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MDEV-6089 - MySQL WL#7305 "Improve MDL scalability by using lock-free hash"

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Removed MDL map partitions. Won't be needed when this MDEV is implemented.
This commit is contained in:
Sergey Vojtovich
2015-02-26 13:12:01 +04:00
parent 903160ef59
commit ecd3ff9f24
9 changed files with 91 additions and 210 deletions
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4
mysql-test/r/create_or_replace.result
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@@ -264,8 +264,8 @@ select * from information_schema.metadata_lock_info;
THREAD_ID LOCK_MODE LOCK_DURATION LOCK_TYPE TABLE_SCHEMA TABLE_NAME
# MDL_INTENTION_EXCLUSIVE MDL_EXPLICIT Global read lock
# MDL_SHARED_NO_READ_WRITE MDL_EXPLICIT Table metadata lock test t1
# MDL_INTENTION_EXCLUSIVE MDL_EXPLICIT Schema metadata lock mysqltest2
# MDL_INTENTION_EXCLUSIVE MDL_EXPLICIT Schema metadata lock test
# MDL_INTENTION_EXCLUSIVE MDL_EXPLICIT Schema metadata lock mysqltest2
# MDL_SHARED_NO_READ_WRITE MDL_EXPLICIT Table metadata lock mysqltest2 t2
create or replace table test.t1;
ERROR 42000: A table must have at least 1 column
@@ -291,8 +291,8 @@ select * from information_schema.metadata_lock_info;
THREAD_ID LOCK_MODE LOCK_DURATION LOCK_TYPE TABLE_SCHEMA TABLE_NAME
# MDL_INTENTION_EXCLUSIVE MDL_EXPLICIT Global read lock
# MDL_SHARED_NO_READ_WRITE MDL_EXPLICIT Table metadata lock test t1
# MDL_INTENTION_EXCLUSIVE MDL_EXPLICIT Schema metadata lock mysqltest2
# MDL_INTENTION_EXCLUSIVE MDL_EXPLICIT Schema metadata lock test
# MDL_INTENTION_EXCLUSIVE MDL_EXPLICIT Schema metadata lock mysqltest2
# MDL_SHARED_NO_READ_WRITE MDL_EXPLICIT Table metadata lock mysqltest2 t2
create or replace table test.t1 (a int) select 1 as 'a', 2 as 'a';
ERROR 42S21: Duplicate column name 'a'