Your image did not come through. Please paste the stack trace as text. Julian
On Tue, Oct 27, 2020 at 12:02 PM Prabhat Singh <[email protected]> wrote: > > Hi, > > I have a requirement to query the multiple data sources in a single SQL > query. I saw Calcite provides this with a JDBC adapter. While running this, I > encountered the following challenges: > > Execution was happening in memory which causes OOM on big data. > > I saw there is an option for Spark. If this option is enabled, will the query > be executed using Spark? > > If the answer to the 2nd question is yes, when I am trying to execute the > query using the Spark option, I am getting the following exception: > > When I debug this it seems like the slim data context is null because of that > it throws null pointer exception. > > Please let me know the response.thanks in advance. > > > Best Regards > Prabhat Singh > +919028246725
