Rework API RowVectors.partitionBySpec to support all PartitionFunctionSpec types

[zhztheplayer]

Maps Velox's PartitionFunction facility to Velox4J Java API to support all PartitionFunctionSpec types in RowVectors.partitionBySpec calls, and to provide a PartitionFunction API in Java for more flexible partitioning invocations.

Breaking change:

• class PartitionFunctionSpec is being moved from org.boostscale.velox4j.plan.partition to org.boostscale.velox4j.partition

[zhztheplayer]

@LantaoJin I am working on generalizing the fundamentals of RowVectors.partitionBySpec through this PR. There's a breaking API change about moving the package:

class PartitionFunctionSpec is being moved from org.boostscale.velox4j.plan.partition to org.boostscale.velox4j.partition

[LantaoJin]

@LantaoJin I am working on generalizing the fundamentals of RowVectors.partitionBySpec through this PR. There's a breaking API change about moving the package:

class PartitionFunctionSpec is being moved from org.boostscale.velox4j.plan.partition to org.boostscale.velox4j.partition

Wonder when could the maven deployment be trigger? each merged PR or nightly?

[zhztheplayer]

@LantaoJin do you mean the Maven snapshot package? It's now manually triggered. Do you use it?

[LantaoJin]

@LantaoJin do you mean the Maven snapshot package? It's now manually triggered. Do you use it?

Sure, I use the maven SNAPSHOT jar, please trigger it for any new API added or break changes.

[zhztheplayer]

@LantaoJin released. The full deployment history is at https://github.com/boostscale/velox4j/actions/workflows/pub-snapshot.yml.