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Bug#25815 Data truncated for column TEXT

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Problem: "Data truncated" warning was incorrectly generated
when storing a Japanese character encoded in utf8
into a cp932 column.
Reason: Incorrect wrong warning condition
compared the original length of the character in bytes
(which is 3 in utf8) to the converted length of the
character in bytes (which is 2 in cp932).
Fix: use "how many bytes were scanned from input" instead
of "how many bytes were put to the column" in the condition.


mysql-test/r/ctype_cp932.result:
  Adding test case
mysql-test/t/ctype_cp932.test:
  Adding test case
sql/field.cc:
  Change warning condition from:
  "if number of bytes written to destination is less than full source length"
  to
  "if number of bytes read from source is less than full source length"
This commit is contained in:
unknown
2007-01-24 16:37:38 +04:00
parent 501bf6de18
commit fb33da5f56
3 changed files with 24 additions and 1 deletions
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12
mysql-test/r/ctype_cp932.result
View File

@ -11353,3 +11353,15 @@ a
a
a
drop table t1;
set names utf8;
create table t1 (a text) default character set cp932;
insert into t1 values (_utf8 0xE38182);
show warnings;
Level Code Message
select * from t1;
a
あ
select hex(a) from t1;
hex(a)
82A0
drop table t1;

11
mysql-test/t/ctype_cp932.test
View File

@ -413,3 +413,14 @@ select * from t1;
insert into t1 values ('abc');
select * from t1;
drop table t1;
#
# Bug#25815 Data truncated for column TEXT
#
set names utf8;
create table t1 (a text) default character set cp932;
insert into t1 values (_utf8 0xE38182);
show warnings;
select * from t1;
select hex(a) from t1;
drop table t1;