mariadb/mysql-test/suite/innodb/t/instant_alter_crash.test

--source include/have_innodb.inc
# The embedded server tests do not support restarting.
--source include/not_embedded.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc

FLUSH TABLES;

let INNODB_PAGE_SIZE=`select @@innodb_page_size`;
let MYSQLD_DATADIR=`select @@datadir`;

--echo #
--echo # MDEV-11369: Instant ADD COLUMN for InnoDB
--echo #

CREATE TABLE t1(id INT PRIMARY KEY, c2 INT UNIQUE)
ENGINE=InnoDB ROW_FORMAT=REDUNDANT;
CREATE TABLE t2 LIKE t1;
INSERT INTO t1 VALUES(0,2);
INSERT INTO t2 VALUES(2,1);
ALTER TABLE t2 ADD COLUMN (c3 TEXT NOT NULL DEFAULT 'De finibus bonorum');
BEGIN;
INSERT INTO t2 VALUES(3,4,'accusantium doloremque laudantium');

connect ddl, localhost, root;
SET DEBUG_SYNC='innodb_alter_inplace_before_commit SIGNAL ddl WAIT_FOR ever';
--send
ALTER TABLE t1 ADD COLUMN (c3 TEXT NOT NULL DEFAULT ' et malorum');

connection default;
SET DEBUG_SYNC='now WAIT_FOR ddl';
SET GLOBAL innodb_flush_log_at_trx_commit=1;
COMMIT;

--source include/kill_mysqld.inc
disconnect ddl;
--source include/start_mysqld.inc

SET GLOBAL innodb_purge_rseg_truncate_frequency=1;
SELECT * FROM t1;
SELECT * FROM t2;
BEGIN;
DELETE FROM t1;
ROLLBACK;
--source include/wait_all_purged.inc

INSERT INTO t2 VALUES
(16,1551,'Omnium enim rerum'),(128,1571,' principia parva sunt');

connect ddl, localhost, root;
SET DEBUG_SYNC='innodb_alter_inplace_before_commit SIGNAL ddl WAIT_FOR ever';
--send
ALTER TABLE t2 DROP COLUMN c3, ADD COLUMN c5 TEXT DEFAULT 'naturam abhorrere';

connection default;
SET DEBUG_SYNC='now WAIT_FOR ddl';
SET GLOBAL innodb_flush_log_at_trx_commit=1;
SET debug_dbug='+d,dict_sys_mutex_avoid';
UPDATE t1 SET c2=c2+1;

--source include/kill_mysqld.inc
disconnect ddl;
--source include/start_mysqld.inc

SET @saved_frequency= @@GLOBAL.innodb_purge_rseg_truncate_frequency;
SET GLOBAL innodb_purge_rseg_truncate_frequency=1;

SELECT * FROM t1;
SELECT * FROM t2;
BEGIN;
INSERT INTO t1 SET id=1;
DELETE FROM t2;
ROLLBACK;
--source include/wait_all_purged.inc

INSERT INTO t2 VALUES (64,42,'De finibus bonorum'), (347,33101,' et malorum');

connect ddl, localhost, root;
ALTER TABLE t2 DROP COLUMN c3;
SET DEBUG_SYNC='innodb_alter_inplace_before_commit SIGNAL ddl WAIT_FOR ever';
--send
ALTER TABLE t2 ADD COLUMN (c4 TEXT NOT NULL DEFAULT ' et malorum');

connection default;
SET DEBUG_SYNC='now WAIT_FOR ddl';
SET GLOBAL innodb_flush_log_at_trx_commit=1;
SET debug_dbug='+d,dict_sys_mutex_avoid';
DELETE FROM t1;

--source include/kill_mysqld.inc
disconnect ddl;
--source include/start_mysqld.inc

SET GLOBAL innodb_purge_rseg_truncate_frequency=1;

let SEARCH_FILE= $MYSQLTEST_VARDIR/log/mysqld.1.err;
let SEARCH_PATTERN= \[Note\] InnoDB: Rolled back recovered transaction ;
-- source include/search_pattern_in_file.inc

SELECT * FROM t1;
SELECT * FROM t2;
BEGIN;
INSERT INTO t1 SET id=1;
DELETE FROM t2;
ROLLBACK;
--source include/wait_all_purged.inc

FLUSH TABLE t1,t2 FOR EXPORT;

# At this point, t1 is empty and t2 contains a 'default row'.

# The following is based on innodb.table_flags and innodb.dml_purge:
--perl
use strict;
my $ps= $ENV{INNODB_PAGE_SIZE};
foreach my $table ('t1','t2') {
my $file= "$ENV{MYSQLD_DATADIR}/test/$table.ibd";
open(FILE, "<", $file) || die "Unable to open $file\n";
my $page;
sysseek(FILE, 3*$ps, 0) || die "Unable to seek $file";
die "Unable to read $file" unless sysread(FILE, $page, $ps) == $ps;
print "$table clustered index root page";
print "(type ", unpack("n", substr($page,24,2)), "):\n";
print "N_RECS=", unpack("n", substr($page,38+16,2));
print "; LEVEL=", unpack("n", substr($page,38+26,2)), "\n";
my @fields=("id","DB_TRX_ID","DB_ROLL_PTR", "c2","c3","c4");
for (my $offset= 0x65; $offset;
     $offset= unpack("n", substr($page,$offset-2,2)))
{
    print "header=0x", unpack("H*",substr($page,$offset-6,6)), " (";
    my $n_fields= unpack("n", substr($page,$offset-4,2)) >> 1 & 0x3ff;
    my $start= 0;
    my $name;
    if (unpack("C", substr($page,$offset-3,1)) & 1) {
	for (my $i= 0; $i < $n_fields; $i++) {
	    my $end= unpack("C", substr($page, $offset-7-$i, 1));
	    print ",\n " if $i;
	    print "$fields[$i]=";
	    if ($end & 0x80) {
		print "NULL(", ($end & 0x7f) - $start, " bytes)"
	    } else {
		print "0x", unpack("H*", substr($page,$offset+$start,$end-$start))
	    }
	    $start= $end & 0x7f;
	}
    } else {
	for (my $i= 0; $i < $n_fields; $i++) {
	    my $end= unpack("n", substr($page, $offset-8-2*$i, 2));
	    print ",\n " if $i;
	    if ($i > 2 && !(~unpack("C",substr($page,$offset-6,1)) & 0x30)) {
		if ($i == 3) {
		    print "BLOB=";
		    $start += 8; # skip the space_id,page_number
		} else {
		    print "$fields[$i - 1]=";
		}
	    } else {
		print "$fields[$i]=";
	    }
	    if ($end & 0x8000) {
		print "NULL(", ($end & 0x7fff) - $start, " bytes)"
	    } else {
		print "0x", unpack("H*", substr($page,$offset+$start,($end-$start) & 0x3fff))
	    }
	    $start= $end & 0x3fff;
	}
    }
    print ")\n";
}
close(FILE) || die "Unable to close $file\n";
}
EOF

UNLOCK TABLES;

DELETE FROM t2;
--source include/wait_all_purged.inc

--echo #
--echo # MDEV-24323 Crash on recovery after kill during instant ADD COLUMN
--echo #
connect ddl, localhost, root;
CREATE TABLE t3(id INT PRIMARY KEY, c2 INT, v2 INT AS(c2) VIRTUAL, UNIQUE(v2))
ENGINE=InnoDB;
INSERT INTO t3 SET id=1,c2=1;

SET DEBUG_SYNC='innodb_alter_inplace_before_commit SIGNAL ddl WAIT_FOR ever';
--send
ALTER TABLE t3 ADD COLUMN c3 TEXT NOT NULL DEFAULT 'sic transit gloria mundi';

connection default;
SET DEBUG_SYNC='now WAIT_FOR ddl';
SET GLOBAL innodb_flush_log_at_trx_commit=1;
SET debug_dbug='+d,dict_sys_mutex_avoid';
INSERT INTO t1 VALUES(0,0);

--source include/kill_mysqld.inc
disconnect ddl;
--source include/start_mysqld.inc

SHOW CREATE TABLE t1;
SHOW CREATE TABLE t2;
SHOW CREATE TABLE t3;
DROP TABLE t1,t2,t3;

--list_files $MYSQLD_DATADIR/test