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https://issues.apache.org/jira/browse/DRILL-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16807778#comment-16807778
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ASF GitHub Bot commented on DRILL-7089:
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vvysotskyi commented on issue #1728: DRILL-7089: Implement caching for
TableMetadataProvider at query level and adapt statistics to use Drill
metastore API
URL: https://github.com/apache/drill/pull/1728#issuecomment-479008544
Diagrams of the classes introduced in this PR:
https://docs.google.com/presentation/d/1XG_xgR4okzXaJ3Z7HFHfzCwlM5VkNfre8GFEAd2Zo8k/edit?usp=sharing
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> Implement caching of BaseMetadata classes
> -----------------------------------------
>
> Key: DRILL-7089
> URL: https://issues.apache.org/jira/browse/DRILL-7089
> Project: Apache Drill
> Issue Type: Sub-task
> Affects Versions: 1.16.0
> Reporter: Volodymyr Vysotskyi
> Assignee: Volodymyr Vysotskyi
> Priority: Major
> Fix For: 1.16.0
>
>
> In the scope of DRILL-6852 were introduced new classes for metadata usage.
> These classes may be reused in other GroupScan instances to preserve heap
> usage for the case when metadata is large.
> The idea is to store {{BaseMetadata}} inheritors in {{DrillTable}} and pass
> them to the {{GroupScan}}, so in the scope of the single query, it will be
> possible to reuse them.
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