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Posted to issues@hive.apache.org by "Sahil Takiar (JIRA)" <ji...@apache.org> on 2018/02/03 02:45:00 UTC
[jira] [Updated] (HIVE-18552) Split hive.strict.checks.large.query
into two configs
[ https://issues.apache.org/jira/browse/HIVE-18552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sahil Takiar updated HIVE-18552:
--------------------------------
Resolution: Fixed
Fix Version/s: 3.0.0
Status: Resolved (was: Patch Available)
Pushed to master, thanks for the review Vihang.
> Split hive.strict.checks.large.query into two configs
> -----------------------------------------------------
>
> Key: HIVE-18552
> URL: https://issues.apache.org/jira/browse/HIVE-18552
> Project: Hive
> Issue Type: Improvement
> Components: Hive
> Reporter: Sahil Takiar
> Assignee: Sahil Takiar
> Priority: Major
> Fix For: 3.0.0
>
> Attachments: HIVE-18552.1.patch, HIVE-18552.2.patch, HIVE-18552.3.patch, HIVE-18552.4.patch
>
>
> {{hive.strict.checks.large.query}} controls the strict checks for restricting order bys with no limits, and scans of a partitioned table without a filter on the partition table.
> While both checks prevent "large" queries from being run, they both control very different behavior. It would be better if users could control these restrictions separately.
> Furthermore, many users make the mistake of abusing partitioned tables and often end up in a situation where they are running queries that are doing full-table scans of partitioned tables. This can lead to lots of issues for Hive - e.g. OOM issues because so many partitions are loaded in memory. So it would be good if we enabled this restriction by default.
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