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Posted to issues@calcite.apache.org by "Ruben Q L (Jira)" <ji...@apache.org> on 2020/08/25 15:58:00 UTC
[jira] [Updated] (CALCITE-4193) Implement new sort operator:
EnumerableExternalSort
[ https://issues.apache.org/jira/browse/CALCITE-4193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ruben Q L updated CALCITE-4193:
-------------------------------
Summary: Implement new sort operator: EnumerableExternalSort (was: Implemente new sort operator: EnumerableExternalSort)
> Implement new sort operator: EnumerableExternalSort
> ---------------------------------------------------
>
> Key: CALCITE-4193
> URL: https://issues.apache.org/jira/browse/CALCITE-4193
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Ruben Q L
> Priority: Major
>
> Sometimes we new to sort a big volume of data which does not fit into memory. In this situation EnumerableSort will cause an OutOfMemoryError.
> The solution for such a scenario will be using a different sorting algorithm: [External Sort|https://en.wikipedia.org/wiki/External_sorting].
> The goal of the current ticket is to implement a new operator (EnumerableExternalSort) to provide this feature.
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