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--source include/not_crashrep.inc
--source include/have_debug.inc
--echo #
--echo # Bug #16963396 INNODB: USE OF LARGE EXTERNALLY-STORED FIELDS MAKES
--echo # CRASH RECOVERY LOSE DATA
--echo #
# ..........................................................................
--echo #
--echo # Uncompressed Table - UPDATE Operation - Crash Test
--echo # Update that moves non-updated column to blob
--echo #
create table t2 (f1 bigint primary key, f2 longblob, f3 longblob,
index(f2(10), f3(10))) engine=innodb;
insert into t2 values (1, repeat('%', 1000), repeat('+', 30));
select f1, length(f2), length(f3) from t2;
--echo # Connection con1:
connect (con1,localhost,root,,);
set debug_sync='ib_mv_nonupdated_column_offpage SIGNAL s1 WAIT_FOR go_update';
# The BLOB update will fail, and should disappear. However no data committed
# up to this point should be lost.
begin;
--send
update t2 set f3 = repeat('[', 1000);
--echo # Connection default:
connection default;
set debug_sync='now WAIT_FOR s1';
set debug_sync='now SIGNAL go_update';
--echo # Connection con1:
connection con1;
--echo # reap: update t2 set f3 = repeat('[', 3000);
--reap
--echo # Connection default:
connection default;
--source include/kill_and_restart_mysqld.inc
select f1, length(f2), length(f3) from t2;
select f1, right(f2, 40), right(f3, 40) from t2;
check table t2;
# ..........................................................................
--echo #
--echo # Compressed Table - Update Operation
--echo # update that moves a non-updated column to BLOB
--echo #
connection default;
set global innodb_compression_level = 0;
create table t3 (f1 bigint primary key, f2 longblob, f3 longblob,
index(f2(10), f3(10))) engine=innodb row_format=compressed;
insert into t3 values (1, repeat('%', 1000), repeat('+', 30));
select f1, length(f2), length(f3) from t3;
--echo # Connection con2:
connect (con2,localhost,root,,);
set debug_sync='ib_mv_nonupdated_column_offpage SIGNAL s1 WAIT_FOR go_upd';
# The BLOB update will fail, and should disappear. However no data committed
# up to this point should be lost.
begin;
--send
update t3 set f3 = repeat(']', 1000) where f1 = 1;
--echo # Connection default:
connection default;
set debug_sync='now WAIT_FOR s1';
set debug_sync='now SIGNAL go_upd';
--echo # Connection con2:
connection con2;
--echo # reap: update t3 set f3 = repeat(']', 1000) where f1 = 1;
--reap
--echo # Connection default:
connection default;
--source include/kill_and_restart_mysqld.inc
select f1, length(f2), length(f3) from t3;
select f1, right(f2, 30), right(f3, 20) from t3;
check table t3;
# ..........................................................................
# Clean up.
DROP TABLE t2, t3;
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