zhengruifeng opened a new pull request, #58170: URL: https://github.com/apache/spark/pull/58170
### What changes were proposed in this pull request? This PR changes the temporary per-row count map used by `CountVectorizerModel.transform` from `OpenHashMap[Int, Double]` to `OpenHashMap[Int, Int]`. The transform path only increments word counts by one while scanning the input document. The counts are converted to `Double` when constructing the output sparse vector. ### Why are the changes needed? Using integer values in the temporary map reduces memory used while counting words for each input document. The output vector still uses `Double` values, so the external behavior is unchanged. ### Does this PR introduce _any_ user-facing change? No. ### How was this patch tested? Not run; change is covered by existing `CountVectorizerSuite` transform coverage. ### Was this patch authored or co-authored using generative AI tooling? Generated-by: Codex (GPT-5) -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
