[IGNITE-16697] [Versioned Storage] POC - add methods for versioned data storage

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha5
• Labels: ignite-3
• Epic Link: MV Store
• Assignee: Ivan Bessonov
• Reporter: Ivan Bessonov
• Reviewer: Aleksandr Polovtsev
• Created: 16/Mar/22 14:41
• Updated: 04/May/22 14:32
• Resolved: 05/Apr/22 12:33

Description

As a first step towards MV-storage in Ignite 3.0 it's required to have specific methods on the partition storage and index storage interfaces. These will replace currently available VersionedRowStore, which was a prototype in itself and doesn't correspond to a desired functionality.

Partition storage needs:

• addWrite(k, v, txId)
• commitWrite(k, ts)
• abortWrite(k)
• read(k, ts)
• scan(ts, tbd)
• cleanup(tbd)

Sorted index storage needs:

• scan(lower, upper, bounds_options, projection, partition_filter, ts)

Index updates will be hidden inside of addWrite, abortWrite and cleanup methods. No external "update" and "remove" are required.

This particular issue is a precursor for the https://issues.apache.org/jira/browse/IGNITE-16611.

Reference implementation is also required, it'll provide an example of what's expected from the storage and a set of tests to fix methods contracts.

Issue Links

• Blocked: IGNITE-16881 Integrate MV-storage into current tx implementation
• links to: GitHub Pull Request #739