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

This commit is contained in:
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.
</para>
</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>
</section>
</section>