diff options
Diffstat (limited to 'mysql-test/suite/innodb/t/index_tree_operation.test')
-rw-r--r-- | mysql-test/suite/innodb/t/index_tree_operation.test | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/mysql-test/suite/innodb/t/index_tree_operation.test b/mysql-test/suite/innodb/t/index_tree_operation.test new file mode 100644 index 00000000..b9695db9 --- /dev/null +++ b/mysql-test/suite/innodb/t/index_tree_operation.test @@ -0,0 +1,74 @@ +-- source include/have_innodb.inc +-- source include/have_innodb_16k.inc +--echo # +--echo # Bug#15923864 (Bug#67718): +--echo # INNODB DRASTICALLY UNDER-FILLS PAGES IN CERTAIN CONDITIONS +--echo # +# InnoDB should try to insert to the next page before split, +# if the insert record for split_and_insert is last of the page. +# Otherwise, the follwing records 999,998,997 cause each page per record. +# + +--disable_query_log +SET @old_innodb_file_per_table = @@innodb_file_per_table; +--enable_query_log + +SET GLOBAL innodb_file_per_table=ON; + +CREATE TABLE t1 (a BIGINT PRIMARY KEY, b VARCHAR(4096)) ENGINE=InnoDB; +INSERT INTO t1 VALUES (0, REPEAT('a', 4096)); +INSERT INTO t1 VALUES (1000, REPEAT('a', 4096)); +INSERT INTO t1 VALUES (1001, REPEAT('a', 4096)); +INSERT INTO t1 VALUES (1002, REPEAT('a', 4096)); +INSERT INTO t1 VALUES (1, REPEAT('a', 4096)); +INSERT INTO t1 VALUES (2, REPEAT('a', 4096)); + +# | 0, 1, 2 | 1000, 1001, 1002| + +SELECT page_number, number_records +FROM information_schema.innodb_sys_tablespaces s1, +information_schema.innodb_buffer_page s2 +WHERE s1.space = s2.space AND name = 'test/t1' +AND page_type = "INDEX" ORDER BY page_number; + +INSERT INTO t1 VALUES (999, REPEAT('a', 4096)); + +# try to insert '999' to the end of '0,1,2' page, but no space +# the next '1000,1001,1002' page has also no space. +# | 0, 1, 2 | 999 | 1000, 1001, 1002| + +SELECT page_number, number_records +FROM information_schema.innodb_sys_tablespaces s1, +information_schema.innodb_buffer_page s2 +WHERE s1.space = s2.space AND name = 'test/t1' +AND page_type = "INDEX" ORDER BY page_number; + + +INSERT INTO t1 VALUES (998, REPEAT('a', 4096)); + +# try to insert to the end of '0,1,2' page, but no space +# the next '998' page has space. +# | 0, 1, 2 | 998, 999 | 1000, 1001, 1002| + +SELECT page_number, number_records +FROM information_schema.innodb_sys_tablespaces s1, +information_schema.innodb_buffer_page s2 +WHERE s1.space = s2.space AND name = 'test/t1' +AND page_type = "INDEX" ORDER BY page_number; + +INSERT INTO t1 VALUES (997, REPEAT('a', 4096)); + +# same +# | 0, 1, 2 | 997, 998, 999 | 1000, 1001, 1002| + +SELECT page_number, number_records +FROM information_schema.innodb_sys_tablespaces s1, +information_schema.innodb_buffer_page s2 +WHERE s1.space = s2.space AND name = 'test/t1' +AND page_type = "INDEX" ORDER BY page_number; + +DROP TABLE t1; + +--disable_query_log +SET GLOBAL innodb_file_per_table = @old_innodb_file_per_table; +--enable_query_log |