User Problem

When the underlying query of a chart encounters a data source error (ie. a timeout error), add an option to display the data from the last successful query that was sent to the data source. Currently, when the most recent query is sent to a datasource and encounters an error, an error message is displayed by the chart; it would be more valuable to have the cached data from the last successful query displayed.  

Suggested Solutions

Allow for users to have the option to not cache queries that return a data source error, and instead display the data returned by the last successfully run query in the chart. 

Current Workarounds

When a chart returns a data source error, the individual chart either needs to be manually refreshed, or re-run via the visual SQL query builder. If the chart continues to return a data source error, there is no way to go back to display the data from the last successful query. In this case, there is no current workaround to this functionality.