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Posted to issues@sentry.apache.org by "Na Li (JIRA)" <ji...@apache.org> on 2018/04/25 20:43:00 UTC

[jira] [Updated] (SENTRY-2211) Review the index creation for foreign keys

     [ https://issues.apache.org/jira/browse/SENTRY-2211?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Na Li updated SENTRY-2211:
--------------------------
    Issue Type: Task  (was: Improvement)

> Review the index creation for foreign keys
> ------------------------------------------
>
>                 Key: SENTRY-2211
>                 URL: https://issues.apache.org/jira/browse/SENTRY-2211
>             Project: Sentry
>          Issue Type: Task
>          Components: Sentry
>    Affects Versions: 2.1.0
>            Reporter: Na Li
>            Assignee: Na Li
>            Priority: Major
>
> It is generally recommended to create an index which leads on the foreign key column(s), to support not only joins between the primary and foreign keys, but also updates and deletes.
> We should review the foreign keys and check if there is an index defined, if not, should we create index.
> More details on The Benefits of Indexing Foreign Keys
> https://sqlperformance.com/2012/11/t-sql-queries/benefits-indexing-foreign-keys
> Indexes on foreign keys
> https://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:292016138754



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