Taras Ledkov created IGNITE-9480: ------------------------------------ Summary: SQL: Introduce H2 LocalResult factory Key: IGNITE-9480 URL: https://issues.apache.org/jira/browse/IGNITE-9480 Project: Ignite Issue Type: Improvement Components: sql Affects Versions: 2.6 Reporter: Taras Ledkov Assignee: Taras Ledkov Fix For: 2.7
H2 collects query result at the instance of `LocalResult` for queries results that not be gathered lazy. This causes an OOME error on large result sets. We have to introduce way to use our own implementation of the query result's container. Suggestion fix: - H2 simple refactoring: make `LocalResult` interface and H2 default implementation `LocalResultImpl` - Add H2 configurable `LocalResultFactory` to setup custom implementation of the `LocalResult. - Create Ignite implementation of `LocalResultFactory` & `LocalResult` to track allocated memory, swap results to external storage etc. H2 issue: [#1405|https://github.com/h2database/h2database/issues/1405#issuecomment-417631253] -- This message was sent by Atlassian JIRA (v7.6.3#76005)