The diagnostic dataSource*.log, collected as described here (in step 2, run Refresh for the whole data source and make sure to wait for it to finish - the spinning icon near the data source name should disappear).
The idea.log file (located via Help | Show Log in …).
In the meantime, please also try switching to the JDBC-based introspector, as described here.
Hi,
Please upload the following logs to https://uploads.jetbrains.com/ and share the upload ID once done:
In the meantime, please also try switching to the JDBC-based introspector, as described here.