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Fix for bug#13934 Silent truncation of table comments

Table comment: issue a warning(error in traditional mode) if length of comment > 60 symbols
Column comment: issue a warning(error in traditional mode) if length of comment > 255 symbols
Table 'comment' is changed from char* to LEX_STRING
This commit is contained in:
gluh@eagle.intranet.mysql.r18.ru
2006-06-29 18:39:34 +05:00
parent f9214221fc
commit a230166f28
9 changed files with 150 additions and 15 deletions

View File

@@ -1298,3 +1298,49 @@ t2 CREATE TABLE `t2` (
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t2,t1;
set @@sql_mode= @org_mode;
set @@sql_mode='traditional';
create table t1 (i int)
comment '123456789*123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*123456789*';
ERROR HY000: Too long comment for table 't1'
create table t1 (
i int comment
'123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*');
ERROR HY000: Too long comment for field 'i'
set @@sql_mode= @org_mode;
create table t1
(i int comment
'123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*');
Warnings:
Warning 1105 Unknown error
select column_name, column_comment from information_schema.columns where
table_schema = 'test' and table_name = 't1';
column_name column_comment
i 123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
drop table t1;
set names utf8;
create table t1 (i int)
comment '123456789*123456789*123456789*123456789*123456789*123456789*';
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(11) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT='123456789*123456789*123456789*123456789*123456789*123456789*'
drop table t1;

View File

@@ -1155,3 +1155,42 @@ create table t2 select date from t1;
show create table t2;
drop table t2,t1;
set @@sql_mode= @org_mode;
#
# Bug #13934 Silent truncation of table comments
#
set @@sql_mode='traditional';
--error 1105
create table t1 (i int)
comment '123456789*123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*123456789*';
--error 1105
create table t1 (
i int comment
'123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*');
set @@sql_mode= @org_mode;
create table t1
(i int comment
'123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*
123456789*123456789*123456789*123456789*');
select column_name, column_comment from information_schema.columns where
table_schema = 'test' and table_name = 't1';
drop table t1;
set names utf8;
create table t1 (i int)
comment '123456789*123456789*123456789*123456789*123456789*123456789*';
show create table t1;
drop table t1;