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OPENJPA-2784 add docs for sub-second fractions in MariaDB and MySQL

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Mark Struberg 2019-04-03 00:21:02 +02:00
parent 14263ca52d
commit a5b50a5bd4
1 changed files with 31 additions and 0 deletions
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31
openjpa-project/src/doc/manual/supported_databases.xml
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@ -1176,6 +1176,37 @@ When reading LOB data from the database, the MySQL JDBC driver will actually
load all the data into memory at the same time. load all the data into memory at the same time.
</para> </para>
</listitem> </listitem>
<listitem>
<para>
As of MySQL 5.7 the <code>DATETIME</code> data type supports sub-second fractions.
The default of MySQL is to use no fractions.
The number of fractions can be explicitly set via scale:
<code>@Column(scale=3)</code> will lead to a <code>DATETIME(3)</code> column.
</para>
</listitem>
</itemizedlist>
</section>
</section>
<section id="dbsupport_mariadb">
<title>
MariaDB
</title>
<section id="dbsupport_mariadb_issues">
<title>
Known issues with MariaDB
</title>
<itemizedlist>
<listitem>
<para>
As of MariaDB 10.2 the <code>DATETIME</code> data type supports sub-second fractions.
The default of MariaDB is to use no fractions.
The number of fractions can be explicitly set via scale:
<code>@Column(scale=3)</code> will lead to a <code>DATETIME(3)</code> column.
</para>
</listitem>
</itemizedlist> </itemizedlist>
</section> </section>
</section> </section>