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Posted to derby-dev@db.apache.org by "Mamta A. Satoor (JIRA)" <ji...@apache.org> on 2012/09/28 20:27:08 UTC

[jira] [Updated] (DERBY-4818) Derby is taking a long time to compile SQLs with more than 9 tables for the first time.

     [ https://issues.apache.org/jira/browse/DERBY-4818?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mamta A. Satoor updated DERBY-4818:
-----------------------------------

    Urgency: Normal
     Labels: derby_triage10_10  (was: )
    
> Derby is taking a long time to compile SQLs with more than 9 tables for the first time.
> ---------------------------------------------------------------------------------------
>
>                 Key: DERBY-4818
>                 URL: https://issues.apache.org/jira/browse/DERBY-4818
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 10.4.1.3
>         Environment: All OS platforms and all JVM versions on Derby 10.4.1.3
>            Reporter: Trung Tran
>              Labels: derby_triage10_10
>
> I have SQLs with 9 or more tables and it takes a couple of minutes to compile these SQLs for the first time.  I'm assuming that the optimizer is taking a long time to figure out the query plan.

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