Henry Robinson 8c5b34c425 [SPARK-23604][SQL] Change Statistics.isEmpty to !Statistics.hasNonNul… ... …lValue ## What changes were proposed in this pull request? Parquet 1.9 will change the semantics of Statistics.isEmpty slightly to reflect if the null value count has been set. That breaks a timestamp interoperability test that cares only about whether there are column values present in the statistics of a written file for an INT96 column. Fix by using Statistics.hasNonNullValue instead. ## How was this patch tested? Unit tests continue to pass against Parquet 1.8, and also pass against a Parquet build including PARQUET-1217. Author: Henry Robinson <henry@cloudera.com> Closes #20740 from henryr/spark-23604.		2018-03-05 16:49:24 -08:00
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main	[SPARK-23559][SS] Add epoch ID to DataWriterFactory.	2018-03-05 13:23:01 -08:00
test	[SPARK-23604][SQL] Change Statistics.isEmpty to !Statistics.hasNonNul…	2018-03-05 16:49:24 -08:00