friendlymatthew opened a new pull request, #21180: URL: https://github.com/apache/datafusion/pull/21180
## Rationale for this change This PR adds benchmarks that measure the perf of projecting individual fields from struct columns in Parquet files. #20925 introduced leaf-level projection masking so that `select s['small_int']` on a struct with large string fields only reads the small integer leaf, skipping the expensive string decoding entirely 3 dataset shapes are coevered, each with ~262K rows of 8kb string payloads: a narrow struct (2 leaves), a wide struct (5 leaves), and a nested struct. Each shape benchmarks full-struct reads against single-field projections -- 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]
