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Posted to dev@hive.apache.org by "Carl Steinbach (JIRA)" <ji...@apache.org> on 2012/07/31 02:21:33 UTC
[jira] [Commented] (HIVE-3322) Split and deprecate hive.mapred.mode
[ https://issues.apache.org/jira/browse/HIVE-3322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13425414#comment-13425414 ]
Carl Steinbach commented on HIVE-3322:
--------------------------------------
The configuration property hive.mapred.mode currently controls the following behaviors:
{quote}
The mode in which the hive operations are being performed.
In strict mode, some risky queries are not allowed to run. They include:
* Cartesian Product.
* No partition being picked up for a query.
* Comparing bigints and strings.
* Comparing bigints and doubles.
* Orderby without limit.
* Buckets are not a multiple of each other in the tabled being joined, and the user asked for bucketed mapjoin.
{quote}
Users should have the option of enabling/disabling strict mode individually for each of these operation types. They should also have the option of a enabling a global strict mode that controls all of these properties by setting hive.enable.global.strict.mode=true.
> Split and deprecate hive.mapred.mode
> ------------------------------------
>
> Key: HIVE-3322
> URL: https://issues.apache.org/jira/browse/HIVE-3322
> Project: Hive
> Issue Type: Bug
> Components: Configuration, Query Processor
> Reporter: Carl Steinbach
>
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