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From "Eric Charles (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OPENJPA-223) columnNames field of @Index annotation is ignored
Date Sun, 25 Nov 2012 12:40:58 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13503492#comment-13503492
] 

Eric Charles commented on OPENJPA-223:
--------------------------------------

Hi there,
We need to create index on 2 columns (see MAILBOX-186).
Any further news on this OPENJPA-223 or any workaround that could help?
Thx, Eric

                
> columnNames field of @Index annotation is ignored
> -------------------------------------------------
>
>                 Key: OPENJPA-223
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-223
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jdbc
>    Affects Versions: 0.9.6
>            Reporter: Marc Prud'hommeaux
>
> It looks like we completely ignore the "columnNames" field of the org.apache.openjpa.persistence.jdbc.Index
annotation. From Jonathan Feinberg on the mailing list:
> Is there any way to cause the OpenJPA schema builder to emit an index across multiple
columns? My attempt,
>  @Column(columnDefinition = "bytea")
>  @Index(name = "i_owner_md5", columnNames = { "owner_id, md5" })
>  public byte[] getMd5()
>  {
>   return md5;
>  }
> is silently misinterpreted, in that only the annotated field (md5) gets indexed.

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