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Posted to dev@calcite.apache.org by "Ruben Q L (Jira)" <ji...@apache.org> on 2020/08/25 15:57:00 UTC

[jira] [Created] (CALCITE-4193) Implemente new sort operator: EnumerableExternalSort

Ruben Q L created CALCITE-4193:
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             Summary: Implemente 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


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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