Forum Discussion
Solved
Conversion from number to string failed due to undersized character buffer
Starting yesterday afternoon, several of our datasets have failed to refresh with the below error. What is the reason for this error? Our datasets imports data from Databricks Spark Delta tables usin...
Thanks Anonymous! Now, it's working. Microsoft has now posted an awareness message to their support page about this:
I just experienced this issue. Thanks for the discussion and possible workarounds as well as the message from the Microsoft support page:
"Power BI customers using Databricks as a Datasource may encounter the following message during refresh: "Conversion from number to string failed due to undersized character buffer". Engineers have identified the root cause as an incompatibility between Databricks version 6.4 (and above) and connector used by Power BI service. Customers can avoid this issue by using a Databricks version lower than 6.4 until the fix is deployed. ETA for a fix will be provided soon. "