xuanyuanking opened a new pull request #27316: [SPARK-26509][SQL] Support DELTA_BYTE_ARRAY encoding for Parquet vectorized reader URL: https://github.com/apache/spark/pull/27316 ### What changes were proposed in this pull request? Implement Parquet delta encoding for the vectorized interface, which is needed for V2 pages. The implementation simply delegates the decoding to the Parquet implementation. #### Reference: [Parquet encodings](https://github.com/apache/parquet-format/blob/ee02ef8c8f33bd3d5ed0582ded7e20439e12d933/Encodings.md) [DefaultV2ValuesWriterFactory](https://github.com/apache/parquet-mr/blob/30aa91012cf6019bb9720609c1d03b5386a87ffb/parquet-column/src/main/java/org/apache/parquet/column/values/factory/DefaultV2ValuesWriterFactory.java) ### Why are the changes needed? Support for parquet DataPageV2. ### Does this PR introduce any user-facing change? ### How was this patch tested? New UT. Credit to @nandorKollar, Closes #23988.
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