Mybatis Generator missing methods - mariadb

Question

I found that there were some missing methods in generated mapping interface while connecting mariadb , what mapper generated like is:
public interface Mapper {
int insert(Record record);
int insertSelective(Record record);
}
what should be:
public interface Mapper {
int deleteByPrimaryKey(Record id);
int insert(Record record);
int insertSelective(Record record);
City selectByPrimaryKey(Record id);
int updateByPrimaryKeySelective(Record record);
int updateByPrimaryKey(Record record);
}
I've tried several different connector lib, both mysql-connector-java and mariadb-java-client. And code generated is correct while connecting mysql, that reminds me if mybatis generator 1.3.6 doesn't support mariadb 5.7.20?
BTW the verison of mysql was 5.7.
here is my config.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
<classPathEntry location="/maven/repo/org/mariadb/jdbc/mariadb-java-client/2.2.1/mariadb-java-client-2.2.1.jar" />
<context id="mybatisgen" targetRuntime="MyBatis3">
<commentGenerator>
<property name="suppressAllComments" value="true" />
<property name="suppressDate" value="true" />
</commentGenerator>
<jdbcConnection driverClass="org.mariadb.jdbc.Driver"
connectionURL="jdbc:mariadb://127.0.0.1:3306/db?characterEncoding=utf8"
userId="user"
password="password">
</jdbcConnection>
<javaTypeResolver >
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<javaModelGenerator targetPackage="me.model" targetProject="src">
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator>
<sqlMapGenerator targetPackage="me.mapper" targetProject="src">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>
<javaClientGenerator type="XMLMAPPER" targetPackage="me.dao" targetProject="src">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>
<table tableName="test_table" domainObjectName="ATable"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">
</table>
</context>
</generatorConfiguration>

Answer 1

This happens when MyBatis Generator cannot obtain the primary key information from the JDBC driver (it calls DatabaseMetaData.getPrimaryKeys).
You can use the VirtualPrimaryKey plugin (documented at http://www.mybatis.org/generator/reference/plugins.html) to manually specify the primary key for a table when the JDBC driver is unable to return that information.