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python程序段错误， log: segfault at 1a8 ip 00007f31022b30c9 sp 00007f30687f6bc0 error 4 in libmysqlclient.so.18.1.0[7f3102269000+2ff000] 问题原因： 执行Mysql函数未加锁， 程序为多线程

1. 同表拷贝插入     insert into Table1(name,age,sex)  select  name,age,"Male" FROM Table1 where id=100 2. 不同表拷贝插入    insert into Table1(name,age,sex)  select  name,age,"Male" FROM Table2 where id=100

使用C操作MySQL，程序完成时使用Valgrind检测，发现有内存泄漏。 ==4785== LEAK SUMMARY: ==4785== definitely lost: 0 bytes in 0 blocks ==4785== indirectly lost: 0 bytes in 0 blocks ==4785== possibly lost: 0 bytes in