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      As a follow-up to DRILL-1328 which is adding NDV (num distinct values) support and creating the framework for statistics, we also need Histograms. These are needed for range predicates selectivity estimation as well as equality predicates when there is non-uniform distribution of data.

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            amansinha100 Aman Sinha added a comment -

            Added a link to the histogram design doc.

            amansinha100 Aman Sinha added a comment - Added a link to the histogram design doc.
            amansinha100 Aman Sinha added a comment -

            Histogram creation and usage for the following data types is supported as of commit # 849f896: INT, BIGINT, FLOAT, DOUBLE, TIME, DATE, TIMESTAMP, BOOLEAN. Marking this umbrella JIRA as fixed. For other data types, in particular VARCHAR, VARBINARY, I will open enhancement JIRA separately for a future release.

            amansinha100 Aman Sinha added a comment - Histogram creation and usage for the following data types is supported as of commit # 849f896: INT, BIGINT, FLOAT, DOUBLE, TIME, DATE, TIMESTAMP, BOOLEAN. Marking this umbrella JIRA as fixed. For other data types, in particular VARCHAR, VARBINARY, I will open enhancement JIRA separately for a future release.

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              amansinha100 Aman Sinha
              amansinha100 Aman Sinha
              Gautam Parai Gautam Parai
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