tachyonwill commented on a change in pull request #12630:
URL: https://github.com/apache/arrow/pull/12630#discussion_r827248653
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File path: python/pyarrow/parquet.py
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@@ -605,6 +605,9 @@ def _sanitize_table(table, new_schema, flavor):
If None, no encryption will be done.
The encryption properties can be created using:
``CryptoFactory.file_encryption_properties()``.
+write_batch_size : int, default None
+ Number of values to write to a page at a time. If None, use the default of
+ 1024.
Review comment:
The default is 1024:
https://github.com/apache/arrow/blob/3bf061783f4e1ab447d2eb0f487c0c4fce6d5b15/cpp/src/parquet/properties.h#L96
The way `data_page_size` and `write_batch_size` work is `write_batch_size`
values are written, then the size of the page is checked against
`data_page_size` and if `data_page_size` is exceeded, we start a new page.
Normally, 1024 is fine for the `write_batch_size` but if the values are really
big(big strings) or `data_page_size` really small, then a smaller
`write_batch_size` is needed to keep the page sizes close to `data_page_size` .
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