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Posted to issues@ignite.apache.org by "Ivan Bessonov (Jira)" <ji...@apache.org> on 2022/08/24 07:09:00 UTC
[jira] [Updated] (IGNITE-17338) Implement RocksDB based hash index storage
[ https://issues.apache.org/jira/browse/IGNITE-17338?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ivan Bessonov updated IGNITE-17338:
-----------------------------------
Ignite Flags: (was: Docs Required,Release Notes Required)
> Implement RocksDB based hash index storage
> ------------------------------------------
>
> Key: IGNITE-17338
> URL: https://issues.apache.org/jira/browse/IGNITE-17338
> Project: Ignite
> Issue Type: Improvement
> Reporter: Ivan Bessonov
> Assignee: Aleksandr Polovtcev
> Priority: Major
> Labels: ignite-3
> Fix For: 3.0.0-alpha6
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Please see IGNITE-17318 for partial description of what needs to be achieved.
> I expect that hash index records will have the following structure:
> {code:java}
> [ indexId | partitionId | hash | tuple | rowId ] -> []{code}
> Fixed-length prefix should cover indexId, partitionId and hash value.
> Searching rows effectively becomes a scan, but this is fine.
> Hashing must be performed internally, hash function already presents somewhere in the code.
> Is far as I understand, PK is going to be implemented as a secondary hash index.
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