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https://issues.apache.org/jira/browse/PHOENIX-153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ethan Wang updated PHOENIX-153:
-------------------------------
Description:
Support the standard SQL TABLESAMPLE clause by implementing a filter that uses
a skip next hint based on the region boundaries of the table to only return n
rows per region.
[Update]
Patch:
https://git-wip-us.apache.org/repos/asf?p=phoenix.git;a=commitdiff;h=5e33dc12bc088bd0008d89f0a5cd7d5c368efa25
was:Support the standard SQL TABLESAMPLE clause by implementing a filter that
uses a skip next hint based on the region boundaries of the table to only
return n rows per region.
> Implement TABLESAMPLE clause
> ----------------------------
>
> Key: PHOENIX-153
> URL: https://issues.apache.org/jira/browse/PHOENIX-153
> Project: Phoenix
> Issue Type: Task
> Reporter: James Taylor
> Assignee: Ethan Wang
> Labels: enhancement
> Fix For: 4.12.0
>
> Attachments: Sampling_Accuracy_Performance.jpg
>
>
> Support the standard SQL TABLESAMPLE clause by implementing a filter that
> uses a skip next hint based on the region boundaries of the table to only
> return n rows per region.
> [Update]
> Patch:
> https://git-wip-us.apache.org/repos/asf?p=phoenix.git;a=commitdiff;h=5e33dc12bc088bd0008d89f0a5cd7d5c368efa25
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