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mariadb/mysql-test/suite/innodb/t/undo_log.test
Eugene Kosov 5ebef42238 MDEV-19292 "Row size too large" error when creating table with lots columns when row format is DYNAMIC or COMPRESSED 
Basic idea of the patch: disallow creating tables which allow to create
rows which are too big to insert. In other words, if user created a table user
should never see an errors like 'can not insert row as it is too big for current
page size'.

SET innodb_strict_mode=OFF; will allow to create very long tables and only a
warning will be issued.

dict_table_t::get_overflow_field_local_len(): this function lets know a maximum
local field len for overflow fields for every file and row format.

innobase_check_column_length(): improve name to too_big_key_part_length()
and reuse in a different part of code.

create_table_info_t::prepare_create_table(): add check for maximum allowed
key part length to keep ALGORITHM=COPY behavior similar to ALGORITHM=INPLACE
behavior. Affected test is innodb.strict_mode

Rename dict_index_too_big_for_tree() to
dict_index_t::rec_potentially_too_big(): copy overflow-related size computation
from dtuple_convert_big_rec(). A lot of tests was changed because of that.
I wonder whether users will complain about it?

Test innodb.max_record_size tests dict_index_t::rec_potentially_too_big()
for different row formats and page sizes.
2019-07-05 17:02:21 +03:00

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--source include/have_innodb.inc
call mtr.add_suppression("Cannot add field `b_str_20` in table `test`.`test_tab` because after adding it, the row size is");
SET innodb_strict_mode=OFF;
CREATE TABLE test_tab (
a_str_18 mediumtext,
b_str_3 varchar(32) DEFAULT NULL,
a_str_13 mediumtext,
b_str_5 varchar(40) DEFAULT NULL,
b_str_6 varchar(50) DEFAULT NULL,
b_str_7 char(32) DEFAULT NULL,
b_str_8 varchar(32) DEFAULT NULL,
b_str_9 varchar(255) DEFAULT NULL,
a_str_28 char(255) DEFAULT NULL,
a_str_27 varchar(255) DEFAULT NULL,
b_str_10 varchar(32) DEFAULT NULL,
a_str_26 varchar(255) DEFAULT NULL,
a_str_6 varchar(50) DEFAULT NULL,
b_str_11 varchar(32) DEFAULT NULL,
b_str_12 varchar(255) DEFAULT NULL,
b_str_13 char(32) DEFAULT NULL,
b_str_14 varchar(32) DEFAULT NULL,
b_str_15 char(32) DEFAULT NULL,
b_str_16 char(32) DEFAULT NULL,
b_str_17 varchar(32) DEFAULT NULL,
b_str_18 varchar(32) DEFAULT NULL,
a_str_25 varchar(40) DEFAULT NULL,
b_str_19 varchar(255) DEFAULT NULL,
a_str_23 varchar(40) DEFAULT NULL,
b_str_20 varchar(32) DEFAULT NULL,
a_str_21 varchar(255) DEFAULT NULL,
a_str_20 varchar(255) DEFAULT NULL,
a_str_39 varchar(255) DEFAULT NULL,
a_str_38 varchar(255) DEFAULT NULL,
a_str_37 varchar(255) DEFAULT NULL,
b_str_21 char(32) DEFAULT NULL,
b_str_23 varchar(80) DEFAULT NULL,
b_str_24 varchar(32) DEFAULT NULL,
b_str_25 varchar(32) DEFAULT NULL,
b_str_26 char(32) NOT NULL DEFAULT '',
b_str_27 varchar(255) DEFAULT NULL,
a_str_36 varchar(255) DEFAULT NULL,
a_str_33 varchar(100) DEFAULT NULL,
a_ref_10 char(32) DEFAULT NULL,
b_str_28 char(32) DEFAULT NULL,
b_str_29 char(32) DEFAULT NULL,
a_ref_6 char(32) DEFAULT NULL,
a_ref_12 varchar(32) DEFAULT NULL,
a_ref_11 varchar(32) DEFAULT NULL,
a_str_49 varchar(40) DEFAULT NULL,
b_str_30 varchar(32) DEFAULT NULL,
a_ref_3 varchar(32) DEFAULT NULL,
a_str_48 varchar(40) DEFAULT NULL,
a_ref_1 char(32) DEFAULT NULL,
b_str_31 varchar(32) DEFAULT NULL,
b_str_32 varchar(255) DEFAULT NULL,
b_str_33 char(32) DEFAULT NULL,
b_str_34 varchar(32) DEFAULT NULL,
a_str_47 varchar(40) DEFAULT NULL,
b_str_36 varchar(255) DEFAULT NULL,
a_str_46 varchar(40) DEFAULT NULL,
a_str_45 varchar(255) DEFAULT NULL,
b_str_38 varchar(32) DEFAULT NULL,
b_str_39 char(32) DEFAULT NULL,
b_str_40 varchar(32) DEFAULT NULL,
a_str_41 varchar(255) DEFAULT NULL,
b_str_41 varchar(32) DEFAULT NULL,
PRIMARY KEY (b_str_26),
UNIQUE KEY a_str_47 (a_str_47),
UNIQUE KEY a_str_49 (a_str_49),
UNIQUE KEY a_str_33 (a_str_33),
UNIQUE KEY a_str_46 (a_str_46),
UNIQUE KEY a_str_48 (a_str_48),
KEY b_str_18 (b_str_18),
KEY a_str_26 (a_str_26),
KEY b_str_27 (b_str_27,b_str_19),
KEY b_str_41 (b_str_41),
KEY b_str_15 (b_str_15),
KEY a_str_20 (a_str_20),
KEY b_str_17 (b_str_17),
KEY b_str_40 (b_str_40),
KEY b_str_24 (b_str_24),
KEY b_str_10 (b_str_10),
KEY b_str_16 (b_str_16),
KEY b_str_29 (b_str_29),
KEY a_str_41 (a_str_41),
KEY b_str_7 (b_str_7),
KEY a_str_45 (a_str_45),
KEY a_str_28 (a_str_28),
KEY a_str_37 (a_str_37),
KEY b_str_6 (b_str_6),
KEY a_ref_6 (a_ref_6),
KEY b_str_34 (b_str_34),
KEY b_str_38 (b_str_38),
KEY a_ref_10 (a_ref_10),
KEY b_str_21 (b_str_21),
KEY b_str_23 (b_str_23,b_str_19),
KEY b_str_33 (b_str_33),
KEY a_ref_12 (a_ref_12),
KEY a_str_18 (a_str_18(255)),
KEY a_str_39 (a_str_39),
KEY a_str_27 (a_str_27),
KEY a_str_25 (a_str_25),
KEY b_str_9 (b_str_9),
KEY a_str_23 (a_str_23),
KEY b_str_8 (b_str_8),
KEY a_str_21 (a_str_21),
KEY b_str_3 (b_str_3),
KEY b_str_30 (b_str_30),
KEY b_str_12 (b_str_12),
KEY b_str_25 (b_str_25),
KEY b_str_13 (b_str_13),
KEY a_str_38 (a_str_38),
KEY a_str_13 (a_str_13(255)),
KEY a_str_36 (a_str_36),
KEY b_str_28 (b_str_28),
KEY b_str_19 (b_str_19),
KEY b_str_11 (b_str_11),
KEY a_ref_1 (a_ref_1),
KEY b_str_20 (b_str_20),
KEY b_str_14 (b_str_14),
KEY a_ref_3 (a_ref_3),
KEY b_str_39 (b_str_39),
KEY b_str_32 (b_str_32),
KEY a_str_6 (a_str_6),
KEY b_str_5 (b_str_5),
KEY b_str_31 (b_str_31),
KEY a_ref_11 (a_ref_11)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 ROW_FORMAT=COMPACT;
SET innodb_strict_mode=ON;
BEGIN;
INSERT INTO test_tab (b_str_26, a_str_13, a_str_18) VALUES
('a', REPEAT('f',4031), REPEAT('g', 4031));
UPDATE test_tab SET a_str_13=REPEAT('h',4032), a_str_18=REPEAT('i',4032);
SELECT 'Reducing length to 4030';
UPDATE test_tab SET a_str_13=REPEAT('j',4030), a_str_18=REPEAT('k',4030);
UPDATE test_tab SET a_str_13=REPEAT('l',4031), a_str_18=REPEAT('m',4031);
ROLLBACK;
SELECT COUNT(*) FROM test_tab;
CHECK TABLE test_tab;
DROP TABLE test_tab;
SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
CREATE TEMPORARY TABLE t2(i INT)ENGINE=InnoDB;
CREATE TABLE t1(i TEXT NOT NULL) ENGINE=INNODB;
BEGIN;
INSERT t1 SET i=REPEAT('1234567890',840);
UPDATE t1 SET i='';
INSERT INTO t2 VALUES(2);
ROLLBACK;
--source include/wait_all_purged.inc
DROP TABLE t1;
DROP TABLE t2;
SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;
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