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Posted to issues@hive.apache.org by "Gopinath (Jira)" <ji...@apache.org> on 2026/10/14 11:52:00 UTC

[jira] [Created] (HIVE-30163) PTF: Vectorize stddev_pop and other variance/stddev functions

Gopinath created HIVE-30163:
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             Summary: PTF: Vectorize stddev_pop and other variance/stddev functions
                 Key: HIVE-30163
                 URL: https://issues.apache.org/jira/browse/HIVE-30163
             Project: Hive
          Issue Type: Sub-task
            Reporter: Gopinath


Vectorized PTF supports avg, count, cume_dist, dense_rank, first_value, lag, last_value, lead, max, min, ntile, percent_rank, rank, row_number and sum, but none of variance, var_pop, var_samp, stddev, stddev_pop, stddev_samp. For example, a query in vector_windowing.q still runs its reducer in row mode with notVectorizedReason: PTF operator: stddev_pop not in supported functions [...].



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