Enrico Minack created SPARK-42716: ------------------------------------- Summary: DataSourceV2 cannot report KeyGroupedPartitioning with multiple keys per partition Key: SPARK-42716 URL: https://issues.apache.org/jira/browse/SPARK-42716 Project: Spark Issue Type: Bug Components: SQL Affects Versions: 3.3.2, 3.3.1, 3.3.0, 3.4.0, 3.4.1 Reporter: Enrico Minack
>From Spark 3.0.0 until 3.2.3, a DataSourceV2 could report its partitioning as >{{KeyGroupedPartitioning}} via {{SupportsReportPartitioning}}, even if >multiple keys belong to a partition. With SPARK-37377, only if all partitions implement {{HasPartitionKey}}, the partition information reported through {{SupportsReportPartitioning}} is considered by catalyst. But this limits the number of keys per partition to 1. Spark should continue to support the more general situation of {{KeyGroupedPartitioning}} with multiple keys per partition, like {{HashPartitioning}}. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org