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https://issues.apache.org/jira/browse/OPENJPA-1698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12888571#action_12888571
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Rick Curtis commented on OPENJPA-1698:
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I was looked at the postgres docs[1] and it appears that "IF EXISTS" isn't
valid for the "DELETE" command. I don't have postgres setup for unit tests yet
so I haven't been able to play with this too much yet. Can you post the entire
stack trace for the exception that you're hitting?
[1] http://www.postgresql.org/docs/current/static/sql-delete.html
> 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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