haibow commented on issue #4954: Support schema evolution for consuming segments URL: https://github.com/apache/incubator-pinot/pull/4954#issuecomment-588529071 Updates: - Treat newly added columns in the mutable segment as physical columns instead of virtual columns - Refactor column provider, so the newly added columns and virtual columns ($segmentName, $hostName) can share utils to generate default null values - For `select *` queries, we will drop columns with names starting with '$'
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