feat(ipc): add with_skip_validation to StreamDecoder #9749
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alamb merged 1 commit intoapache:mainfrom Apr 23, 2026
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Thanks @pantShrey -- makes sense to me
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Which issue does this PR close?
N/A - this is a small API parity fix.
Rationale for this change
StreamReaderandFileDecoderboth exposewith_skip_validationbutStreamDecoderdoes not, despite having the same internalskip_validationfield.Motivation: DataFusion's spill infrastructure is being refactored to use
StreamDecoderfor reading spill files via a pluggable backend trait (apache/datafusion#21215). Since DataFusion controls what it writes it can trust its own IPC output, and needs this method to maintain the same performance characteristic as the current StreamReader-based implementationWhat changes are included in this PR?
Adds
with_skip_validationtoStreamDecodermirroring the existing implementation onFileDecoderAre these changes tested?
The existing StreamDecoder tests cover the decoding path. No new tests added as this method sets an internal flag already tested via
FileDecoderandStreamReader.Are there any user-facing changes?
Yes,
with_skip_validationis now available onStreamDecoder. It is marked unsafe with the same safety requirements asFileDecoder::with_skip_validation.