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Julian Hyde commented on HIVE-12839: ------------------------------------ [~pxiong], I was pretty sure I didn't add anything breaking after you validated the 1.6 RC, but it looks as if I screwed up. Sorry about that. I think you can add a HiveValuesFactory to the context used to create a RelBuilder, make it do something different for 0 rows (e.g. create a Sort(limit 0) or a null scan) and that will solve the problem without needing any changes to Calcite. As an aside, if you could change Calcite, what would you want {{RelBuilder.empty}} to do? I presume it is useful to convert {{LIMIT 0}} and {{WHERE FALSE}} to an empty relation, so how would you propose to represent it in Hive? > Upgrade Hive to Calcite 1.6 > --------------------------- > > Key: HIVE-12839 > URL: https://issues.apache.org/jira/browse/HIVE-12839 > Project: Hive > Issue Type: Improvement > Reporter: Pengcheng Xiong > Assignee: Pengcheng Xiong > Attachments: HIVE-12839.01.patch, HIVE-12839.02.patch, > HIVE-12839.03.patch > > > CLEAR LIBRARY CACHE > Upgrade Hive to Calcite 1.6.0-incubating. -- This message was sent by Atlassian JIRA (v6.3.4#6332)