Merge remote-tracking branch 'trunk/master'
Merge remote-tracking branch 'trunk/master'
Merge branch 'master' of github.com:wdw1206/Mycat-Server
fixed:A sql for a global table will be executed on all dataNodes of schema, not the table's.
If the value of TableConfig.getDataNodes() is not same as SchemaConfig.getAllDataNodes(), the operation should be executed on the table's dataNodes.