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ASF GitHub Bot commented on ORC-54: ----------------------------------- Github user omalley commented on the issue: https://github.com/apache/orc/pull/40 This is looking good. I rebased it to the current trunk and undid some of the spacing changes. My version is here: https://github.com/omalley/orc/tree/orc-54 I also left some comments in the pull request. > Evolve schemas based on field name rather than index > ---------------------------------------------------- > > Key: ORC-54 > URL: https://issues.apache.org/jira/browse/ORC-54 > Project: Orc > Issue Type: Improvement > Reporter: Mark Wagner > Assignee: Mark Wagner > > Schema evolution as it stands today allows adding fields to the end of > schemas or removing them from the end. However, because it is based on the > index of the column, you can only ever add or remove -- not both. > ORC files have the full schema information of their contents, so there's > actually enough metadata to support changing columns anywhere in the schema. -- This message was sent by Atlassian JIRA (v6.3.4#6332)