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MDEV-21539 Assertion ...prtype... failed in row_log_table_apply_convert_mrec

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This bug is a cousin of MDEV-18719 and MDEV-20190, which failed to
relax a debug assertion in one more code path.

row_log_table_apply_convert_mrec(): Use dict_col_t::same_format()
and ignore all format-agnostic flags in the assertions.
This commit is contained in:
Marko Mäkelä
2020-01-21 18:47:56 +02:00
parent 5cd21ac202
commit 1084fa77ab
3 changed files with 54 additions and 5 deletions
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24
mysql-test/suite/innodb/r/alter_not_null_debug.result
View File

@ -74,5 +74,27 @@ c1 c2 c3
1 2 3
2 0 4
DROP TABLE t1;
disconnect con1;
SET DEBUG_SYNC='RESET';
#
# MDEV-21539 Assertion ...prtype... in row_log_table_apply_convert_mrec
#
CREATE TABLE t1 (f VARCHAR(8) CHARACTER SET latin1 COLLATE latin1_swedish_ci)
ENGINE=InnoDB;
connection con1;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL scanned WAIT_FOR insert_done';
ALTER TABLE t1 MODIFY f VARCHAR(256) COLLATE latin1_german2_ci NOT NULL;
# session default
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR scanned';
INSERT INTO t1 VALUES('one');
SET DEBUG_SYNC = 'now SIGNAL insert_done';
connection con1;
disconnect con1;
connection default;
SET DEBUG_SYNC=RESET;
ALTER TABLE t1 CHANGE f eins VARCHAR(257) COLLATE latin1_german1_ci NOT NULL,
ALGORITHM=INSTANT;
SELECT * FROM t1;
eins
one
DROP TABLE t1;

29
mysql-test/suite/innodb/t/alter_not_null_debug.test
View File

@ -68,5 +68,32 @@ reap;
--disable_info
SELECT * FROM t1;
DROP TABLE t1;
disconnect con1;
SET DEBUG_SYNC='RESET';
--echo #
--echo # MDEV-21539 Assertion ...prtype... in row_log_table_apply_convert_mrec
--echo #
CREATE TABLE t1 (f VARCHAR(8) CHARACTER SET latin1 COLLATE latin1_swedish_ci)
ENGINE=InnoDB;
connection con1;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL scanned WAIT_FOR insert_done';
send ALTER TABLE t1 MODIFY f VARCHAR(256) COLLATE latin1_german2_ci NOT NULL;
--echo # session default
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR scanned';
INSERT INTO t1 VALUES('one');
SET DEBUG_SYNC = 'now SIGNAL insert_done';
connection con1;
reap;
disconnect con1;
connection default;
SET DEBUG_SYNC=RESET;
ALTER TABLE t1 CHANGE f eins VARCHAR(257) COLLATE latin1_german1_ci NOT NULL,
ALGORITHM=INSTANT;
SELECT * FROM t1;
DROP TABLE t1;

6
storage/innobase/row/row0log.cc
View File

@ -1648,12 +1648,12 @@ blob_done:
/* See if any columns were changed to NULL or NOT NULL. */
const dict_col_t* new_col
= dict_table_get_nth_col(log->table, col_no);
ut_ad(new_col->mtype == col->mtype);
ut_ad(new_col->same_format(*col));
/* Assert that prtype matches except for nullability. */
ut_ad(!((new_col->prtype ^ col->prtype) & ~DATA_NOT_NULL));
ut_ad(!((new_col->prtype ^ dfield_get_type(dfield)->prtype)
& ~DATA_NOT_NULL));
& ~(DATA_NOT_NULL | DATA_VERSIONED
| CHAR_COLL_MASK << 16 | DATA_LONG_TRUE_VARCHAR)));
if (new_col->prtype == col->prtype) {
continue;