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https://issues.apache.org/jira/browse/OPENJPA-3074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18142441#comment-18142441
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ASF subversion and git services commented on OPENJPA-3074:
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Commit 5c7d590090a1211af76180cede28a63a65df7e06 in openjpa's branch
refs/heads/OPENJPA-3074 from Richard Zowalla
[ https://gitbox.apache.org/repos/asf?p=openjpa.git;h=5c7d59009 ]
[OPENJPA-3074] Test the version dependent settings of MySQLDictionary
The temporal types with a fraction of a second from MySQL 5.7, XML columns
from 5.1, the subselect flags before 4.1, the product version of a driver
that is not JDBC 3 compliant and the blob deserialization of a driver
before Connector/J 5.
> Share the common code of MySQLDictionary and MariaDBDictionary in a
> superclass and add the MySQL 8 reserved words
> -----------------------------------------------------------------------------------------------------------------
>
> Key: OPENJPA-3074
> URL: https://issues.apache.org/jira/browse/OPENJPA-3074
> Project: OpenJPA
> Issue Type: Improvement
> Reporter: Richard Zowalla
> Assignee: Richard Zowalla
> Priority: Major
> Fix For: 4.2.0
>
>
> MySQLDictionary and MariaDBDictionary both extend DBDictionary and duplicate
> most of their code, as noted in the review of #297 (OPENJPA-2943). Move the
> shared code into a common abstract superclass and keep the per-database
> differences and defaults in the two subclasses. All public configuration
> fields stay as they are.
> MySQLDictionary also lacks the reserved words MySQL 8.0 added, such as RANK,
> ROW_NUMBER, WINDOW and LATERAL. An entity attribute named rank therefore
> produces a CREATE TABLE statement that fails on MySQL 8.4 and 9.x.
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