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https://issues.apache.org/jira/browse/HIVE-3554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gang Tim Liu updated HIVE-3554:
-------------------------------
Description:
This is part of efforts for list bucketing feature:
https://cwiki.apache.org/Hive/listbucketing.html
This patch includes:
1. Query logic: hive chooses right sub-directory instead of partition directory.
2. alter table grammar which is required to support query logic
This patch doesn't include list bucketing DML. Main reasons:
1. risk. w/o DML, this patch won't impact any existing hive regression features
since no touch on any data manipulation so that very low risk.
2. manageability. w/ DML, patch is getting bigger and hard to review. Removing
DML, it's easy to review.
We still disable hive feature by default since DML is not in yet.
DML will be in follow-up patch.
was:
This is part of efforts for list bucketing feature:
https://cwiki.apache.org/Hive/listbucketing.html
This patch includes:
1. Query logic: hive chooses right sub-directory instead of partition directory.
2. alter table grammar which is required to support query logic
This patch doesn't include list bucketing DML. Main reasons:
1. risk. w/o DML, this patch won't impact any existing hive regression features
since no touch on any data manipulation.
2. manageability. w/ DML, patch is getting bigger and hard to review
We still disable hive feature by default since DML is not in yet.
DML will be in follow-up patch.
> Hive List Bucketing - Query logic
> ---------------------------------
>
> Key: HIVE-3554
> URL: https://issues.apache.org/jira/browse/HIVE-3554
> Project: Hive
> Issue Type: New Feature
> Reporter: Gang Tim Liu
> Assignee: Gang Tim Liu
>
> This is part of efforts for list bucketing feature:
> https://cwiki.apache.org/Hive/listbucketing.html
> This patch includes:
> 1. Query logic: hive chooses right sub-directory instead of partition
> directory.
> 2. alter table grammar which is required to support query logic
> This patch doesn't include list bucketing DML. Main reasons:
> 1. risk. w/o DML, this patch won't impact any existing hive regression
> features since no touch on any data manipulation so that very low risk.
> 2. manageability. w/ DML, patch is getting bigger and hard to review.
> Removing DML, it's easy to review.
> We still disable hive feature by default since DML is not in yet.
> DML will be in follow-up patch.
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