[jira] [Created] (HIVE-21559) [performance] select distinct partitioncolumn from external table takes 10s rather than pull from HMS

[t oo (JIRA)]

t oo created HIVE-21559:
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             Summary: [performance] select distinct partitioncolumn from 
external table takes 10s rather than pull from HMS
                 Key: HIVE-21559
                 URL: https://issues.apache.org/jira/browse/HIVE-21559
             Project: Hive
          Issue Type: Improvement
          Components: HiveServer2
            Reporter: t oo


select distinct partitioncolumn from external table with only 3 partitions (on 
s3a) takes 10 seconds, why can't this pull from HiveMetastore partitions in < 2 
seconds?



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