failed to add oracle view as superset table.

[modastyle]

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• I have checked the superset logs for python stacktraces and included it here as text if 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

Superset version

2.0.3

Expected results

Failed to add oracle view as superset table, while it works normal at the vresion of 1.9.1.

Actual results

Steps to reproduce

Open the tablemodelview list page, click add table button, then go to the add table page, try to add an oracle view, it will fail.

[xrmx]

Check the superset logs and include any stacktrace please.

[hidetoshiito]

Hi

I also have the same problem.

I worked after fixing it like this.
It is workaround.
I do not understand the implementation of it, so I can not fix it.

/superset/connectors/sqla/views.py
L.237

         # Fail before adding if the table can't be found
-        if not table.database.has_table(table):  
+       try:
+           table.get_sqla_table_object()         
+       except Exception as e:
             raise Exception(_( 

Superset version

0.20.5

Actual results

An error message
Table [OracleScheme.ViewName] could not be found please double check your database connection, schema, and table name

[stale]

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