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addition of "REFERENCED_TABLE_SCHEMA",

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"REFERENCED_TABLE_NAME", "REFERENCED_COLUMN_NAME" fields into
  KEY_COLUMN_USAGE table
This commit is contained in:
gluh@gluh.mysql.r18.ru
2005-05-20 16:39:28 +04:00
parent 7582b3d82d
commit 68317fcb0c
4 changed files with 42 additions and 16 deletions
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12
mysql-test/r/information_schema.result
View File

@ -412,11 +412,11 @@ NULL test key_1 test t1 UNIQUE
NULL test key_2 test t1 UNIQUE
select * from information_schema.KEY_COLUMN_USAGE where
TABLE_SCHEMA= "test";
CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION POSITION_IN_UNIQUE_CONSTRAINT
NULL test PRIMARY NULL test t1 a 1 NULL
NULL test constraint_1 NULL test t1 a 1 NULL
NULL test key_1 NULL test t1 a 1 NULL
NULL test key_2 NULL test t1 a 1 NULL
CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION POSITION_IN_UNIQUE_CONSTRAINT REFERENCED_TABLE_SCHEMA REFERENCED_TABLE_NAME REFERENCED_COLUMN_NAME
NULL test PRIMARY NULL test t1 a 1 NULL NULL NULL NULL
NULL test constraint_1 NULL test t1 a 1 NULL NULL NULL NULL
NULL test key_1 NULL test t1 a 1 NULL NULL NULL NULL
NULL test key_2 NULL test t1 a 1 NULL NULL NULL NULL
select table_name from information_schema.TABLES where table_schema like "test%";
table_name
t1
@ -560,7 +560,7 @@ TABLE_NAME= "vo";
CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_SCHEMA TABLE_NAME CONSTRAINT_TYPE
select * from information_schema.KEY_COLUMN_USAGE where
TABLE_NAME= "vo";
CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION POSITION_IN_UNIQUE_CONSTRAINT
CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION POSITION_IN_UNIQUE_CONSTRAINT REFERENCED_TABLE_SCHEMA REFERENCED_TABLE_NAME REFERENCED_COLUMN_NAME
drop view vo;
select TABLE_NAME,TABLE_TYPE,ENGINE
from information_schema.tables

21
mysql-test/r/information_schema_inno.result
View File

@ -1,8 +1,10 @@
DROP TABLE IF EXISTS t1,t2;
CREATE TABLE t1 (id INT NOT NULL, PRIMARY KEY (id)) ENGINE=INNODB;
CREATE TABLE t2 (id INT PRIMARY KEY, t1_id INT, INDEX par_ind (t1_id),
CREATE TABLE t2 (id INT PRIMARY KEY, t1_id INT, INDEX par_ind (t1_id, id),
FOREIGN KEY (t1_id) REFERENCES t1(id) ON DELETE CASCADE,
FOREIGN KEY (t1_id) REFERENCES t1(id) ON UPDATE CASCADE) ENGINE=INNODB;
CREATE TABLE t3 (id INT PRIMARY KEY, t2_id INT, INDEX par_ind (t2_id),
FOREIGN KEY (id, t2_id) REFERENCES t2(t1_id, id) ON DELETE CASCADE) ENGINE=INNODB;
select * from information_schema.TABLE_CONSTRAINTS where
TABLE_SCHEMA= "test";
CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_SCHEMA TABLE_NAME CONSTRAINT_TYPE
@ -10,11 +12,16 @@ NULL test PRIMARY test t1 PRIMARY KEY
NULL test PRIMARY test t2 PRIMARY KEY
NULL test t2_ibfk_1 test t2 FOREIGN KEY
NULL test t2_ibfk_2 test t2 FOREIGN KEY
NULL test PRIMARY test t3 PRIMARY KEY
NULL test t3_ibfk_1 test t3 FOREIGN KEY
select * from information_schema.KEY_COLUMN_USAGE where
TABLE_SCHEMA= "test";
CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION POSITION_IN_UNIQUE_CONSTRAINT
NULL test PRIMARY NULL test t1 id 1 NULL
NULL test PRIMARY NULL test t2 id 1 NULL
NULL test t2_ibfk_1 NULL test t2 t1_id 1 1
NULL test t2_ibfk_2 NULL test t2 t1_id 1 1
drop table t2, t1;
CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION POSITION_IN_UNIQUE_CONSTRAINT REFERENCED_TABLE_SCHEMA REFERENCED_TABLE_NAME REFERENCED_COLUMN_NAME
NULL test PRIMARY NULL test t1 id 1 NULL NULL NULL NULL
NULL test PRIMARY NULL test t2 id 1 NULL NULL NULL NULL
NULL test t2_ibfk_1 NULL test t2 t1_id 1 1 test t1 id
NULL test t2_ibfk_2 NULL test t2 t1_id 1 1 test t1 id
NULL test PRIMARY NULL test t3 id 1 NULL NULL NULL NULL
NULL test t3_ibfk_1 NULL test t3 id 1 1 test t2 t1_id
NULL test t3_ibfk_1 NULL test t3 t2_id 2 2 test t2 id
drop table t3, t2, t1;

8
mysql-test/t/information_schema_inno.test
View File

@ -8,12 +8,16 @@ DROP TABLE IF EXISTS t1,t2;
#
CREATE TABLE t1 (id INT NOT NULL, PRIMARY KEY (id)) ENGINE=INNODB;
CREATE TABLE t2 (id INT PRIMARY KEY, t1_id INT, INDEX par_ind (t1_id),
CREATE TABLE t2 (id INT PRIMARY KEY, t1_id INT, INDEX par_ind (t1_id, id),
FOREIGN KEY (t1_id) REFERENCES t1(id) ON DELETE CASCADE,
FOREIGN KEY (t1_id) REFERENCES t1(id) ON UPDATE CASCADE) ENGINE=INNODB;
CREATE TABLE t3 (id INT PRIMARY KEY, t2_id INT, INDEX par_ind (t2_id),
FOREIGN KEY (id, t2_id) REFERENCES t2(t1_id, id) ON DELETE CASCADE) ENGINE=INNODB;
select * from information_schema.TABLE_CONSTRAINTS where
TABLE_SCHEMA= "test";
select * from information_schema.KEY_COLUMN_USAGE where
TABLE_SCHEMA= "test";
drop table t2, t1;
drop table t3, t2, t1;

17
sql/sql_show.cc
View File

@ -3009,12 +3009,13 @@ static int get_schema_key_column_usage_record(THD *thd,
while ((f_key_info= it++))
{
LEX_STRING *f_info;
LEX_STRING *r_info;
List_iterator_fast<LEX_STRING> it(f_key_info->foreign_fields),
it1(f_key_info->referenced_fields);
uint f_idx= 0;
while ((f_info= it++))
{
it1++; // Ignore r_info
r_info= it1++;
f_idx++;
restore_record(table, s->default_values);
store_key_column_usage(table, base_name, file_name,
@ -3024,6 +3025,17 @@ static int get_schema_key_column_usage_record(THD *thd,
(longlong) f_idx);
table->field[8]->store((longlong) f_idx);
table->field[8]->set_notnull();
table->field[9]->store(f_key_info->referenced_db->str,
f_key_info->referenced_db->length,
system_charset_info);
table->field[9]->set_notnull();
table->field[10]->store(f_key_info->referenced_table->str,
f_key_info->referenced_table->length,
system_charset_info);
table->field[10]->set_notnull();
table->field[11]->store(r_info->str, r_info->length,
system_charset_info);
table->field[11]->set_notnull();
if (schema_table_store_record(thd, table))
DBUG_RETURN(1);
}
@ -3771,6 +3783,9 @@ ST_FIELD_INFO key_column_usage_fields_info[]=
{"COLUMN_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{"ORDINAL_POSITION", 10 ,MYSQL_TYPE_LONG, 0, 0, 0},
{"POSITION_IN_UNIQUE_CONSTRAINT", 10 ,MYSQL_TYPE_LONG, 0, 1, 0},
{"REFERENCED_TABLE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
{"REFERENCED_TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
{"REFERENCED_COLUMN_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
{0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
};