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Report truncation of spaces when inserting into a BINARY or VARBINARY

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field. (Bug #14299)


mysql-test/r/type_binary.result:
  Add results
mysql-test/t/type_binary.test:
  Add new regression test
sql/field.cc:
  Always report truncation of binary and varbinary strings, even if it was
  just spaces. (Plus some minor style/comment cleanups.)
This commit is contained in:
unknown
2005-11-15 19:21:05 -08:00
parent db813bde04
commit c3ecc18f0c
3 changed files with 80 additions and 23 deletions
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22
mysql-test/r/type_binary.result
View File

@ -111,3 +111,25 @@ select count(distinct s1) from t1;
count(distinct s1)
3
drop table t1;
create table t1 (b binary(2), vb varbinary(2));
insert into t1 values(0x4120, 0x4120);
insert into t1 values(0x412020, 0x412020);
Warnings:
Warning 1265 Data truncated for column 'b' at row 1
Warning 1265 Data truncated for column 'vb' at row 1
drop table t1;
create table t1 (c char(2), vc varchar(2));
insert into t1 values(0x4120, 0x4120);
insert into t1 values(0x412020, 0x412020);
Warnings:
Note 1265 Data truncated for column 'vc' at row 1
drop table t1;
set @old_sql_mode= @@sql_mode, sql_mode= 'traditional';
create table t1 (b binary(2), vb varbinary(2));
insert into t1 values(0x4120, 0x4120);
insert into t1 values(0x412020, NULL);
ERROR 22001: Data too long for column 'b' at row 1
insert into t1 values(NULL, 0x412020);
ERROR 22001: Data too long for column 'vb' at row 1
drop table t1;
set @@sql_mode= @old_sql_mode;

24
mysql-test/t/type_binary.test
View File

@ -65,3 +65,27 @@ select hex(s1) from t1 where s1=0x0120;
select hex(s1) from t1 where s1=0x0100;
select count(distinct s1) from t1;
drop table t1;
#
# Bug #14299: BINARY space truncation should cause warning or error
#
create table t1 (b binary(2), vb varbinary(2));
insert into t1 values(0x4120, 0x4120);
insert into t1 values(0x412020, 0x412020);
drop table t1;
create table t1 (c char(2), vc varchar(2));
insert into t1 values(0x4120, 0x4120);
insert into t1 values(0x412020, 0x412020);
drop table t1;
set @old_sql_mode= @@sql_mode, sql_mode= 'traditional';
create table t1 (b binary(2), vb varbinary(2));
insert into t1 values(0x4120, 0x4120);
--error ER_DATA_TOO_LONG
insert into t1 values(0x412020, NULL);
--error ER_DATA_TOO_LONG
insert into t1 values(NULL, 0x412020);
drop table t1;
set @@sql_mode= @old_sql_mode;
# End of 5.0 tests

23
sql/field.cc
View File

@ -5870,23 +5870,30 @@ int Field_string::store(const char *from,uint length,CHARSET_INFO *cs)
error= 2;
}
/*
Make sure we don't break a multibyte sequence
as well as don't copy a malformed data.
*/
/* Make sure we don't break a multibyte sequence or copy malformed data. */
copy_length= field_charset->cset->well_formed_len(field_charset,
from,from+length,
field_length/
field_charset->mbmaxlen,
&well_formed_error);
memcpy(ptr,from,copy_length);
if (copy_length < field_length) // Append spaces if shorter
/* Append spaces if the string was shorter than the field. */
if (copy_length < field_length)
field_charset->cset->fill(field_charset,ptr+copy_length,
field_length-copy_length,
field_charset->pad_char);
/*
Check if we lost any important data (anything in a binary string,
or any non-space in others).
*/
if ((copy_length < length) && table->in_use->count_cuted_fields)
{ // Check if we loosed some info
{
if (binary())
error= 2;
else
{
const char *end=from+length;
from+= copy_length;
from+= field_charset->cset->scan(field_charset, from, end,
@ -5894,6 +5901,7 @@ int Field_string::store(const char *from,uint length,CHARSET_INFO *cs)
if (from != end)
error= 2;
}
}
if (error)
{
if (table->in_use->abort_on_warning)
@ -6267,6 +6275,8 @@ int Field_varstring::store(const char *from,uint length,CHARSET_INFO *cs)
// Check if we lost something other than just trailing spaces
if ((copy_length < length) && table->in_use->count_cuted_fields &&
!error_code)
{
if (!binary())
{
const char *end= from + length;
from+= copy_length;
@ -6274,6 +6284,7 @@ int Field_varstring::store(const char *from,uint length,CHARSET_INFO *cs)
/* If we lost only spaces then produce a NOTE, not a WARNING */
if (from == end)
level= MYSQL_ERROR::WARN_LEVEL_NOTE;
}
error_code= WARN_DATA_TRUNCATED;
}
if (error_code)