Implement len(GroupBy) and ngroups for DataFrame API
Open
core
dataframe
P3
python
sub-task
- Dominant language
- Java
- Stars
- 8.7k
- Forks
- 4.7k
- Avg merge
- 1d 20h
- Merged PRs (30d)
- 196
Description
Imported from Jira [BEAM-13968](https://issues.apache.org/jira/browse/BEAM-13968). Original Jira may contain additional context.
Reported by: yeandy.
Subtask of issue #20958
Contributor guide
Research direction
Start by reading parent issue #20958 and the imported Jira issue BEAM-13968, which may contain the missing context. The payload names no files or tests; done means implementing len(GroupBy) and ngroups for the DataFrame API and verifying the relevant behavior with the project's tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- data-engineering
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100