lostluck commented on a change in pull request #11883: URL: https://github.com/apache/beam/pull/11883#discussion_r435397313
########## File path: learning/katas/go/Core Transforms/Combine/CombineFn/pkg/task/task.go ########## @@ -47,9 +47,9 @@ func (c *averageFn) MergeAccumulators(accumA, accumB averageAccum) averageAccum } } -func (c *averageFn) ExtractOutput(accum averageAccum) float64 { +func (c *averageFn) ExtractOutput(accum averageAccum) int { Review comment: Henry's right. `float64(accum.Sum / accum.Count)` will have integer division fraction truncation errors, while `float64(accum.Sum) / float64(accum.Count)` will not. Go is very specific about requiring explicit conversions between numeric types to avoid this kind of error accidentally. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org