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comment to user-level lock added

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2003-12-04 19:12:01 +03:00
parent 2e939d77df
commit 270b72ff4f
1 changed files with 5 additions and 0 deletions
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5
sql/sql_class.h
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@@ -505,6 +505,11 @@ public:
// TODO: document the variables below
MYSQL_LOCK *lock; /* Current locks */
MYSQL_LOCK *locked_tables; /* Tables locked with LOCK */
/*
One thread can hold up to one named user-level lock. This variable
points to a lock object if the lock is present. See item_func.cc and
chapter 'Miscellaneous functions', for functions GET_LOCK, RELEASE_LOCK.
*/
ULL *ull;
PREP_STMT *last_prepared_stmt;
#ifndef DBUG_OFF