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-rw-r--r--storage/example/ha_example.cc5
1 files changed, 5 insertions, 0 deletions
diff --git a/storage/example/ha_example.cc b/storage/example/ha_example.cc
index a4cdcafc6d0..53af99dee97 100644
--- a/storage/example/ha_example.cc
+++ b/storage/example/ha_example.cc
@@ -723,6 +723,11 @@ int ha_example::external_lock(THD *thd, int lock_type)
Called from lock.cc by get_lock_data().
+ @note
+ In this method one should NEVER rely on table->in_use, it may, in fact,
+ refer to a different thread! (this happens if get_lock_data() is called
+ from mysql_lock_abort_for_thread() function)
+
@see
get_lock_data() in lock.cc
*/