Anton-Tarazi opened a new pull request, #2674:
URL: https://github.com/apache/iceberg-python/pull/2674
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Resolves #2673
# Rationale for this change
`_SnapshotProducer._summary()` copies the metadata for _every_ added /
deleted DataFile. This is pretty expensive. Instead we just copy it once at the
beginning of the function and use the same value each DataFile.
On my data, which overwrites a few million rows at a time, I saw the time
for `table.overwrite` go from ~20 seconds to ~6 seconds.
## Are these changes tested?
Yes, existing unit / integration tests
## Are there any user-facing changes?
Just faster writes :)
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