Hi, I think you can try to investigate the articles from the next wiki:
https://cwiki.apache.org/confluence/display/IGNITE/Design+Documents Next blog contains the interesting information (possible some will be out of date): http://gridgain.blogspot.com It contains a lot of information about how Ignite works under the hood. According to indexes and h2. Ignite used the h2 for query parsing, execution planning, and indexing but looks like there is no detailed documentation about it. Only official information: https://apacheignite-sql.readme.io/docs/how-ignite-sql-works BR, Andrei -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/