mycat水平分库-分片枚举

docker run --name mycat -v /data/mycat/schema.xml:/usr/local/mycat/conf/schema.xml -v /data/mycat/rule.xml:/usr/local/mycat/conf/rule.xml  -v /data/mycat/partition-hash-int.txt:/usr/local/mycat/conf/partition-hash-int.txt -v /data/mycat/server.xml:/usr/local/mycat/conf/server.xml --privileged=true -p 8066:8066 -p 9066:9066 -d longhronshens/mycat-docker

server.xml:

	<schema name="TESTDB" checkSQLschema="false" sqlMaxLimit="100" >
		<table name="tb_goods" dataNode="dn3,dn4" rule="my_sharding_by_intfile"/>
	</schema>

rule.xml:

	<tableRule name="my_sharding_by_intfile">
		<rule>
			<columns>type</columns>
			<algorithm>my_hash_int</algorithm>
		</rule>
	</tableRule>

	<function name="my_hash_int"
		class="io.mycat.route.function.PartitionByFileMap">
		<property name="mapFile">partition-hash-int.txt</property>
		<property name="type">0</property>
                <property name="defaultNode">0</property>
	</function>

type为0时代表当前列为int类型,为1时为string类型

defaultNode为枚举识别不到时的默认节点

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partition-hash-int.txt:

1=0
2=1
3=1
4=1
5=0