apache / apache/parquet-java

Emit and Read min/max statistics for int96 timestamp columns

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#3,242 3 comments 0 reactions 0 assignees View on GitHub
Type: enhancement
Dominant language
Java
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Description

### Describe the enhancement requested

Parquet-java does not emit or read stats for int96 timestamp columns. Since int96 is used as the default timestamp in spark, this limits a lot of optimization opportunities. Engines like [Photon](https://www.databricks.com/product/photon) populate the statistics for the int96 timestamps correctly. So parquet-java coud also emit the statistics, and also allow reading these statistics from known good writers.

### Component(s)

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