mqliang opened a new pull request #6710: URL: https://github.com/apache/incubator-pinot/pull/6710
## Description This PR: * Add a positional data section to the tail of data table, bump up data table version to V3 * Data in the positional data section is supposed to be key/value pairs, and data are supposed to be positional(value of a given key is locatable even after serialization), so use `String[]` to store keys and use `enum` to store keys. * Currently we only have one KV pair (response_serialization_cost) in positional data section. But if we add more KV pairs, we can add some utility function such as `getOffsetForValueOfGivenKey()` to locate the value of given key. * measure data table serialization cost on server and put the cost in the positional data section. ## Upgrade Notes Does this PR prevent a zero down-time upgrade? (Assume upgrade order: Controller, Broker, Server, Minion) * [ ] Yes (Please label as **<code>backward-incompat</code>**, and complete the section below on Release Notes) Does this PR fix a zero-downtime upgrade introduced earlier? * [ ] Yes (Please label this as **<code>backward-incompat</code>**, and complete the section below on Release Notes) Does this PR otherwise need attention when creating release notes? Things to consider: - New configuration options - Deprecation of configurations - Signature changes to public methods/interfaces - New plugins added or old plugins removed * [ ] Yes (Please label this PR as **<code>release-notes</code>** and complete the section on Release Notes) ## Release Notes If you have tagged this as either backward-incompat or release-notes, you MUST add text here that you would like to see appear in release notes of the next release. If you have a series of commits adding or enabling a feature, then add this section only in final commit that marks the feature completed. Refer to earlier release notes to see examples of text ## Documentation If you have introduced a new feature or configuration, please add it to the documentation as well. See https://docs.pinot.apache.org/developers/developers-and-contributors/update-document -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For additional commands, e-mail: commits-h...@pinot.apache.org
