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From "Oliver Bayer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (OPENJPA-1698) SchemaAction=deleteTableContents throws error if table doesn't exist
Date Wed, 04 Aug 2010 20:19:16 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-1698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12895399#action_12895399
] 

Oliver Bayer commented on OPENJPA-1698:
---------------------------------------

Hi Rick,

what do you think about my suggestions above? 
Are you going to implement them or are they too strict / specific?

If you find some time can you please look at my related question (OPENJPA-1760)?

Thanks in advance.

Oli

> SchemaAction=deleteTableContents throws error if table doesn't exist
> --------------------------------------------------------------------
>
>                 Key: OPENJPA-1698
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1698
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jdbc
>    Affects Versions: 2.0.0
>         Environment: Win XP, Postgres 8.4, OpenJPA 2.0.0
>            Reporter: Oliver Bayer
>
> Hi,
> I want to set up my project during development so that all table contents are deleted
with the following property in persistence.xml:
> <property name="openjpa.jdbc.SynchronizeMappings" value="buildSchema(SchemaAction=add,SchemaAction=deleteTableContents)"/>
> If I start up with an empty database I get the following error:
> org.apache.openjpa.persistence.PersistenceException: ERROR: Relation >>openjpa_sequence_table<<
doesn't exist.
> This error is raised because of the following sql statement: DELETE FROM OPENJPA_SEQUENCE_TABLE.
> My suggested solution would be to modify DBDictionary.getDeleteTableContentsSQL so that
it only deletes content from a table if the table exists.
> DBDictionary: Line 2183
> ---------------------------------
> change: deleteSQL.add("DELETE FROM " + toDBName(tables[i].getFullIdentifier()));
> to: deleteSQL.add("DELETE FROM " + toDBName(tables[i].getFullIdentifier()) + " IF EXISTS");
> What do you mean: Is this a valid bugfix? I'm looking forward to your responses.
> Greets Oli

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