kfaraz opened a new pull request #11889:
URL: https://github.com/apache/druid/pull/11889
### Description
This PR has changes to ensure backward compatibility of multi dimension
partitioning
such that if some middle managers are upgraded to a newer version, the
cluster still
functions normally for single_dim use cases.
### Changes
- Make `BuildingSingleDimensionShardSpec` extend
`BuildingDimensionRangeShardSpec`
- Convert `DimensionRangeBucketShardSpec` to `BuildingSingleDim` or
`BuildingDimRange`
as applicable
- Serialize/deserialize `PartitionBoundaries` as an array of Strings instead
of an array of `StringTuples`
for single dimension use cases (i.e. when each boundary is either null or
is a tuple of size 1)
<hr>
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- [ ] using the [concurrency
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- [ ] added integration tests.
- [ ] been tested in a test Druid cluster.
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