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Marko Mäkelä 14685b10df MDEV-32050: Deprecate&ignore innodb_purge_rseg_truncate_frequency 
The motivation of introducing the parameter
innodb_purge_rseg_truncate_frequency in
mysql/mysql-server@28bbd66ea5 and
mysql/mysql-server@8fc2120fed
seems to have been to avoid stalls due to freeing undo log pages
or truncating undo log tablespaces. In MariaDB Server,
innodb_undo_log_truncate=ON should be a much lighter operation
than in MySQL, because it will not involve any log checkpoint.

Another source of performance stalls should be
trx_purge_truncate_rseg_history(), which is shrinking the history list
by freeing the undo log pages whose undo records have been purged.
To alleviate that, we will introduce a purge_truncation_task that will
offload this from the purge_coordinator_task. In that way, the next
innodb_purge_batch_size pages may be parsed and purged while the pages
from the previous batch are being freed and the history list being shrunk.

The processing of innodb_undo_log_truncate=ON will still remain the
responsibility of the purge_coordinator_task.

purge_coordinator_state::count: Remove. We will ignore
innodb_purge_rseg_truncate_frequency, and act as if it had been
set to 1 (the maximum shrinking frequency).

purge_coordinator_state::do_purge(): Invoke an asynchronous task
purge_truncation_callback() to free the undo log pages.

purge_sys_t::iterator::free_history(): Free those undo log pages
that have been processed. This used to be a part of
trx_purge_truncate_history().

purge_sys_t::clone_end_view(): Take a new value of purge_sys.head
as a parameter, so that it will be updated while holding exclusive
purge_sys.latch. This is needed for race-free access to the field
in purge_truncation_callback().

Reviewed by: Vladislav Lesin
2023-10-25 09:11:58 +03:00

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@@ -244,7 +244,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/t2';
clust_index_size
-1
+6
connection default;
ROLLBACK;
connection analyze;
@@ -255,7 +255,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/t2';
clust_index_size
-1
+4
connection default;
BEGIN;
UPDATE t2 SET d1 = repeat(id, 200);
@@ -267,7 +267,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/t2';
clust_index_size
-1
+4
connection default;
ROLLBACK;
connection analyze;
@@ -278,11 +278,17 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/t2';
clust_index_size
-1
+4
connection default;
ALTER TABLE t2 DROP p;
+ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 1979. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
+SET innodb_strict_mode = OFF;
+ALTER TABLE t2 DROP p;
affected rows: 0
-info: Records: 0 Duplicates: 0 Warnings: 0
+info: Records: 0 Duplicates: 0 Warnings: 1
+Warnings:
+Warning 139 Row size too large (> 1979). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
+SET innodb_strict_mode = ON;
SELECT * FROM t2;
id c1 d1
1 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa asdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdf
@@ -330,8 +336,14 @@
affected rows: 0
info: Records: 0 Duplicates: 0 Warnings: 0
ALTER TABLE t3 ADD COLUMN b BLOB NOT NULL;
+ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 1979. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs
+SET innodb_strict_mode = OFF;
affected rows: 0
-info: Records: 0 Duplicates: 0 Warnings: 0
+ALTER TABLE t3 ADD COLUMN b BLOB NOT NULL;
+affected rows: 0
+info: Records: 0 Duplicates: 0 Warnings: 1
+Warnings:
+Warning 139 Row size too large (> 1979). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
INSERT INTO t3 SET id=4;
ERROR HY000: Field 'c2' doesn't have a default value
INSERT INTO t3 SET id=4, c2=0, b=0xf09f98b1;
@@ -344,7 +356,9 @@
ALTER TABLE t3 CHANGE t phrase TEXT DEFAULT 0xc3a4c3a448,
CHANGE b b BLOB NOT NULL DEFAULT 'binary line of business';
affected rows: 4
-info: Records: 4 Duplicates: 0 Warnings: 0
+info: Records: 4 Duplicates: 0 Warnings: 1
+Warnings:
+Warning 139 Row size too large (> 1979). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
INSERT INTO t3 SET id=5, c2=9;
Warnings:
Note 1265 Data truncated for column 'c7' at row 1
@@ -358,7 +372,9 @@
5 9 POLYGON((1 1,2 2,3 3,1 1)) 1970-01-01 03:00:42 1970-01-01 03:00:42 NULL 03:00:42 1970-01-01 ääH binary line of business
ALTER TABLE t3 DROP c3, DROP c7;
affected rows: 0
-info: Records: 0 Duplicates: 0 Warnings: 0
+info: Records: 0 Duplicates: 0 Warnings: 1
+Warnings:
+Warning 139 Row size too large (> 1979). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
SELECT * FROM t3;
id c2 c4 c5 c6 c8 phrase b
1 1 1970-01-01 03:00:42 1970-01-01 03:00:42 NULL 1970-01-01 The quick brown fox jumps over the lazy dog
@@ -386,6 +402,8 @@
(id INT PRIMARY KEY, c1 VARCHAR(4000), c2 VARCHAR(4000), c3 VARCHAR(1000),
p POINT NOT NULL DEFAULT ST_GeomFromText('POINT(0 0)'), SPATIAL INDEX(p))
ENGINE=InnoDB ROW_FORMAT=REDUNDANT;
+Warnings:
+Warning 139 Row size too large (> 1979). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
BEGIN;
INSERT INTO big
SET id=1, c1=REPEAT('a', 200), c2=REPEAT('b', 200), c3=REPEAT('c', 159);
@@ -404,13 +422,15 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/big';
clust_index_size
-3
+8
connection default;
ALTER TABLE big ADD COLUMN
(d1 INT DEFAULT 0, d2 VARCHAR(20) DEFAULT 'abcde',
d3 TIMESTAMP NOT NULL DEFAULT current_timestamp ON UPDATE current_timestamp);
affected rows: 0
-info: Records: 0 Duplicates: 0 Warnings: 0
+info: Records: 0 Duplicates: 0 Warnings: 1
+Warnings:
+Warning 139 Row size too large (> 1979). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
CHECKSUM TABLE big;
Table Checksum
test.big 1705165209
@@ -428,7 +448,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/big';
clust_index_size
-7
+28
connection default;
ROLLBACK;
CHECKSUM TABLE big;
@@ -442,7 +462,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/big';
clust_index_size
-3
+8
connection default;
InnoDB 0 transactions not purged
DROP TABLE t1,t2,t3,t4,big;
@@ -1166,7 +1186,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/t2';
clust_index_size
-1
+6
connection default;
ROLLBACK;
connection analyze;
@@ -1177,7 +1197,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/t2';
clust_index_size
-1
+4
connection default;
BEGIN;
UPDATE t2 SET d1 = repeat(id, 200);
@@ -1189,7 +1209,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/t2';
clust_index_size
-1
+4
connection default;
ROLLBACK;
connection analyze;
@@ -1200,11 +1220,13 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/t2';
clust_index_size
-1
+4
connection default;
ALTER TABLE t2 DROP p;
affected rows: 0
-info: Records: 0 Duplicates: 0 Warnings: 0
+info: Records: 0 Duplicates: 0 Warnings: 1
+Warnings:
+Warning 139 Row size too large (> 1982). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
SELECT * FROM t2;
id c1 d1
1 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa asdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdf
@@ -1253,7 +1275,9 @@
info: Records: 0 Duplicates: 0 Warnings: 0
ALTER TABLE t3 ADD COLUMN b BLOB NOT NULL;
affected rows: 0
-info: Records: 0 Duplicates: 0 Warnings: 0
+info: Records: 0 Duplicates: 0 Warnings: 1
+Warnings:
+Warning 139 Row size too large (> 1982). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
INSERT INTO t3 SET id=4;
ERROR HY000: Field 'c2' doesn't have a default value
INSERT INTO t3 SET id=4, c2=0, b=0xf09f98b1;
@@ -1266,7 +1290,9 @@
ALTER TABLE t3 CHANGE t phrase TEXT DEFAULT 0xc3a4c3a448,
CHANGE b b BLOB NOT NULL DEFAULT 'binary line of business';
affected rows: 4
-info: Records: 4 Duplicates: 0 Warnings: 0
+info: Records: 4 Duplicates: 0 Warnings: 1
+Warnings:
+Warning 139 Row size too large (> 1982). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
INSERT INTO t3 SET id=5, c2=9;
Warnings:
Note 1265 Data truncated for column 'c7' at row 1
@@ -1280,7 +1306,9 @@
5 9 POLYGON((1 1,2 2,3 3,1 1)) 1970-01-01 03:00:42 1970-01-01 03:00:42 NULL 03:00:42 1970-01-01 ääH binary line of business
ALTER TABLE t3 DROP c3, DROP c7;
affected rows: 0
-info: Records: 0 Duplicates: 0 Warnings: 0
+info: Records: 0 Duplicates: 0 Warnings: 1
+Warnings:
+Warning 139 Row size too large (> 1982). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
SELECT * FROM t3;
id c2 c4 c5 c6 c8 phrase b
1 1 1970-01-01 03:00:42 1970-01-01 03:00:42 NULL 1970-01-01 The quick brown fox jumps over the lazy dog
@@ -1308,6 +1336,8 @@
(id INT PRIMARY KEY, c1 VARCHAR(4000), c2 VARCHAR(4000), c3 VARCHAR(1000),
p POINT NOT NULL DEFAULT ST_GeomFromText('POINT(0 0)'), SPATIAL INDEX(p))
ENGINE=InnoDB ROW_FORMAT=COMPACT;
+Warnings:
+Warning 139 Row size too large (> 1982). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
BEGIN;
INSERT INTO big
SET id=1, c1=REPEAT('a', 200), c2=REPEAT('b', 200), c3=REPEAT('c', 159);
@@ -1326,13 +1356,15 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/big';
clust_index_size
-3
+7
connection default;
ALTER TABLE big ADD COLUMN
(d1 INT DEFAULT 0, d2 VARCHAR(20) DEFAULT 'abcde',
d3 TIMESTAMP NOT NULL DEFAULT current_timestamp ON UPDATE current_timestamp);
affected rows: 0
-info: Records: 0 Duplicates: 0 Warnings: 0
+info: Records: 0 Duplicates: 0 Warnings: 1
+Warnings:
+Warning 139 Row size too large (> 1982). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
CHECKSUM TABLE big;
Table Checksum
test.big 1705165209
@@ -1350,7 +1382,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/big';
clust_index_size
-7
+23
connection default;
ROLLBACK;
CHECKSUM TABLE big;
@@ -1364,7 +1396,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/big';
clust_index_size
-3
+7
connection default;
InnoDB 0 transactions not purged
DROP TABLE t1,t2,t3,t4,big;
@@ -2088,7 +2120,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/t2';
clust_index_size
-1
+6
connection default;
ROLLBACK;
connection analyze;
@@ -2099,7 +2131,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/t2';
clust_index_size
-1
+4
connection default;
BEGIN;
UPDATE t2 SET d1 = repeat(id, 200);
@@ -2111,7 +2143,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/t2';
clust_index_size
-1
+4
connection default;
ROLLBACK;
connection analyze;
@@ -2122,7 +2154,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/t2';
clust_index_size
-1
+4
connection default;
ALTER TABLE t2 DROP p;
affected rows: 0
@@ -2248,7 +2280,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/big';
clust_index_size
-3
+7
connection default;
ALTER TABLE big ADD COLUMN
(d1 INT DEFAULT 0, d2 VARCHAR(20) DEFAULT 'abcde',
@@ -2272,7 +2304,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/big';
clust_index_size
-7
+23
connection default;
ROLLBACK;
CHECKSUM TABLE big;
@@ -2286,7 +2318,7 @@
SELECT clust_index_size FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS
WHERE name = 'test/big';
clust_index_size
-3
+7
connection default;
InnoDB 0 transactions not purged
DROP TABLE t1,t2,t3,t4,big;
@@ -2836,6 +2868,6 @@
FROM information_schema.global_status
WHERE variable_name = 'innodb_instant_alter_column';
instants
-209
+211
SET GLOBAL innodb_instant_alter_column_allowed = @saved_allowance;
#
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