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Bug#32705 - myisam corruption: Key in wrong position

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at page 1024 with ucs2_bin

Inserting strings with a common prefix into a table with
characterset UCS2 corrupted the table.

An efficient search method was used, which compares end space
with ASCII blank. This doesn't work for character sets like UCS2,
which do not encode blank like ASCII does.

Use the less efficient search method _mi_seq_search()
for charsets with mbminlen > 1.
This commit is contained in:
istruewing@stella.local 2007-12-18 12:29:50 +01:00
commit cd1b00e8bb
3 changed files with 33 additions and 1 deletions
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10
mysql-test/r/myisam.result
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@ -1839,4 +1839,14 @@ CHECK TABLE t1 EXTENDED;
Table Op Msg_type Msg_text
test.t1 check status OK
DROP TABLE t1;
CREATE TABLE t1 (
c1 CHAR(255) CHARACTER SET UCS2 COLLATE UCS2_BIN NOT NULL,
KEY(c1)
) ENGINE=MyISAM;
INSERT INTO t1 VALUES ('marshall\'s');
INSERT INTO t1 VALUES ('marsh');
CHECK TABLE t1 EXTENDED;
Table Op Msg_type Msg_text
test.t1 check status OK
DROP TABLE t1;
End of 5.0 tests