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1fb4828b28
- MDEV-28342 raised the error in case temporary table shadows base table
- Now we are allowed to shadow base tables with temporary tables and
`sys.create_synonym_db()` can easily check for existance of temporary table and
ignore view creation, since it is not supported to create view from
temporary table.
Reviewed-by: <monty@mariadb.org>,
<vicentiu@mariadb.org>
97 lines
2.7 KiB
Text
97 lines
2.7 KiB
Text
CREATE TABLE t1 (t1_id int PRIMARY KEY, t1_val varchar(10));
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CREATE TABLE t2 (t2_id int PRIMARY KEY, t1_id int, t2_val int, INDEX (t1_id));
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CREATE TABLE `is` (t1_id int PRIMARY KEY, t1_val varchar(10));
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CREATE TABLE `ab``c` (t1_id int PRIMARY KEY, t1_val varchar(10));
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CREATE SQL SECURITY INVOKER VIEW myview AS SELECT * FROM t1 NATURAL JOIN t2;
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CALL sys.create_synonym_db('test', 'test1');
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summary
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Created 5 views in the `test1` database
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SELECT TABLE_NAME, SECURITY_TYPE FROM information_schema.VIEWS WHERE TABLE_SCHEMA = 'test1' ORDER BY TABLE_NAME;
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TABLE_NAME SECURITY_TYPE
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ab`c INVOKER
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is INVOKER
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myview INVOKER
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t1 INVOKER
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t2 INVOKER
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CALL sys.create_synonym_db('test', 'test1');
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ERROR HY000: Can't create database test1; database exists
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CREATE SCHEMA test2;
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CALL sys.create_synonym_db('test', 'test2');
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ERROR HY000: Can't create database test2; database exists
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SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = 'test2';
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COUNT(*)
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0
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CALL sys.create_synonym_db('test', 'is');
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summary
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Created 5 views in the `is` database
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SELECT TABLE_NAME, SECURITY_TYPE FROM information_schema.VIEWS WHERE TABLE_SCHEMA = 'is' ORDER BY TABLE_NAME;
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TABLE_NAME SECURITY_TYPE
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ab`c INVOKER
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is INVOKER
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myview INVOKER
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t1 INVOKER
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t2 INVOKER
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CALL sys.create_synonym_db('is', 'i`s');
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summary
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Created 5 views in the `i``s` database
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SELECT TABLE_NAME, SECURITY_TYPE FROM information_schema.VIEWS WHERE TABLE_SCHEMA = 'i`s' ORDER BY TABLE_NAME;
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TABLE_NAME SECURITY_TYPE
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ab`c INVOKER
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is INVOKER
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myview INVOKER
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t1 INVOKER
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t2 INVOKER
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DROP SCHEMA test1;
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DROP SCHEMA test2;
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DROP SCHEMA `is`;
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DROP SCHEMA `i``s`;
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DROP VIEW test.myview;
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DROP TABLE test.t1;
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DROP TABLE test.t2;
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DROP TABLE `is`;
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DROP TABLE `ab``c`;
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#
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# MDEV-28342: sys.create_synonym_db fails
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# when a temporary table masks a base table
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#
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create database db;
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use db;
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create table a(a int);
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create table t (b int);
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create table b(a int);
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create temporary table b (a int);
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call sys.create_synonym_db('db','db_copy');
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summary
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Created 2 views in the `db_copy` database
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use db_copy;
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show tables;
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Tables_in_db_copy
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a
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t
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drop database db;
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drop database db_copy;
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# MDEV-28343: sys.create_synonym_db fails with ER_VIEW_SELECT_TMPTABLE
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# when schema contains temporary tables
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#
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create database mytestdb;
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use mytestdb;
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create table t (b int);
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create temporary table tmp (a int);
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call sys.create_synonym_db('mytestdb','db_syn1');
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summary
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Created 1 view in the `db_syn1` database
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use db_syn1;
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show tables;
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Tables_in_db_syn1
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t
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drop database db_syn1;
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use mytestdb;
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create temporary table t (b int);
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call sys.create_synonym_db('mytestdb','db_syn1');
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summary
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Created 0 views in the `db_syn1` database
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use db_syn1;
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show tables;
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Tables_in_db_syn1
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drop database mytestdb;
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drop database db_syn1;
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