Kyle Kavanagh created ARROW-13851: ------------------------------------- Summary: Automatically cast dictionary indices during merge Key: ARROW-13851 URL: https://issues.apache.org/jira/browse/ARROW-13851 Project: Apache Arrow Issue Type: New Feature Components: C++, Python Affects Versions: 5.0.0 Reporter: Kyle Kavanagh
Following ARROW-11673, It seems users still need to manually up-cast index types when trying to concatenate tables. Would be great if this could be handled automatically {code:java} pyarrow.lib.ArrowInvalid: Unable to merge: Field X has incompatible types: dictionary<values=string, indices=int32, ordered=0> vs dictionary<values=string, indices=int16, ordered=0> {code} -- This message was sent by Atlassian Jira (v8.3.4#803005)