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https://issues.apache.org/jira/browse/HIVE-16022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15887011#comment-15887011
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Jason Dere edited comment on HIVE-16022 at 2/28/17 1:30 AM:
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I believe the partition column check here may be a workaround to the fact that
min/max/bloomfilter generation was not working properly on partition columns.
I'm going to remove this part of the changes and just focus on the part of the
fix related to in_bloom_filter() not being added properly to the MERGE
statement.
We can follow up on the partition column check later on.
was (Author: jdere):
I believe the partition column check here may be a workaround to the fact that
min/max/bloomfilter generation was not working properly on partition columns.
I'm going to remove this part of the changes and just focus on the part of the
fix related to in_bloom_filter() not being added properly to the MERGE
statement.
> BloomFilter check not showing up in MERGE statement queries
> -----------------------------------------------------------
>
> Key: HIVE-16022
> URL: https://issues.apache.org/jira/browse/HIVE-16022
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
> Reporter: Jason Dere
> Assignee: Jason Dere
> Attachments: HIVE-16022.1.patch, HIVE-16022.2.patch,
> HIVE-16022.3.patch, HIVE-16022.4.patch
>
>
> Running explain on a MERGE statement with runtime filtering enabled, I see
> the min/max being applied on the large table, but not the bloom filter check:
> {noformat}
> explain merge into acidTbl as t using nonAcidOrcTbl s ON t.a = s.a
> WHEN MATCHED AND s.a > 8 THEN DELETE
> WHEN MATCHED THEN UPDATE SET b = 7
> WHEN NOT MATCHED THEN INSERT VALUES(s.a, s.b)
> ...
> Map 1
> Map Operator Tree:
> TableScan
> alias: t
> Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL
> Column stats: NONE
> Filter Operator
> predicate: a BETWEEN DynamicValue(RS_3_s_a_min) AND
> DynamicValue(RS_3_s_a_max) (type: boolean)
> Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL
> Column stats: NONE
> {noformat}
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