Matt McCline created HIVE-19116: ----------------------------------- Summary: Vectorization: Vector Map data type doesn't keep the order of the key/values pairs as read Key: HIVE-19116 URL: https://issues.apache.org/jira/browse/HIVE-19116 Project: Hive Issue Type: Bug Components: Hive Affects Versions: 3.0.0 Reporter: Matt McCline Assignee: Matt McCline
The VectorExtractRow class does not preserve the order of the key/value pairs when going from MapColumnVector to a Map object. This causes Q file differences in tests with the MAP data type making it seem like we are getting Wrong Results (well, actually we are). When LazyMap class (for example) adds key/value pairs to its "map" it uses a LinkedHashSet to preserve insert order. FYI: [~teddy.choi] -- This message was sent by Atlassian JIRA (v7.6.3#76005)