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Wes McKinney edited comment on ARROW-1636 at 2/6/19 6:03 AM: ------------------------------------------------------------- We observe (un-schema'd) data that is all nulls, so in such cases we refuse to guess about the type. It might be a good idea for Gandiva to support null at some point (which can cast to anything) was (Author: wesmckinn): We observe data that is all nulls, so in such cases we refuse to guess about the type. It might be a good idea for Gandiva to support null at some point (which can cast to anything) > Integration tests for null type > ------------------------------- > > Key: ARROW-1636 > URL: https://issues.apache.org/jira/browse/ARROW-1636 > Project: Apache Arrow > Issue Type: New Feature > Components: C++, Java > Reporter: Wes McKinney > Assignee: Pindikura Ravindra > Priority: Major > Labels: columnar-format-1.0 > Fix For: 0.14.0 > > > This was not implemented on the C++ side, and came up in ARROW-1584. > Realistically arrays may be of null type, and we should be able to message > these correctly -- This message was sent by Atlassian JIRA (v7.6.3#76005)