02 2016 档案

KEY
摘要：typedef struct st_key { uint key_length; /* Tot length of key */ ulong flags; /* dupp key and pack flags */ uint key_parts; /* How many ke... 阅读全文
posted @ 2016-02-25 15:11 taek 阅读(249) 评论(0) 推荐(0)
KEYUSE
摘要：typedef struct keyuse_t { TABLE *table; Item *val; /** equality condition is on *cond_guard == FALSE equality condition is off NULL - Otherwise (the sourc... 阅读全文
posted @ 2016-02-25 15:06 taek 阅读(192) 评论(0) 推荐(0)
class JOIN
摘要：class JOIN :public Sql_alloc { JOIN(const JOIN &rhs); /** *fields; List group_fields, group_fields_cache; TABLE *tmp_table; /// used to store 2 possible tmp table ... 阅读全文
posted @ 2016-02-05 11:42 taek 阅读(200) 评论(0) 推荐(0)
JOIN_TAB
摘要：typedef struct st_join_table { st_join_table() {} /* Remove gcc warning */ TABLE *table; KEYUSE *keyuse; /**select->quick. MySQL needs this i... 阅读全文
posted @ 2016-02-05 11:42 taek 阅读(246) 评论(0) 推荐(0)
gdb mysq
摘要：1.找到mysqld的id [root@default-tpl ~]# ps aux|grep mysqldroot 5006 0.0 0.0 103252 796 pts/6 S+ 15:15 0:00 grep mysqldmysql 27888 0.0 4.0 817168 47068 ? S 阅读全文
posted @ 2016-02-01 15:23 taek 阅读(217) 评论(0) 推荐(0)