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mysql_install_db creates the GIS stored procedures with the following definer values:
MariaDB [(none)]> select db, name, definer from mysql.proc;
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+------+--------------------+---------+
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| db | name | definer |
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+------+--------------------+---------+
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| test | AddGeometryColumn | @ |
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| test | DropGeometryColumn | @ |
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+------+--------------------+---------+
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2 rows in set (0.00 sec)
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SHOW CREATE PROCEDURE interprets this definer in the following way:
MariaDB [(none)]> SHOW CREATE PROCEDURE test.AddGeometryColumn;
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+-------------------+----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+--------------------+
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| Procedure | sql_mode | Create Procedure | character_set_client | collation_connection | Database Collation |
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+-------------------+----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+--------------------+
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| AddGeometryColumn | | CREATE DEFINER=`` PROCEDURE `AddGeometryColumn`(catalog varchar(64), t_schema varchar(64),
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t_name varchar(64), geometry_column varchar(64), t_srid int)
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begin
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set @qwe= concat('ALTER TABLE ', t_schema, '.', t_name, ' ADD ', geometry_column,' GEOMETRY REF_SYSTEM_ID=', t_srid); PREPARE ls from @qwe; execute ls; deallocate prepare ls; end | latin1 | latin1_swedish_ci | latin1_swedish_ci |
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+-------------------+----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+--------------------+
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1 row in set (0.00 sec)
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But if I try to run this statement, MariaDB actually rejects this definer value:
MariaDB [(none)]> create database db1;
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Query OK, 1 row affected (0.00 sec)
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MariaDB [(none)]> use db1;
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Database changed
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MariaDB [db1]> delimiter //
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MariaDB [db1]> CREATE DEFINER=`` PROCEDURE `AddGeometryColumn`(catalog varchar(64), t_schema varchar(64),
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-> t_name varchar(64), geometry_column varchar(64), t_srid int)
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-> begin
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-> set @qwe= concat('ALTER TABLE ', t_schema, '.', t_name, ' ADD ', geometry_column,' GEOMETRY REF_SYSTEM_ID=', t_srid); PREPARE ls from @qwe; execute ls; deallocate prepare ls; end //
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ERROR 1959 (OP000): Invalid role specification ``.
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Since mysqldump uses SHOW CREATE PROCEDURE to back up procedures, this also breaks things when trying to restore a backup created with mysqldump:
> mysql -u root < master1.sql
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ERROR 1959 (OP000) at line 1212: Invalid role specification ``.
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