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|
--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(1,2);
BEGIN;
INSERT INTO t2 VALUES(2,1);
ALTER TABLE t2 ADD COLUMN (c3 TEXT NOT NULL DEFAULT 'De finibus bonorum');
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 (64,42,'De finibus bonorum'), (347,33101,' et malorum');
connect ddl, localhost, root;
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;
DELETE FROM t1;
--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
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;
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;
}
print ")\n";
}
close(FILE) || die "Unable to close $file\n";
}
EOF
UNLOCK TABLES;
DELETE FROM t2;
--source include/wait_all_purged.inc
SHOW CREATE TABLE t1;
SHOW CREATE TABLE t2;
DROP TABLE t1,t2;
--remove_files_wildcard $MYSQLD_DATADIR/test #sql*.frm
--list_files $MYSQLD_DATADIR/test
SET GLOBAL innodb_purge_rseg_truncate_frequency=@saved_frequency;
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