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[C++][Parquet] Parquet treats unknown compression codec as uncompressed #53518
Description
Describe the bug, including details regarding any error messages, version, and platform.
The parquet thrift decoding maps an out of range codec value as uncompressed, we should handle it as undefined, so we can fail early instead of allowing encodings to possibly read garbage data.
Component(s)
Parquet
Activity
[-]Parquet treats unknown compression codec as uncompressed[/-][+][Parquet] Parquet treats unknown compression codec as uncompressed[/+][-][Parquet] Parquet treats unknown compression codec as uncompressed[/-][+][C++][Parquet] Parquet treats unknown compression codec as uncompressed[/+]GH-53518: [Parquet] Reject unsupported compression codecs (#53522)
pitrou commentedon Oct 13, 2026
Issue resolved by pull request 53522
#53522
pitrou commentedon Oct 13, 2026
@divjotarora Can you post here so that we assign the issue to you?
divjotarora commentedon Oct 16, 2026
@pitrou Sorry, missed your comment. I thought it was already assigned to me per the bot comment on the PR
pitrou commentedon Oct 19, 2026
Interesting. Apparently it wasn't :)