Krisztian Kasa created HIVE-27690: ------------------------------------- Summary: Handle casting NULL literal to complex type Key: HIVE-27690 URL: https://issues.apache.org/jira/browse/HIVE-27690 Project: Hive Issue Type: Improvement Reporter: Krisztian Kasa Assignee: Krisztian Kasa
{{NULL}} literal values of a complex type column are treated as void typed literals. {code:java} create table explain_npe_map ( c1 map<string, string> ); explain select c1 from explain_npe_map where c1 is null; {code} [https://github.com/apache/hive/blob/88bc8269a64d31eee372bf3602933c75283c686b/ql/src/test/results/clientpositive/llap/analyze_npe.q.out#L142] The goal of this patch is to use the original complex type: {code:java} Select Operator expressions: Const map<string,string> null (type: map<string,string>) {code} Void typed {{NULL}} literals makes CTAS statements are fail since the original complex type can not be inferred. -- This message was sent by Atlassian Jira (v8.20.10#820010)