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Posted to commits@pinot.apache.org by GitBox <gi...@apache.org> on 2020/07/30 07:27:39 UTC
[GitHub] [incubator-pinot] Jackie-Jiang opened a new issue #5771: Improve performance for DISTINCT queries
Jackie-Jiang opened a new issue #5771:
URL: https://github.com/apache/incubator-pinot/issues/5771
Optimizations to consider:
- Early-termination for DISTINCT without order-by (need to model DISTINCT as a new operator instead of aggregation function)
- Store dictIds inner segment to reduce the unnecessary dictionary reads
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[GitHub] [incubator-pinot] Jackie-Jiang commented on issue #5771: Improve performance for DISTINCT queries
Posted by GitBox <gi...@apache.org>.
Jackie-Jiang commented on issue #5771:
URL: https://github.com/apache/incubator-pinot/issues/5771#issuecomment-666155362
- Use dictionary to solve query without filter
- Specialize DISTINCT on single column (store Object instead of Object[] in the set)
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[GitHub] [incubator-pinot] Jackie-Jiang commented on issue #5771: Improve performance for DISTINCT queries
Posted by GitBox <gi...@apache.org>.
Jackie-Jiang commented on issue #5771:
URL: https://github.com/apache/incubator-pinot/issues/5771#issuecomment-673904643
@kishoreg Not yet
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[GitHub] [incubator-pinot] kishoreg commented on issue #5771: Improve performance for DISTINCT queries
Posted by GitBox <gi...@apache.org>.
kishoreg commented on issue #5771:
URL: https://github.com/apache/incubator-pinot/issues/5771#issuecomment-673888182
This is done right?
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