abhishekagarwal87 opened a new pull request, #16259:
URL: https://github.com/apache/druid/pull/16259
This adds support for reading partial data from parquet files on S3 or GCS.
The exact mechanics of doing so are left to the parquet library. The PR just
enables everything to be wired so the parquet extension can invoke necessary
operations on classes sitting in other extensions. The feature is behind a flag
because sometimes it might be faster to download first than make multiple HTTP
calls to remote storage to read partial data.
This PR has:
- [ ] been self-reviewed.
- [ ] using the [concurrency
checklist](https://github.com/apache/druid/blob/master/dev/code-review/concurrency.md)
(Remove this item if the PR doesn't have any relation to concurrency.)
- [ ] added documentation for new or modified features or behaviors.
- [ ] a release note entry in the PR description.
- [ ] added Javadocs for most classes and all non-trivial methods. Linked
related entities via Javadoc links.
- [ ] added or updated version, license, or notice information in
[licenses.yaml](https://github.com/apache/druid/blob/master/dev/license.md)
- [ ] added comments explaining the "why" and the intent of the code
wherever would not be obvious for an unfamiliar reader.
- [ ] added unit tests or modified existing tests to cover new code paths,
ensuring the threshold for [code
coverage](https://github.com/apache/druid/blob/master/dev/code-review/code-coverage.md)
is met.
- [ ] added integration tests.
- [ ] been tested in a test Druid cluster.
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