Zhenzhong Xu created FLINK-33765: ------------------------------------ Summary: Flink SQL to support COLLECTLIST Key: FLINK-33765 URL: https://issues.apache.org/jira/browse/FLINK-33765 Project: Flink Issue Type: Improvement Components: API / DataSet Reporter: Zhenzhong Xu
Flink SQL currently supports COLLECT, which returns a multiset, however, given support for casting from multiset to other types (especially array/list) is *very* limited, see [here,|https://github.com/apache/flink/blob/master/docs/content/docs/dev/table/types.md#casting] this is creating lots of headaches for ease of use. Can we support COLLECT_LIST as a built-in system function? -- This message was sent by Atlassian Jira (v8.20.10#820010)