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Posted to commits@druid.apache.org by GitBox <gi...@apache.org> on 2019/07/02 22:51:18 UTC

[GitHub] [incubator-druid] gianm opened a new pull request #8013: GroupBy: Fix improper uses of StorageAdapter#getColumnCapabilities.

gianm opened a new pull request #8013: GroupBy: Fix improper uses of StorageAdapter#getColumnCapabilities.
URL: https://github.com/apache/incubator-druid/pull/8013
 
 
   1) A usage in "isArrayAggregateApplicable" that would potentially incorrectly use
      array-based aggregation on a virtual column that shadows a real column.
   2) A usage in "process" that would potentially use the more expensive multi-value
      aggregation path on a singly-valued virtual column. (No correctness issue, but
      a performance issue.)

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