[FEA] Java: Table.mixedInnerJoinGatherMaps variant accepting a pre-built HashJoin
Open
feature request
Java
- Dominant language
- C++
- Stars
- 9.8k
- Forks
- 1.1k
- Avg merge
- 3d 6m
- Merged PRs (30d)
- 278
Description
**Is your feature request related to a problem? Please describe.**
`Table.innerJoinGatherMaps(HashJoin)` lets a caller build the right-side hash table once and probe many times. `Table.mixedInnerJoinGatherMaps` does not accept a pre-built hash table and builds it on every call. This wastes time and memory.
**Describe the solution you'd like**
`Table.mixedInnerJoinGatherMaps` and `Table.mixedLeftJoinGatherMaps` overloads that take `HashJoin`
**Describe alternatives you've considered**
None yet. Any recommendations?
**Additional context**
- https://github.com/rapidsai/cudf/issues/22124
Contributor guide
Assessment
This issue has not been assessed yet.