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https://issues.apache.org/jira/browse/HIVE-24515?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmitriy Fingerman reassigned HIVE-24515:
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Assignee: Dmitriy Fingerman (was: mahesh kumar behera)
> Analyze table job can be skipped when stats populated are already accurate
> --------------------------------------------------------------------------
>
> Key: HIVE-24515
> URL: https://issues.apache.org/jira/browse/HIVE-24515
> Project: Hive
> Issue Type: Improvement
> Reporter: Rajesh Balamohan
> Assignee: Dmitriy Fingerman
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h 40m
> Remaining Estimate: 0h
>
> For non-partitioned tables, stats detail should be present in table level,
> e.g
> {noformat}
> COLUMN_STATS_ACCURATE={"BASIC_STATS":"true","COLUMN_STATS":{"d_current_day":"true"...
> }}
> {noformat}
> For partitioned tables, stats detail should be present in partition level,
> {noformat}
> store_sales(ss_sold_date_sk=2451819)
> {totalSize=0, numRows=0, rawDataSize=0,
> COLUMN_STATS_ACCURATE={"BASIC_STATS":"true","COLUMN_STATS":{"ss_addr_sk":"true"....}}
>
> {noformat}
> When stats populated are already accurate, {{analyze table tn compute
> statistics for columns}} should skip launching the job.
>
> For ACID tables, stats are auto computed and it can skip computing stats
> again when stats are accurate.
>
>
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