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Cleanup fix_read_sql_parallelism #1

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merged 5 commits into from
Jan 24, 2025

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richardliaw
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Why are these changes needed?

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  • I've signed off every commit(by using the -s flag, i.e., git commit -s) in this PR.
  • I've run scripts/format.sh to lint the changes in this PR.
  • I've included any doc changes needed for https://docs.ray.io/en/master/.
    • I've added any new APIs to the API Reference. For example, if I added a
      method in Tune, I've added it in doc/source/tune/api/ under the
      corresponding .rst file.
  • I've made sure the tests are passing. Note that there might be a few flaky tests, see the recent failures at https://flakey-tests.ray.io/
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    • This PR is not tested :(

Signed-off-by: Richard Liaw <[email protected]>
Signed-off-by: Richard Liaw <[email protected]>
Signed-off-by: Richard Liaw <[email protected]>
Signed-off-by: Richard Liaw <[email protected]>
Signed-off-by: Richard Liaw <[email protected]>
@@ -137,25 +135,28 @@ def fallback_read_fn() -> Iterable[Block]:
num_rows_per_block = num_rows_total // parallelism
num_blocks_with_extra_row = num_rows_total % parallelism

sample_block_accessor = BlockAccessor.for_block(self._get_sample_block())
estimated_size_bytes_per_row = math.ceil(
sample_block_accessor.size_bytes() / sample_block_accessor.num_rows()
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Is the schema here useless? Why is it removed?

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It's not that useful / it will be inferred once execution happens

@Jay-ju Jay-ju merged commit e840203 into Jay-ju:fix_read_sql_parallelism Jan 24, 2025
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2 participants