67 lines
2.1 KiB
Plaintext
67 lines
2.1 KiB
Plaintext
#
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# Bug #16963396 INNODB: USE OF LARGE EXTERNALLY-STORED FIELDS MAKES
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# CRASH RECOVERY LOSE DATA
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#
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#
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# Uncompressed Table - UPDATE Operation - Crash Test
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# Update that moves non-updated column to blob
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#
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create table t2 (f1 bigint primary key, f2 longblob, f3 longblob,
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index(f2(10), f3(10))) engine=innodb;
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insert into t2 values (1, repeat('%', 1000), repeat('+', 30));
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select f1, length(f2), length(f3) from t2;
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f1 length(f2) length(f3)
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1 1000 30
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# Connection con1:
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set debug_sync='ib_mv_nonupdated_column_offpage SIGNAL s1 WAIT_FOR go_update';
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begin;
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update t2 set f3 = repeat('[', 1000);
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# Connection default:
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set debug_sync='now WAIT_FOR s1';
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set debug_sync='now SIGNAL go_update';
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# Connection con1:
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# reap: update t2 set f3 = repeat('[', 3000);
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# Connection default:
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# Kill and restart
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select f1, length(f2), length(f3) from t2;
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f1 length(f2) length(f3)
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1 1000 30
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select f1, right(f2, 40), right(f3, 40) from t2;
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f1 right(f2, 40) right(f3, 40)
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1 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% ++++++++++++++++++++++++++++++
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check table t2;
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Table Op Msg_type Msg_text
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test.t2 check status OK
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#
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# Compressed Table - Update Operation
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# update that moves a non-updated column to BLOB
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#
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set global innodb_compression_level = 0;
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create table t3 (f1 bigint primary key, f2 longblob, f3 longblob,
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index(f2(10), f3(10))) engine=innodb row_format=compressed;
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insert into t3 values (1, repeat('%', 1000), repeat('+', 30));
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select f1, length(f2), length(f3) from t3;
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f1 length(f2) length(f3)
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1 1000 30
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# Connection con2:
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set debug_sync='ib_mv_nonupdated_column_offpage SIGNAL s1 WAIT_FOR go_upd';
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begin;
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update t3 set f3 = repeat(']', 1000) where f1 = 1;
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# Connection default:
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set debug_sync='now WAIT_FOR s1';
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set debug_sync='now SIGNAL go_upd';
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# Connection con2:
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# reap: update t3 set f3 = repeat(']', 1000) where f1 = 1;
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# Connection default:
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# Kill and restart
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select f1, length(f2), length(f3) from t3;
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f1 length(f2) length(f3)
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1 1000 30
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select f1, right(f2, 30), right(f3, 20) from t3;
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f1 right(f2, 30) right(f3, 20)
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1 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% ++++++++++++++++++++
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check table t3;
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Table Op Msg_type Msg_text
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test.t3 check status OK
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DROP TABLE t2, t3;
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