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Bug#27747 database metadata doesn't return sufficient column default info

Browse source 
added get_field_default_value() function which obtains default value from the field
(used in store_create_info() & get_schema_column_record() functions)


mysql-test/r/alter_table.result:
  result fix
mysql-test/r/create.result:
  result fix
mysql-test/r/ctype_collate.result:
  result fix
mysql-test/r/ctype_recoding.result:
  result fix
mysql-test/r/default.result:
  result fix
mysql-test/r/gis.result:
  result fix
mysql-test/r/grant.result:
  result fix
mysql-test/r/information_schema.result:
  result fix
mysql-test/r/key.result:
  result fix
mysql-test/r/mysql.result:
  result fix
mysql-test/r/ps_1general.result:
  result fix
mysql-test/r/show_check.result:
  result fix
mysql-test/r/sp.result:
  result fix
mysql-test/r/type_enum.result:
  result fix
mysql-test/r/type_ranges.result:
  result fix
mysql-test/t/information_schema.test:
  test case
This commit is contained in:
unknown 2007-09-20 13:54:46 +05:00
parent ffdc5b9302
commit fac190a28b
17 changed files with 162 additions and 114 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
mysql-test/r/alter_table.result
View file

@ -54,7 +54,7 @@ SHOW FULL COLUMNS FROM t1;
Field Type Collation Null Key Default Extra Privileges Comment
GROUP_ID int(10) unsigned NULL NO PRI 0 #
LANG_ID smallint(5) unsigned NULL NO PRI 0 #
NAME char(80) latin1_swedish_ci NO MUL #
NAME char(80) latin1_swedish_ci NO MUL NULL #
DROP TABLE t1;
create table t1 (n int);
insert into t1 values(9),(3),(12),(10);

2
mysql-test/r/create.result
View file

@ -430,7 +430,7 @@ d date YES NULL
e varchar(1) NO
f datetime YES NULL
g time YES NULL
h longblob NO
h longblob NO NULL
dd time YES NULL
select * from t2;
a b c d e f g h dd

2
mysql-test/r/ctype_collate.result
View file

@ -488,7 +488,7 @@ t1 CREATE TABLE `t1` (
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SHOW FIELDS FROM t1;
Field Type Null Key Default Extra
latin1_f char(32) NO
latin1_f char(32) NO NULL
ALTER TABLE t1 CHANGE latin1_f
latin1_f CHAR(32) CHARACTER SET latin1 COLLATE latin1_bin;
SHOW CREATE TABLE t1;

6
mysql-test/r/ctype_recoding.result
View file

@ -54,7 +54,7 @@ Table Create Table
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT='ËÏÍÍÅÎÔÁÒÉÊ ÔÁÂÌÉÃÙ'
SHOW FIELDS FROM ÔÁÂÌÉÃÁ;
Field Type Null Key Default Extra
ÐÏÌÅ char(32) NO
ÐÏÌÅ char(32) NO NULL
SET CHARACTER SET cp1251;
SHOW TABLES;
Tables_in_test
@ -66,7 +66,7 @@ Table Create Table
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT='êîììåíòàðèé òàáëèöû'
SHOW FIELDS FROM òàáëèöà;
Field Type Null Key Default Extra
ïîëå char(32) NO
ïîëå char(32) NO NULL
SET CHARACTER SET utf8;
SHOW TABLES;
Tables_in_test
@ -78,7 +78,7 @@ Table Create Table
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT='комментарий таблицы'
SHOW FIELDS FROM таблица;
Field Type Null Key Default Extra
поле char(32) NO
поле char(32) NO NULL
SET CHARACTER SET koi8r;
DROP TABLE ÔÁÂÌÉÃÁ;
SET CHARACTER SET default;

2
mysql-test/r/default.result
View file

@ -115,7 +115,7 @@ Warning 1364 Field 'd' doesn't have a default value
desc bug20691;
Field Type Null Key Default Extra
i int(11) YES NULL
d datetime NO
d datetime NO NULL
dn datetime NO 0000-00-00 00:00:00
insert into bug20691 values (3, DEFAULT, DEFAULT), (3, '1975-07-10 07:10:03', '1978-01-13 14:08:51'), (3, DEFAULT, DEFAULT);
Warnings:

18
mysql-test/r/gis.result
View file

@ -9,35 +9,35 @@ CREATE TABLE gis_geometrycollection (fid INTEGER NOT NULL PRIMARY KEY, g GEOMET
CREATE TABLE gis_geometry (fid INTEGER NOT NULL PRIMARY KEY, g GEOMETRY);
SHOW FIELDS FROM gis_point;
Field Type Null Key Default Extra
fid int(11) NO PRI
fid int(11) NO PRI NULL
g point YES NULL
SHOW FIELDS FROM gis_line;
Field Type Null Key Default Extra
fid int(11) NO PRI
fid int(11) NO PRI NULL
g linestring YES NULL
SHOW FIELDS FROM gis_polygon;
Field Type Null Key Default Extra
fid int(11) NO PRI
fid int(11) NO PRI NULL
g polygon YES NULL
SHOW FIELDS FROM gis_multi_point;
Field Type Null Key Default Extra
fid int(11) NO PRI
fid int(11) NO PRI NULL
g multipoint YES NULL
SHOW FIELDS FROM gis_multi_line;
Field Type Null Key Default Extra
fid int(11) NO PRI
fid int(11) NO PRI NULL
g multilinestring YES NULL
SHOW FIELDS FROM gis_multi_polygon;
Field Type Null Key Default Extra
fid int(11) NO PRI
fid int(11) NO PRI NULL
g multipolygon YES NULL
SHOW FIELDS FROM gis_geometrycollection;
Field Type Null Key Default Extra
fid int(11) NO PRI
fid int(11) NO PRI NULL
g geometrycollection YES NULL
SHOW FIELDS FROM gis_geometry;
Field Type Null Key Default Extra
fid int(11) NO PRI
fid int(11) NO PRI NULL
g geometry YES NULL
INSERT INTO gis_point VALUES
(101, PointFromText('POINT(10 10)')),
@ -430,7 +430,7 @@ mln multilinestring YES NULL
mpg multipolygon YES NULL
gc geometrycollection YES NULL
gm geometry YES NULL
fid int(11) NO
fid int(11) NO NULL
DROP TABLE t1;
SELECT AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)'))));
AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)'))))

2
mysql-test/r/grant.result
View file

@ -526,7 +526,7 @@ Db char(64) NO PRI
User char(16) NO PRI
Table_name char(64) NO PRI
Grantor char(77) NO MUL
Timestamp timestamp NO CURRENT_TIMESTAMP
Timestamp timestamp NO 0000-00-00 00:00:00
Table_priv set('Select','Insert','Update','Delete','Create','Drop','Grant','References','Index','Alter','Create View','Show view') NO
Column_priv set('Select','Insert','Update','References') NO
use test;

33
mysql-test/r/information_schema.result
View file

@ -989,7 +989,7 @@ b NULL
use test;
show columns from t1;
Field Type Null Key Default Extra
a int(11) NO
a int(11) NO NULL
b int(11) YES NULL
drop table t1;
CREATE TABLE t1 (a int);
@ -1354,4 +1354,35 @@ where event_object_table='t1';
trigger_name
drop user mysqltest_1@localhost;
drop database mysqltest;
create table t1 (
f1 varchar(50),
f2 varchar(50) not null,
f3 varchar(50) default '',
f4 varchar(50) default NULL,
f5 bigint not null,
f6 bigint not null default 10,
f7 datetime not null,
f8 datetime default '2006-01-01'
);
select column_default from information_schema.columns where table_name= 't1';
column_default
NULL
NULL
NULL
NULL
10
NULL
2006-01-01 00:00:00
show columns from t1;
Field Type Null Key Default Extra
f1 varchar(50) YES NULL
f2 varchar(50) NO NULL
f3 varchar(50) YES
f4 varchar(50) YES NULL
f5 bigint(20) NO NULL
f6 bigint(20) NO 10
f7 datetime NO NULL
f8 datetime YES 2006-01-01 00:00:00
drop table t1;
End of 5.0 tests.

22
mysql-test/r/key.result
View file

@ -336,8 +336,8 @@ UNIQUE i1idx (i1),
UNIQUE i2idx (i2));
desc t1;
Field Type Null Key Default Extra
i1 int(11) NO PRI
i2 int(11) NO UNI
i1 int(11) NO PRI NULL
i2 int(11) NO UNI NULL
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
@ -392,27 +392,27 @@ drop table t1;
create table t1 (a int not null primary key, b varchar(20) not null unique);
desc t1;
Field Type Null Key Default Extra
a int(11) NO PRI
b varchar(20) NO UNI
a int(11) NO PRI NULL
b varchar(20) NO UNI NULL
drop table t1;
create table t1 (a int not null primary key, b int not null unique);
desc t1;
Field Type Null Key Default Extra
a int(11) NO PRI
b int(11) NO UNI
a int(11) NO PRI NULL
b int(11) NO UNI NULL
drop table t1;
create table t1 (a int not null primary key, b varchar(20) not null, unique (b(10)));
desc t1;
Field Type Null Key Default Extra
a int(11) NO PRI
b varchar(20) NO UNI
a int(11) NO PRI NULL
b varchar(20) NO UNI NULL
drop table t1;
create table t1 (a int not null primary key, b varchar(20) not null, c varchar(20) not null, unique(b(10),c(10)));
desc t1;
Field Type Null Key Default Extra
a int(11) NO PRI
b varchar(20) NO MUL
c varchar(20) NO
a int(11) NO PRI NULL
b varchar(20) NO MUL NULL
c varchar(20) NO NULL
drop table t1;
CREATE TABLE t1 (
a INTEGER auto_increment PRIMARY KEY,

4
mysql-test/r/mysql.result
View file

@ -91,7 +91,7 @@ i j k
NULL 1 NULL
Field Type Null Key Default Extra
i int(11) YES NULL
j int(11) NO
j int(11) NO NULL
k int(11) YES NULL
+------+---+------+
| i | j | k |
@ -102,7 +102,7 @@ k int(11) YES NULL
| Field | Type | Null | Key | Default | Extra |
+-------+---------+------+-----+---------+-------+
| i | int(11) | YES | | NULL | |
| j | int(11) | NO | | | |
| j | int(11) | NO | | NULL | |
| k | int(11) | YES | | NULL | |
+-------+---------+------+-----+---------+-------+
i s1

6
mysql-test/r/ps_1general.result
View file

@ -269,7 +269,7 @@ prepare stmt4 from ' show columns from t2 where field in (select ?) ';
SET @arg00="a";
execute stmt4 using @arg00;
Field Type Null Key Default Extra
a int(11) NO PRI
a int(11) NO PRI NULL
SET @arg00="b";
execute stmt4 using @arg00;
Field Type Null Key Default Extra
@ -280,7 +280,7 @@ Field Type Null Key Default Extra
prepare stmt4 from ' show columns from t2 from test like ''a%'' ';
execute stmt4;
Field Type Null Key Default Extra
a int(11) NO PRI
a int(11) NO PRI NULL
create index t2_idx on t2(b);
prepare stmt4 from ' show index from t2 from test ';
execute stmt4;
@ -409,7 +409,7 @@ drop database mysqltest ;
prepare stmt3 from ' describe t2 ';
execute stmt3;
Field Type Null Key Default Extra
a int(11) NO PRI
a int(11) NO PRI NULL
b char(10) YES MUL NULL
drop table t2 ;
execute stmt3;

4
mysql-test/r/show_check.result
View file

@ -228,7 +228,7 @@ show full columns from t1;
Field Type Collation Null Key Default Extra Privileges Comment
test_set set('val1','val2','val3') latin1_swedish_ci NO select,insert,update,references
name char(20) latin1_swedish_ci YES O'Brien select,insert,update,references O'Brien as default
c int(11) NULL NO select,insert,update,references int column
c int(11) NULL NO NULL select,insert,update,references int column
c-b int(11) NULL YES NULL select,insert,update,references name with a minus
space 2 int(11) NULL YES NULL select,insert,update,references name with a space
drop table t1;
@ -901,7 +901,7 @@ def COLUMNS COLUMN_KEY Key 253 9 3 N 1 0 33
def COLUMNS COLUMN_DEFAULT Default 252 589815 0 Y 16 0 33
def COLUMNS EXTRA Extra 253 60 0 N 1 0 33
Field Type Null Key Default Extra
c int(11) NO PRI
c int(11) NO PRI NULL
----------------------------------------------------------------
SHOW TRIGGERS LIKE 't1';
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr

4
mysql-test/r/sp.result
View file

@ -2468,7 +2468,7 @@ Database (foo)
Level Code Message
Field Type Null Key Default Extra
id char(16) NO
data int(11) NO
data int(11) NO NULL
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
Database Table In_use Name_locked
Privilege Context Comment
@ -2520,7 +2520,7 @@ Database (foo)
Level Code Message
Field Type Null Key Default Extra
id char(16) NO
data int(11) NO
data int(11) NO NULL
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
Database Table In_use Name_locked
Privilege Context Comment

2
mysql-test/r/type_enum.result
View file

@ -1675,7 +1675,7 @@ t1 CREATE TABLE `t1` (
show columns from t1;
Field Type Null Key Default Extra
a int(11) YES 1
b enum('value','öäü_value','ÊÃÕ') NO
b enum('value','öäü_value','ÊÃÕ') NO NULL
drop table t1;
CREATE TABLE t1 (c enum('a', 'A') BINARY);
INSERT INTO t1 VALUES ('a'),('A');

22
mysql-test/r/type_ranges.result
View file

@ -63,9 +63,9 @@ time_field time NULL YES NULL #
date_time datetime NULL YES NULL #
blob_col blob NULL YES NULL #
tinyblob_col tinyblob NULL YES NULL #
mediumblob_col mediumblob NULL NO #
longblob_col longblob NULL NO #
options enum('one','two','tree') latin1_swedish_ci NO MUL #
mediumblob_col mediumblob NULL NO NULL #
longblob_col longblob NULL NO NULL #
options enum('one','two','tree') latin1_swedish_ci NO MUL NULL #
flags set('one','two','tree') latin1_swedish_ci NO #
show keys from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
@ -214,7 +214,7 @@ Field Type Collation Null Key Default Extra Privileges Comment
auto int(5) unsigned NULL NO MUL NULL auto_increment #
string char(10) latin1_swedish_ci YES newdefault #
tiny tinyint(4) NULL NO MUL 0 #
short smallint(6) NULL NO MUL #
short smallint(6) NULL NO MUL NULL #
medium mediumint(8) NULL NO MUL 0 #
long_int int(11) NULL NO 0 #
longlong bigint(13) NULL NO MUL 0 #
@ -231,8 +231,8 @@ time_field time NULL YES NULL #
date_time datetime NULL YES NULL #
new_blob_col varchar(20) latin1_swedish_ci YES NULL #
tinyblob_col tinyblob NULL YES NULL #
mediumblob_col mediumblob NULL NO #
options enum('one','two','tree') latin1_swedish_ci NO MUL #
mediumblob_col mediumblob NULL NO NULL #
options enum('one','two','tree') latin1_swedish_ci NO MUL NULL #
flags set('one','two','tree') latin1_swedish_ci NO #
new_field char(10) latin1_swedish_ci NO new #
show full columns from t2;
@ -240,7 +240,7 @@ Field Type Collation Null Key Default Extra Privileges Comment
auto int(5) unsigned NULL NO 0 #
string char(10) latin1_swedish_ci YES newdefault #
tiny tinyint(4) NULL NO 0 #
short smallint(6) NULL NO #
short smallint(6) NULL NO NULL #
medium mediumint(8) NULL NO 0 #
long_int int(11) NULL NO 0 #
longlong bigint(13) NULL NO 0 #
@ -257,8 +257,8 @@ time_field time NULL YES NULL #
date_time datetime NULL YES NULL #
new_blob_col varchar(20) latin1_swedish_ci YES NULL #
tinyblob_col tinyblob NULL YES NULL #
mediumblob_col mediumblob NULL NO #
options enum('one','two','tree') latin1_swedish_ci NO #
mediumblob_col mediumblob NULL NO NULL #
options enum('one','two','tree') latin1_swedish_ci NO NULL #
flags set('one','two','tree') latin1_swedish_ci NO #
new_field char(10) latin1_swedish_ci NO new #
select t1.auto,t2.auto from t1,t2 where t1.auto=t2.auto and ((t1.string<>t2.string and (t1.string is not null or t2.string is not null)) or (t1.tiny<>t2.tiny and (t1.tiny is not null or t2.tiny is not null)) or (t1.short<>t2.short and (t1.short is not null or t2.short is not null)) or (t1.medium<>t2.medium and (t1.medium is not null or t2.medium is not null)) or (t1.long_int<>t2.long_int and (t1.long_int is not null or t2.long_int is not null)) or (t1.longlong<>t2.longlong and (t1.longlong is not null or t2.longlong is not null)) or (t1.real_float<>t2.real_float and (t1.real_float is not null or t2.real_float is not null)) or (t1.real_double<>t2.real_double and (t1.real_double is not null or t2.real_double is not null)) or (t1.utiny<>t2.utiny and (t1.utiny is not null or t2.utiny is not null)) or (t1.ushort<>t2.ushort and (t1.ushort is not null or t2.ushort is not null)) or (t1.umedium<>t2.umedium and (t1.umedium is not null or t2.umedium is not null)) or (t1.ulong<>t2.ulong and (t1.ulong is not null or t2.ulong is not null)) or (t1.ulonglong<>t2.ulonglong and (t1.ulonglong is not null or t2.ulonglong is not null)) or (t1.time_stamp<>t2.time_stamp and (t1.time_stamp is not null or t2.time_stamp is not null)) or (t1.date_field<>t2.date_field and (t1.date_field is not null or t2.date_field is not null)) or (t1.time_field<>t2.time_field and (t1.time_field is not null or t2.time_field is not null)) or (t1.date_time<>t2.date_time and (t1.date_time is not null or t2.date_time is not null)) or (t1.new_blob_col<>t2.new_blob_col and (t1.new_blob_col is not null or t2.new_blob_col is not null)) or (t1.tinyblob_col<>t2.tinyblob_col and (t1.tinyblob_col is not null or t2.tinyblob_col is not null)) or (t1.mediumblob_col<>t2.mediumblob_col and (t1.mediumblob_col is not null or t2.mediumblob_col is not null)) or (t1.options<>t2.options and (t1.options is not null or t2.options is not null)) or (t1.flags<>t2.flags and (t1.flags is not null or t2.flags is not null)) or (t1.new_field<>t2.new_field and (t1.new_field is not null or t2.new_field is not null)));
@ -276,8 +276,8 @@ t1 int(1) NULL NO 0 #
t2 varchar(1) latin1_swedish_ci NO #
t3 varchar(256) latin1_swedish_ci NO #
t4 varbinary(256) NULL NO #
t5 longtext latin1_swedish_ci NO #
t6 longblob NULL NO #
t5 longtext latin1_swedish_ci NO NULL #
t6 longblob NULL NO NULL #
t7 char(0) latin1_swedish_ci NO #
t8 binary(0) NULL NO #
select t1,t2,length(t3),length(t4),length(t5),length(t6),t7,t8 from t2;

17
mysql-test/t/information_schema.test
View file

@ -1071,4 +1071,21 @@ connection default;
drop user mysqltest_1@localhost;
drop database mysqltest;
#
# Bug#27747 database metadata doesn't return sufficient column default info
#
create table t1 (
f1 varchar(50),
f2 varchar(50) not null,
f3 varchar(50) default '',
f4 varchar(50) default NULL,
f5 bigint not null,
f6 bigint not null default 10,
f7 datetime not null,
f8 datetime default '2006-01-01'
);
select column_default from information_schema.columns where table_name= 't1';
show columns from t1;
drop table t1;
--echo End of 5.0 tests.

128
sql/sql_show.cc
View file

@ -791,13 +791,70 @@ static void append_directory(THD *thd, String *packet, const char *dir_type,
#define LIST_PROCESS_HOST_LEN 64
static bool get_field_default_value(THD *thd, TABLE *table,
Field *field, String *def_value,
bool quoted)
{
bool has_default;
bool has_now_default;
/*
We are using CURRENT_TIMESTAMP instead of NOW because it is
more standard
*/
has_now_default= table->timestamp_field == field &&
field->unireg_check != Field::TIMESTAMP_UN_FIELD;
has_default= (field->type() != FIELD_TYPE_BLOB &&
!(field->flags & NO_DEFAULT_VALUE_FLAG) &&
field->unireg_check != Field::NEXT_NUMBER &&
!((thd->variables.sql_mode & (MODE_MYSQL323 | MODE_MYSQL40))
&& has_now_default));
def_value->length(0);
if (has_default)
{
if (has_now_default)
def_value->append(STRING_WITH_LEN("CURRENT_TIMESTAMP"));
else if (!field->is_null())
{ // Not null by default
char tmp[MAX_FIELD_WIDTH];
String type(tmp, sizeof(tmp), field->charset());
field->val_str(&type);
if (type.length())
{
String def_val;
uint dummy_errors;
/* convert to system_charset_info == utf8 */
def_val.copy(type.ptr(), type.length(), field->charset(),
system_charset_info, &dummy_errors);
if (quoted)
append_unescaped(def_value, def_val.ptr(), def_val.length());
else
def_value->append(def_val.ptr(), def_val.length());
}
else if (quoted)
def_value->append(STRING_WITH_LEN("''"));
}
else if (field->maybe_null() && quoted)
def_value->append(STRING_WITH_LEN("NULL")); // Null as default
else
return 0;
}
return has_default;
}
static int
store_create_info(THD *thd, TABLE_LIST *table_list, String *packet)
{
List<Item> field_list;
char tmp[MAX_FIELD_WIDTH], *for_str, buff[128];
char tmp[MAX_FIELD_WIDTH], *for_str, buff[128], def_value_buf[MAX_FIELD_WIDTH];
const char *alias;
String type(tmp, sizeof(tmp), system_charset_info);
String def_value(def_value_buf, sizeof(def_value_buf), system_charset_info);
Field **ptr,*field;
uint primary_key;
KEY *key_info;
@ -833,8 +890,6 @@ store_create_info(THD *thd, TABLE_LIST *table_list, String *packet)
for (ptr=table->field ; (field= *ptr); ptr++)
{
bool has_default;
bool has_now_default;
uint flags = field->flags;
if (ptr != table->field)
@ -882,44 +937,10 @@ store_create_info(THD *thd, TABLE_LIST *table_list, String *packet)
packet->append(STRING_WITH_LEN(" NULL"));
}
/*
Again we are using CURRENT_TIMESTAMP instead of NOW because it is
more standard
*/
has_now_default= table->timestamp_field == field &&
field->unireg_check != Field::TIMESTAMP_UN_FIELD;
has_default= (field->type() != FIELD_TYPE_BLOB &&
!(field->flags & NO_DEFAULT_VALUE_FLAG) &&
field->unireg_check != Field::NEXT_NUMBER &&
!((thd->variables.sql_mode & (MODE_MYSQL323 | MODE_MYSQL40))
&& has_now_default));
if (has_default)
if (get_field_default_value(thd, table, field, &def_value, 1))
{
packet->append(STRING_WITH_LEN(" default "));
if (has_now_default)
packet->append(STRING_WITH_LEN("CURRENT_TIMESTAMP"));
else if (!field->is_null())
{ // Not null by default
type.set(tmp, sizeof(tmp), field->charset());
field->val_str(&type);
if (type.length())
{
String def_val;
uint dummy_errors;
/* convert to system_charset_info == utf8 */
def_val.copy(type.ptr(), type.length(), field->charset(),
system_charset_info, &dummy_errors);
append_unescaped(packet, def_val.ptr(), def_val.length());
}
else
packet->append(STRING_WITH_LEN("''"));
}
else if (field->maybe_null())
packet->append(STRING_WITH_LEN("NULL")); // Null as default
else
packet->append(tmp);
packet->append(def_value.ptr(), def_value.length(), system_charset_info);
}
if (!limited_mysql_mode && table->timestamp_field == field &&
@ -2664,7 +2685,6 @@ static int get_schema_column_record(THD *thd, TABLE_LIST *tables,
bool is_blob;
uint flags=field->flags;
char tmp[MAX_FIELD_WIDTH];
char tmp1[MAX_FIELD_WIDTH];
String type(tmp,sizeof(tmp), system_charset_info);
char *end;
int decimals, field_length;
@ -2710,33 +2730,13 @@ static int get_schema_column_record(THD *thd, TABLE_LIST *tables,
table->field[7]->store(type.ptr(),
(tmp_buff ? tmp_buff - type.ptr() :
type.length()), cs);
if (show_table->timestamp_field == field &&
field->unireg_check != Field::TIMESTAMP_UN_FIELD)
if (get_field_default_value(thd, show_table, field, &type, 0))
{
table->field[5]->store(STRING_WITH_LEN("CURRENT_TIMESTAMP"), cs);
table->field[5]->set_notnull();
}
else if (field->unireg_check != Field::NEXT_NUMBER &&
!field->is_null() &&
!(field->flags & NO_DEFAULT_VALUE_FLAG))
{
String def(tmp1,sizeof(tmp1), cs);
type.set(tmp, sizeof(tmp), field->charset());
field->val_str(&type);
uint dummy_errors;
def.copy(type.ptr(), type.length(), type.charset(), cs, &dummy_errors);
table->field[5]->store(def.ptr(), def.length(), def.charset());
table->field[5]->set_notnull();
}
else if (field->unireg_check == Field::NEXT_NUMBER ||
lex->orig_sql_command != SQLCOM_SHOW_FIELDS ||
field->maybe_null())
table->field[5]->set_null(); // Null as default
else
{
table->field[5]->store("",0, cs);
table->field[5]->store(type.ptr(), type.length(), cs);
table->field[5]->set_notnull();
}
pos=(byte*) ((flags & NOT_NULL_FLAG) ? "NO" : "YES");
table->field[6]->store((const char*) pos,
strlen((const char*) pos), cs);