hi Mikhail Thank you for your response.
Yes, I've read the documentation (provided in your link) before I posted the message here but somehow I understood that there are two ways to search on composite key: 1. Scan Queries - does the job but doesn't look efficient enough such as it we have to iterate through all keys to match some condition on that composed key 2. SQL Queries (https://apacheignite-sql.readme.io/docs/java-sql-api) - does the job but example here contains only search on value object. And if I need to search through keys I need to put a reference to a key for there value objects (this is what I want to avoid for now). Something like it was described here - http://apache-ignite-users.70518.x6.nabble.com/Composite-key-as-Ignite-key-and-its-should-be-queryable-td24313.html. So I thought if there is an option in Apache Ignite where I can run on a cache some predicate for its composite keys, which on their own could be indexed on some property to gain a performance against linear iteration through all of them. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
