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cb927e2f45
When we insert a record into MYISAM table which is almost 'full', we first write record data in the free space inside a file, and then check if we have enough space after the end of the file. So if we don't have the space, table will left corrupted. Similar error also happens when we updata MYISAM tables. Fixed by modifying write_dynamic_record and update_dynamic_record functions to check for free space before writing parts of a record BitKeeper/etc/ignore: Added libmysql_r/client_settings.h libmysqld/ha_blackhole.cc to the ignore list myisam/mi_dynrec.c: Bug #31305 myisam tables crash when they are near capacity. now we check space left in table in write_dynamic_record and update_dynamic_record functions. If we don't have enough room for the new (updated) record, return with the error. mysql-test/r/almost_full.result: New BitKeeper file ``mysql-test/r/almost_full.result'' mysql-test/t/almost_full.test: New BitKeeper file ``mysql-test/t/almost_full.test''
29 lines
1.1 KiB
Text
29 lines
1.1 KiB
Text
drop table if exists t1;
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set global myisam_data_pointer_size=2;
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CREATE TABLE t1 (a int auto_increment primary key not null, b longtext) ENGINE=MyISAM;
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DELETE FROM t1 WHERE a=1 or a=5;
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INSERT INTO t1 SET b=repeat('a',600);
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ERROR HY000: The table 't1' is full
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CHECK TABLE t1 EXTENDED;
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Table Op Msg_type Msg_text
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test.t1 check warning Datafile is almost full, 65448 of 65534 used
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test.t1 check status OK
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UPDATE t1 SET b=repeat('a', 800) where a=10;
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ERROR HY000: The table 't1' is full
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CHECK TABLE t1 EXTENDED;
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Table Op Msg_type Msg_text
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test.t1 check warning Datafile is almost full, 65448 of 65534 used
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test.t1 check status OK
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INSERT INTO t1 SET b=repeat('a',400);
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CHECK TABLE t1 EXTENDED;
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Table Op Msg_type Msg_text
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test.t1 check warning Datafile is almost full, 65448 of 65534 used
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test.t1 check status OK
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DELETE FROM t1 WHERE a=2 or a=6;
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UPDATE t1 SET b=repeat('a', 600) where a=11;
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CHECK TABLE t1 EXTENDED;
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Table Op Msg_type Msg_text
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test.t1 check warning Datafile is almost full, 65448 of 65534 used
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test.t1 check status OK
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drop table t1;
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set global myisam_data_pointer_size=default;
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