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Antoine Pitrou / @pitrou:
That changeset is ARROW-10353, which fixes bugs both in the read and write path for V2 data pages. On the write side, Parquet C++ used not to always set is_compressed = false in the data page, regardless of compression. On the read side, Parquet C++ used to always decompress, regardless of the is_compressed flag.
As described in https://lists.apache.org/thread/xkrhgfpk9sr1mj74d4chz3r5yp3szt6c,
ef0feb2
Caused some files written prior to 3.0.0 to be unreadable. Given that the patch was small, this will hopefully not be too difficult to fix
Reporter: Will Jones / @wjones127
Assignee: Will Jones / @wjones127
Related issues:
PRs and other links:
Note: This issue was originally created as ARROW-17100. Please see the migration documentation for further details.
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