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https://issues.apache.org/jira/browse/OPENJPA-1812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12914022#action_12914022
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Donald Woods commented on OPENJPA-1812:
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Can you post the output from when the disk based H2 db is used? Sounds like a
H2 problem with in-memory behaving differently than on-disk, but lets look at
the logs before declaring that....
BTW - we run Derby as both on-disk (-Ptest-derby) and in-memory
(-Ptest-derbymem) and all the junits pass.
> Schema synchronizer fails to build tables and indexes when running with H2
> in-memory database
> ---------------------------------------------------------------------------------------------
>
> Key: OPENJPA-1812
> URL: https://issues.apache.org/jira/browse/OPENJPA-1812
> Project: OpenJPA
> Issue Type: Bug
> Affects Versions: 2.0.1
> Reporter: Willis Blackburn
> Priority: Minor
>
> Using the example from OPENJPA-1804 I added HostName and EmailAddress to the
> class list, updated the JVM launcher command to use the Java agent enhancer,
> and added:
> <property name="openjpa.jdbc.SynchronizeMappings"
> value="buildSchema(foreignKeys=true)"/>
> Note also:
> <property name="openjpa.ConnectionURL" value="jdbc:h2:mem:test"/>
> When I tried to run the example, it failed when attempting to create an
> index, saying that address_book_table (which it created a few milliseconds
> earlier) did not exist.
> Changing H2 to use a database on disk fixed the problem:
> <property name="openjpa.ConnectionURL"
> value="jdbc:h2:~/openjpatestdb"/>
> But why is OpenJPA sensitive to whether I'm using an in-memory or disk H2
> database?
> I tried opening the same in-memory database URL using my IDE's JDBC console.
> Of course I got a different database, since the IDE is running in its own
> JVM. But I was able to execute the "create table" from the OpenJPA log
> followed by the "create index" without any trouble.
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