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Posted to issues@iceberg.apache.org by GitBox <gi...@apache.org> on 2019/03/15 14:57:23 UTC
[GitHub] [incubator-iceberg] aokolnychyi opened a new pull request #131: Fix
collection of bounds for small decimals in ParquetMetrics
aokolnychyi opened a new pull request #131: Fix collection of bounds for small decimals in ParquetMetrics
URL: https://github.com/apache/incubator-iceberg/pull/131
This PR resolves #125.
`ParquetMetrics` uses `ParquetConversions$fromParquetPrimitive`, which assumes that decimals are always represented as binary in Parquet. The last statement is not true according to[ the Parquet spec](https://github.com/apache/parquet-format/blob/master/LogicalTypes.md).
As a consequence, Iceberg might collect invalid lower/upper bounds that can lead to skipping wrong files. See the issue description for an example.
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