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https://issues.apache.org/jira/browse/HIVE-26072?focusedWorklogId=747616&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-747616
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ASF GitHub Bot logged work on HIVE-26072:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 25/Mar/22 05:24
Start Date: 25/Mar/22 05:24
Worklog Time Spent: 10m
Work Description: rbalamohan commented on pull request #3142:
URL: https://github.com/apache/hive/pull/3142#issuecomment-1078667359
compute_bit_vector is vectorized via
https://issues.apache.org/jira/browse/HIVE-24510
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Issue Time Tracking
-------------------
Worklog Id: (was: 747616)
Time Spent: 20m (was: 10m)
> Enable vectorization for stats gathering (tablescan op)
> -------------------------------------------------------
>
> Key: HIVE-26072
> URL: https://issues.apache.org/jira/browse/HIVE-26072
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Rajesh Balamohan
> Assignee: Ayush Saxena
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> https://issues.apache.org/jira/browse/HIVE-24510 enabled vectorization for
> compute_bit_vector.
> But tablescan operator for stats gathering is disabled by default.
> [https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/Vectorizer.java#L2577]
> Need to enable vectorization for this. This can significantly reduce runtimes
> for analyze statements for large tables.
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