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WL#2257 REFERENTIAL_CONSTRAINTS view

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added I_S.REFARENTIAL_CONSTRAINTS table
This commit is contained in:
gluh@eagle.intranet.mysql.r18.ru 2006-05-02 16:31:39 +05:00
parent b050f975c4
commit 19de86dd63
7 changed files with 208 additions and 31 deletions
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6
mysql-test/r/information_schema.result
View File

@ -50,6 +50,7 @@ KEY_COLUMN_USAGE
PARTITIONS
PLUGINS
PROCESSLIST
REFERENTIAL_CONSTRAINTS
ROUTINES
SCHEMATA
SCHEMA_PRIVILEGES
@ -745,7 +746,7 @@ CREATE TABLE t_crashme ( f1 BIGINT);
CREATE VIEW a1 (t_CRASHME) AS SELECT f1 FROM t_crashme GROUP BY f1;
CREATE VIEW a2 AS SELECT t_CRASHME FROM a1;
count(*)
112
113
drop view a2, a1;
drop table t_crashme;
select table_schema,table_name, column_name from
@ -832,6 +833,7 @@ COLUMN_PRIVILEGES TABLE_NAME select
FILES TABLE_NAME select
KEY_COLUMN_USAGE TABLE_NAME select
PARTITIONS TABLE_NAME select
REFERENTIAL_CONSTRAINTS TABLE_NAME select
STATISTICS TABLE_NAME select
TABLES TABLE_NAME select
TABLE_CONSTRAINTS TABLE_NAME select
@ -843,7 +845,7 @@ flush privileges;
SELECT table_schema, count(*) FROM information_schema.TABLES GROUP BY TABLE_SCHEMA;
table_schema count(*)
cluster 1
information_schema 22
information_schema 23
mysql 21
create table t1 (i int, j int);
create trigger trg1 before insert on t1 for each row

1
mysql-test/r/information_schema_db.result
View File

@ -13,6 +13,7 @@ KEY_COLUMN_USAGE
PARTITIONS
PLUGINS
PROCESSLIST
REFERENTIAL_CONSTRAINTS
ROUTINES
SCHEMATA
SCHEMA_PRIVILEGES

31
mysql-test/r/information_schema_inno.result
View File

@ -25,3 +25,34 @@ 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;
CREATE TABLE t1(a1 INT NOT NULL, a2 INT NOT NULL,
PRIMARY KEY(a1, a2)) ENGINE=INNODB;
CREATE TABLE t2(b1 INT, b2 INT, INDEX (b1, b2),
CONSTRAINT A1
FOREIGN KEY (b1, b2) REFERENCES t1(a1, a2)
ON UPDATE CASCADE ON DELETE NO ACTION) ENGINE=INNODB;
CREATE TABLE t3(b1 INT, b2 INT, INDEX (b1, b2),
CONSTRAINT A2
FOREIGN KEY (b1, b2) REFERENCES t2(b1, b2)
ON UPDATE SET NULL ON DELETE RESTRICT) ENGINE=INNODB;
CREATE TABLE t4(b1 INT, b2 INT, INDEX (b1, b2),
CONSTRAINT A3
FOREIGN KEY (b1, b2) REFERENCES t3(b1, b2)
ON UPDATE NO ACTION ON DELETE SET NULL) ENGINE=INNODB;
CREATE TABLE t5(b1 INT, b2 INT, INDEX (b1, b2),
CONSTRAINT A4
FOREIGN KEY (b1, b2) REFERENCES t4(b1, b2)
ON UPDATE RESTRICT ON DELETE CASCADE) ENGINE=INNODB;
select a.CONSTRAINT_SCHEMA, b.TABLE_NAME, CONSTRAINT_TYPE,
b.CONSTRAINT_NAME, UNIQUE_CONSTRAINT_SCHEMA, UNIQUE_CONSTRAINT_NAME,
MATCH_OPTION, UPDATE_RULE, DELETE_RULE
from information_schema.TABLE_CONSTRAINTS a,
information_schema.REFERENTIAL_CONSTRAINTS b
where a.CONSTRAINT_SCHEMA = 'test' and a.CONSTRAINT_SCHEMA = b.CONSTRAINT_SCHEMA and
a.CONSTRAINT_NAME = b.CONSTRAINT_NAME;
CONSTRAINT_SCHEMA TABLE_NAME CONSTRAINT_TYPE CONSTRAINT_NAME UNIQUE_CONSTRAINT_SCHEMA UNIQUE_CONSTRAINT_NAME MATCH_OPTION UPDATE_RULE DELETE_RULE
test t2 FOREIGN KEY A1 test t1 NONE CASCADE NO ACTION
test t3 FOREIGN KEY A2 test t2 NONE SET NULL RESTRICT
test t4 FOREIGN KEY A3 test t3 NONE NO ACTION SET NULL
test t5 FOREIGN KEY A4 test t4 NONE RESTRICT CASCADE
drop tables t5, t4, t3, t2, t1;

32
mysql-test/t/information_schema_inno.test
View File

@ -21,3 +21,35 @@ select * from information_schema.KEY_COLUMN_USAGE where
TABLE_SCHEMA= "test";
drop table t3, t2, t1;
#
# Test for REFERENTIAL_CONSTRAINTS table
#
CREATE TABLE t1(a1 INT NOT NULL, a2 INT NOT NULL,
PRIMARY KEY(a1, a2)) ENGINE=INNODB;
CREATE TABLE t2(b1 INT, b2 INT, INDEX (b1, b2),
CONSTRAINT A1
FOREIGN KEY (b1, b2) REFERENCES t1(a1, a2)
ON UPDATE CASCADE ON DELETE NO ACTION) ENGINE=INNODB;
CREATE TABLE t3(b1 INT, b2 INT, INDEX (b1, b2),
CONSTRAINT A2
FOREIGN KEY (b1, b2) REFERENCES t2(b1, b2)
ON UPDATE SET NULL ON DELETE RESTRICT) ENGINE=INNODB;
CREATE TABLE t4(b1 INT, b2 INT, INDEX (b1, b2),
CONSTRAINT A3
FOREIGN KEY (b1, b2) REFERENCES t3(b1, b2)
ON UPDATE NO ACTION ON DELETE SET NULL) ENGINE=INNODB;
CREATE TABLE t5(b1 INT, b2 INT, INDEX (b1, b2),
CONSTRAINT A4
FOREIGN KEY (b1, b2) REFERENCES t4(b1, b2)
ON UPDATE RESTRICT ON DELETE CASCADE) ENGINE=INNODB;
select a.CONSTRAINT_SCHEMA, b.TABLE_NAME, CONSTRAINT_TYPE,
b.CONSTRAINT_NAME, UNIQUE_CONSTRAINT_SCHEMA, UNIQUE_CONSTRAINT_NAME,
MATCH_OPTION, UPDATE_RULE, DELETE_RULE
from information_schema.TABLE_CONSTRAINTS a,
information_schema.REFERENTIAL_CONSTRAINTS b
where a.CONSTRAINT_SCHEMA = 'test' and a.CONSTRAINT_SCHEMA = b.CONSTRAINT_SCHEMA and
a.CONSTRAINT_NAME = b.CONSTRAINT_NAME;
drop tables t5, t4, t3, t2, t1;

77
sql/ha_innodb.cc
View File

@ -5827,34 +5827,55 @@ ha_innobase::get_foreign_key_list(THD *thd, List<FOREIGN_KEY_INFO> *f_key_list)
break;
}
ulong length= 0;
if (foreign->type == DICT_FOREIGN_ON_DELETE_CASCADE) {
length=17;
tmp_buff= "ON DELETE CASCADE";
}
else if (foreign->type == DICT_FOREIGN_ON_DELETE_SET_NULL) {
length=18;
tmp_buff= "ON DELETE SET NULL";
}
else if (foreign->type == DICT_FOREIGN_ON_DELETE_NO_ACTION) {
length=19;
tmp_buff= "ON DELETE NO ACTION";
}
else if (foreign->type == DICT_FOREIGN_ON_UPDATE_CASCADE) {
length=17;
tmp_buff= "ON UPDATE CASCADE";
}
else if (foreign->type == DICT_FOREIGN_ON_UPDATE_SET_NULL) {
length=18;
tmp_buff= "ON UPDATE SET NULL";
}
else if (foreign->type == DICT_FOREIGN_ON_UPDATE_NO_ACTION) {
length=19;
tmp_buff= "ON UPDATE NO ACTION";
}
f_key_info.constraint_method= make_lex_string(thd,
f_key_info.constraint_method,
tmp_buff, length, 1);
ulong length;
if (foreign->type & DICT_FOREIGN_ON_DELETE_CASCADE)
{
length=7;
tmp_buff= "CASCADE";
}
else if (foreign->type & DICT_FOREIGN_ON_DELETE_SET_NULL)
{
length=8;
tmp_buff= "SET NULL";
}
else if (foreign->type & DICT_FOREIGN_ON_DELETE_NO_ACTION)
{
length=9;
tmp_buff= "NO ACTION";
}
else
{
length=8;
tmp_buff= "RESTRICT";
}
f_key_info.delete_method= make_lex_string(thd, f_key_info.delete_method,
tmp_buff, length, 1);
if (foreign->type & DICT_FOREIGN_ON_UPDATE_CASCADE)
{
length=7;
tmp_buff= "CASCADE";
}
else if (foreign->type & DICT_FOREIGN_ON_UPDATE_SET_NULL)
{
length=8;
tmp_buff= "SET NULL";
}
else if (foreign->type & DICT_FOREIGN_ON_UPDATE_NO_ACTION)
{
length=9;
tmp_buff= "NO ACTION";
}
else
{
length=8;
tmp_buff= "RESTRICT";
}
f_key_info.update_method= make_lex_string(thd, f_key_info.update_method,
tmp_buff, length, 1);
FOREIGN_KEY_INFO *pf_key_info= ((FOREIGN_KEY_INFO *)
thd->memdup((gptr) &f_key_info,

88
sql/sql_show.cc
View File

@ -4231,6 +4231,75 @@ int fill_status(THD *thd, TABLE_LIST *tables, COND *cond)
}
/*
Fill and store records into I_S.referential_constraints table
SYNOPSIS
get_referential_constraints_record()
thd thread handle
tables table list struct(processed table)
table I_S table
res 1 means the error during opening of the processed table
0 means processed table is opened without error
base_name db name
file_name table name
RETURN
0 ok
# error
*/
static int
get_referential_constraints_record(THD *thd, struct st_table_list *tables,
TABLE *table, bool res,
const char *base_name, const char *file_name)
{
CHARSET_INFO *cs= system_charset_info;
DBUG_ENTER("get_referential_constraints_record");
if (res)
{
if (!tables->view)
push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
thd->net.last_errno, thd->net.last_error);
thd->clear_error();
DBUG_RETURN(0);
}
if (!tables->view)
{
List<FOREIGN_KEY_INFO> f_key_list;
TABLE *show_table= tables->table;
show_table->file->info(HA_STATUS_VARIABLE |
HA_STATUS_NO_LOCK |
HA_STATUS_TIME);
show_table->file->get_foreign_key_list(thd, &f_key_list);
FOREIGN_KEY_INFO *f_key_info;
List_iterator_fast<FOREIGN_KEY_INFO> it(f_key_list);
while ((f_key_info= it++))
{
restore_record(table, s->default_values);
table->field[1]->store(base_name, strlen(base_name), cs);
table->field[9]->store(file_name, strlen(file_name), cs);
table->field[2]->store(f_key_info->forein_id->str,
f_key_info->forein_id->length, cs);
table->field[4]->store(f_key_info->referenced_db->str,
f_key_info->referenced_db->length, cs);
table->field[5]->store(f_key_info->referenced_table->str,
f_key_info->referenced_table->length, cs);
table->field[6]->store(STRING_WITH_LEN("NONE"), cs);
table->field[7]->store(f_key_info->update_method->str,
f_key_info->update_method->length, cs);
table->field[8]->store(f_key_info->delete_method->str,
f_key_info->delete_method->length, cs);
if (schema_table_store_record(thd, table))
DBUG_RETURN(1);
}
}
DBUG_RETURN(0);
}
/*
Find schema_tables elment by name
@ -5160,6 +5229,22 @@ ST_FIELD_INFO files_fields_info[]=
{0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
};
ST_FIELD_INFO referential_constraints_fields_info[]=
{
{"CONSTRAINT_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
{"CONSTRAINT_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{"CONSTRAINT_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{"UNIQUE_CONSTRAINT_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
{"UNIQUE_CONSTRAINT_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{"UNIQUE_CONSTRAINT_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{"MATCH_OPTION", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{"UPDATE_RULE", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{"DELETE_RULE", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{"TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
};
/*
Description of ST_FIELD_INFO in table.h
@ -5195,6 +5280,9 @@ ST_SCHEMA_TABLE schema_tables[]=
fill_plugins, make_old_format, 0, -1, -1, 0},
{"PROCESSLIST", processlist_fields_info, create_schema_table,
fill_schema_processlist, make_old_format, 0, -1, -1, 0},
{"REFERENTIAL_CONSTRAINTS", referential_constraints_fields_info,
create_schema_table, get_all_tables, 0, get_referential_constraints_record,
1, 9, 0},
{"ROUTINES", proc_fields_info, create_schema_table,
fill_schema_proc, make_proc_old_format, 0, -1, -1, 0},
{"SCHEMATA", schema_fields_info, create_schema_table,

4
sql/table.h
View File

@ -335,7 +335,8 @@ typedef struct st_foreign_key_info
LEX_STRING *forein_id;
LEX_STRING *referenced_db;
LEX_STRING *referenced_table;
LEX_STRING *constraint_method;
LEX_STRING *update_method;
LEX_STRING *delete_method;
List<LEX_STRING> foreign_fields;
List<LEX_STRING> referenced_fields;
} FOREIGN_KEY_INFO;
@ -359,6 +360,7 @@ enum enum_schema_tables
SCH_PARTITIONS,
SCH_PLUGINS,
SCH_PROCESSLIST,
SCH_REFERENTIAL_CONSTRAINTS,
SCH_PROCEDURES,
SCH_SCHEMATA,
SCH_SCHEMA_PRIVILEGES,