Hello! Sorry for the late reply! I think the good description of this flag is found in JDBC driver's documentation.
https://apacheignite-sql.readme.io/docs/jdbc-driver#section-parameters lazy Lazy query execution. By default, Ignite attempts to fetch the whole query result set to memory and send it to the client. For small and medium result sets, this provides optimal performance and minimize duration of internal database locks, thus increasing concurrency. However, if the result set is too big to fit in the available memory, then it can lead to excessive GC pauses and even OutOfMemoryError. Use this flag as a hint for Ignite to fetch the result set lazily, thus minimizing memory consumption at the cost of moderate performance hit. More on the concept of lazy evaluation: https://en.wikipedia.org/wiki/Lazy_evaluation Regards, -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
