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https://issues.apache.org/jira/browse/ASTERIXDB-3480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vijay Sarathy reassigned ASTERIXDB-3480:
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Assignee: Vijay Sarathy
> Automate samples creation in CBO
> --------------------------------
>
> Key: ASTERIXDB-3480
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-3480
> Project: Apache AsterixDB
> Issue Type: Improvement
> Components: COMP - Compiler
> Reporter: Vijay Sarathy
> Assignee: Vijay Sarathy
> Priority: Major
> Labels: triaged
>
> CBO is enabled by default in CBO, but there is a caveat. Unless samples are
> created on all the collections in a query, CBO will not be invoked. So, a
> customer, who is expecting CBO to be used (since it is ON by default), and is
> not aware of the samples issue, will not get the benefits of CBO.
> The creation of samples in CBO needs to be automated or there should be some
> other mechanism to inform the user that samples are needed for CBO to work.
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