[ https://issues.apache.org/jira/browse/SPARK-42716?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-42716: ------------------------------------ Assignee: (was: Apache Spark) > 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: 3.3.0, 3.3.1, 3.3.2, 3.4.0, 3.4.1 > Reporter: Enrico Minack > Priority: Major > > 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