[jira] Updated: (OPENJPA-1698) SchemaAction=deleteTableContents throws error if table doesn't exist

["Rick Curtis (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OPENJPA-1698?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rick Curtis updated OPENJPA-1698:
---------------------------------

       Priority: Minor  (was: Major)
    Component/s: tooling
                     (was: jdbc)

Updated component  and lowered the priority as there is a workaround for this issue.

> 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: tooling
>    Affects Versions: 2.0.0
>         Environment: Win XP, Postgres 8.4, OpenJPA 2.0.0
>            Reporter: Oliver Bayer
>            Priority: Minor
>
> 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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