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Diffstat (limited to 'mysql-test/suite/perfschema/r/dml_rwlock_instances.result')
| -rw-r--r-- | mysql-test/suite/perfschema/r/dml_rwlock_instances.result | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/mysql-test/suite/perfschema/r/dml_rwlock_instances.result b/mysql-test/suite/perfschema/r/dml_rwlock_instances.result index e127ace2dfe..4ffe125dfd7 100644 --- a/mysql-test/suite/perfschema/r/dml_rwlock_instances.result +++ b/mysql-test/suite/perfschema/r/dml_rwlock_instances.result @@ -18,3 +18,14 @@ UNLOCK TABLES; LOCK TABLES performance_schema.rwlock_instances WRITE; ERROR 42000: SELECT, LOCK TABLES command denied to user 'root'@'localhost' for table 'rwlock_instances' UNLOCK TABLES; +# +# MDEV-25325 column_comment for performance_schema tables +# +select column_name, column_comment +from information_schema.columns +where table_schema='performance_schema' and table_name='rwlock_instances'; +column_name column_comment +NAME Instrument name associated with the read write lock +OBJECT_INSTANCE_BEGIN Address in memory of the instrumented lock +WRITE_LOCKED_BY_THREAD_ID THREAD_ID of the locking thread if locked in write (exclusive) mode, otherwise NULL. +READ_LOCKED_BY_COUNT Count of current read locks held |