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-rw-r--r--sql/set_var.h21
1 files changed, 17 insertions, 4 deletions
diff --git a/sql/set_var.h b/sql/set_var.h
index b33a3a968bb..603c3114d0e 100644
--- a/sql/set_var.h
+++ b/sql/set_var.h
@@ -74,7 +74,8 @@ public:
sys_var(const char *name_arg, sys_after_update_func func= NULL,
Binlog_status_enum binlog_status_arg= NOT_IN_BINLOG)
:name(name_arg), after_update(func), no_support_one_shot(1),
- binlog_status(binlog_status_arg)
+ binlog_status(binlog_status_arg),
+ m_allow_empty_value(TRUE)
{}
virtual ~sys_var() {}
void chain_sys_var(sys_var_chain *chain_arg)
@@ -109,8 +110,16 @@ public:
virtual bool is_readonly() const { return 0; }
virtual sys_var_pluginvar *cast_pluginvar() { return 0; }
+protected:
+ void set_allow_empty_value(bool allow_empty_value)
+ {
+ m_allow_empty_value= allow_empty_value;
+ }
+
private:
const Binlog_status_enum binlog_status;
+
+ bool m_allow_empty_value;
};
@@ -878,8 +887,11 @@ public:
sys_var_log_output(sys_var_chain *chain, const char *name_arg, ulong *value_arg,
TYPELIB *typelib, sys_after_update_func func)
:sys_var(name_arg,func), value(value_arg), enum_names(typelib)
- { chain_sys_var(chain); }
- bool check(THD *thd, set_var *var)
+ {
+ chain_sys_var(chain);
+ set_allow_empty_value(FALSE);
+ }
+ virtual bool check(THD *thd, set_var *var)
{
return check_set(thd, var, enum_names);
}
@@ -1085,7 +1097,7 @@ public:
virtual void set_default(THD *thd, enum_var_type type);
};
-
+#ifdef HAVE_EVENT_SCHEDULER
class sys_var_event_scheduler :public sys_var_long_ptr
{
/* We need a derived class only to have a warn_deprecated() */
@@ -1101,6 +1113,7 @@ public:
return type != STRING_RESULT && type != INT_RESULT;
}
};
+#endif
extern void fix_binlog_format_after_update(THD *thd, enum_var_type type);