Allow reading dictionary encoded boolean #3370
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I've observed some Parquet files in the wild that contain dictionary encoded boolean values, which is also wild. I don't think we want allow producing this, but I think it would be good to allow reading this. We don't judge.
wgtmac
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Dec 18, 2025
...-column/src/main/java/org/apache/parquet/column/values/dictionary/PlainValuesDictionary.java
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wgtmac
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Dec 18, 2025
parquet-column/src/test/java/org/apache/parquet/column/values/dictionary/TestDictionary.java
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wgtmac
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Dec 19, 2025
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Thanks @wgtmac |
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Rationale for this change
I've observed some Parquet files in the wild that contain dictionary-encoded boolean values, which is also wild.
I don't think we want to allow producing this, but I think it would be good to allow reading this. We don't judge.
What changes are included in this PR?
Are these changes tested?
Are there any user-facing changes?