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Posted to issues@quickstep.apache.org by "Jianqiao Zhu (JIRA)" <ji...@apache.org> on 2016/12/17 00:56:58 UTC

[jira] [Created] (QUICKSTEP-66) Min/max statistics for table columns

Jianqiao Zhu created QUICKSTEP-66:
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             Summary: Min/max statistics for table columns
                 Key: QUICKSTEP-66
                 URL: https://issues.apache.org/jira/browse/QUICKSTEP-66
             Project: Apache Quickstep
          Issue Type: Improvement
          Components: Catalog
            Reporter: Jianqiao Zhu
            Assignee: Jianqiao Zhu


The improvement is to collect the min/max statistics for each column of a table with the `\analyze` command.

The min/max information helps query optimization and is required by some specialized fast-path operators (e.g. exact filters and vector-based aggregation).



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