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MDEV-8931: (server part of) session state tracking

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System variables tracking
This commit is contained in:
Oleksandr Byelkin 2016-04-15 20:47:45 +02:00
commit c8948b0d0d
22 changed files with 1483 additions and 153 deletions
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10
sql/sys_vars.cc
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@ -5375,6 +5375,16 @@ static Sys_var_ulong Sys_log_tc_size(
BLOCK_SIZE(my_getpagesize()));
#endif
const LEX_CSTRING SESSION_TRACK_SYSTEM_VARIABLES_NAME=
{STRING_WITH_LEN("session_track_system_variables")};
static Sys_var_sesvartrack Sys_track_session_sys_vars(
SESSION_TRACK_SYSTEM_VARIABLES_NAME.str,
"Track changes in registered system variables.",
CMD_LINE(REQUIRED_ARG), IN_SYSTEM_CHARSET,
DEFAULT("autocommit,character_set_client,character_set_connection,"
"character_set_results,time_zone"),
NO_MUTEX_GUARD);
static bool update_session_track_schema(sys_var *self, THD *thd,
enum_var_type type)