tpcc-mysql 通过 mycat 对接mysql测试报错

[Huo662329]

1、bug描述
tpcc-mysql 通过 mycat 对接mysql测试报错

2、版本号(非常重要)
master版本

3、相关表的配置信息
schema.xml (native方式)
rule.xml (涉及到的路由函数)
server.xml(可选)

4、操作步骤

1. mycat对接到mysql 8.0.36 版本
2. tpcc-mysql 对接到mycat
3. 执行tpcc测试

5、期望结果
能整成测试

6、实际结果
报错
`root@x86pengcheng tpcc-mysql-master]#
[root@x86pengcheng tpcc-mysql-master]# ./tpcc_start -h 192.168.0.219 -P 8066 -d protodb -u xxx -p xxx -w 1 -c 1 -r 10 -l 10 -i 5

---

*** ###easy### TPC-C Load Generator ***

---

option h with value '192.168.0.219'
option P with value '8066'
option d with value 'protodb'
option u with value 'xxx'
option p with value 'xxx'
option w with value '1'
option c with value '1'
option r with value '10'
option l with value '10'
option i with value '5'

[server]: 192.168.0.219
[port]: 8066
[DBname]: protodb
[user]: xxx
[pass]: xxx
[warehouse]: 1
[connection]: 1
[rampup]: 10 (sec.)
[measure]: 10 (sec.)

RAMP-UP TIME.(10 sec.)
neword 0:4
2013, HY000, Lost connection to MySQL server during query
neword 0:1
2006, HY000, MySQL server has gone away
neword 0:1
2006, HY000, MySQL server has gone away
neword 0:1
2006, HY000, MySQL server has gone away
neword 0:1
2006, HY000, MySQL server has gone away
neword 0:1
2006, HY000, MySQL server has gone away
neword 0:1
2006, HY000, MySQL server has gone away`

7、额外信息
Add any other context about the problem here.

[Huo662329]

修复方案：ServerPrepareHandler.java 中增加如下代码：
if (bindValue.value instanceof String) {
SQLReplaceable parent = (SQLReplaceable) x.getParent();
String value = (String) bindValue.value;
parent.replace(x, new SQLCharExpr(value));
return false;
}
if (bindValue.value instanceof CharBuffer) {
SQLReplaceable parent = (SQLReplaceable) x.getParent();
String value = bindValue.value.toString();
parent.replace(x, new SQLCharExpr(value));
return false;
}