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Posted to commits@pinot.apache.org by GitBox <gi...@apache.org> on 2020/02/19 23:31:58 UTC
[GitHub] [incubator-pinot] haibow commented on issue #4954: Support schema
evolution for consuming segments
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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