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ARROW-18012: [R] Make map_batches .lazy = TRUE by default - #14521
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ursabot
commented
Oct 30, 2022
Benchmark runs are scheduled for baseline = 286c263 and contender = 9707630. 9707630 is a master commit associated with this PR. Results will be available as each benchmark for each run completes. |
This makes the default
map_batches()behaviour lazy (i.e., the function is called once per batch as each batch arrives):Created on 2022-10-26 with reprex v2.0.2
This was previously a confusing default since piping the resulting
RecordBatchReaderinto anExecPlanwould fail for some ExecPlans before ARROW-17178 (#13706). This PR commits to the (more optimal/expected) lazy behaviour.