Hi, What query are you executing? This should happen only if you do 'select *', because this includes special pre-defined _key and _val fields that represent whole key and value objects. If you specify the list of fields, you should not get the exception.
-Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Ignite-zeppelin-jdbc-connection-tp7898p7980.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.