash
   hive://user:password@host:port/spark_catalog?auth=LDAP
   ```
   While I can successfully run SQL queries against my tables (both in SQL Lab 
and by manually creating datasets), Superset is not able to automatically list 
tables and columns in the database/schema browser. This means I cannot see or 
select tables/columns from the UI to easily create datasets—I’m only able to 
create them by writing SQL queries manually.
   
   Additional context:
   - The same user/connection works perfectly in other BI tools (like Power 
BI), which are able to list tables and columns without issue, so it doesn’t 
appear to be a permissions problem.
   - The Spark/Kyuubi backend supports SHOW TABLES, SHOW DATABASES, and column 
metadata queries via the Thrift interface.
   - This seems to be a limitation or incompatibility between Superset’s 
database engine/driver and Kyuubi/Spark Thrift Server.
   - The problem occurs both with and without the spark_catalog parameter in 
the URI.
   
   If you need any specific logs or connection details, I’m happy to provide 
them!
   
   


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