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Posted to issues@spark.apache.org by "William Wong (JIRA)" <ji...@apache.org> on 2019/03/22 16:42:00 UTC

[jira] [Created] (SPARK-27248) REFRESH TABLE should recreate cache with same cache name and storage level

William Wong created SPARK-27248:
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             Summary: REFRESH TABLE should recreate cache with same cache name and storage level
                 Key: SPARK-27248
                 URL: https://issues.apache.org/jira/browse/SPARK-27248
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: William Wong


If we refresh a cached table, the table cache will be first uncached and then recache (lazily). Currently, the logic is embedded in CatalogImpl.refreshTable method.

The current implementation does not preserve the cache name and storage level. As a result, cache name and cache level could be changed after a REFERSH. IMHO, it is not what a user would expect.

I would like to fix this behavior by first save the cache name and storage level for recaching the table.



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