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MDEV-24848 Assertion rlen<llen failed when applying MEMSET
btr_cur_upd_rec_in_place(): Prefer WRITE to MEMSET for a single-byte operation. log_phys_t::apply(): Relax the assertion to allow a single-byte MEMSET, even though it is 1 byte longer than a WRITE record.
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CREATE TABLE t1 (pk INT PRIMARY KEY, a YEAR UNSIGNED) ENGINE=InnoDB | ||
ROW_FORMAT=REDUNDANT; | ||
INSERT INTO t1 VALUES (1,2021),(2,21),(3,0); | ||
UPDATE t1 SET a = NULL; | ||
# shutdown server | ||
# remove datadir | ||
# xtrabackup move back | ||
# restart | ||
SELECT * FROM t1; | ||
pk a | ||
1 NULL | ||
2 NULL | ||
3 NULL | ||
DROP TABLE t1; |
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--source include/have_innodb.inc | ||
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--let $targetdir=$MYSQLTEST_VARDIR/tmp/backup | ||
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CREATE TABLE t1 (pk INT PRIMARY KEY, a YEAR UNSIGNED) ENGINE=InnoDB | ||
ROW_FORMAT=REDUNDANT; | ||
INSERT INTO t1 VALUES (1,2021),(2,21),(3,0); | ||
UPDATE t1 SET a = NULL; | ||
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exec $XTRABACKUP --defaults-file=$MYSQLTEST_VARDIR/my.cnf --backup --target-dir=$targetdir; | ||
exec $XTRABACKUP --prepare --verbose --target-dir=$targetdir; | ||
--source include/restart_and_restore.inc | ||
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rmdir $targetdir; | ||
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SELECT * FROM t1; | ||
DROP TABLE t1; |
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