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439 lines
20 KiB
Plaintext
439 lines
20 KiB
Plaintext
SHOW TABLES FROM information_schema LIKE 'KEY_COLUMN_USAGE';
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Tables_in_information_schema (KEY_COLUMN_USAGE)
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KEY_COLUMN_USAGE
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#######################################################################
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# Testcase 3.2.1.1: INFORMATION_SCHEMA tables can be queried via SELECT
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#######################################################################
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DROP VIEW IF EXISTS test.v1;
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DROP PROCEDURE IF EXISTS test.p1;
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DROP FUNCTION IF EXISTS test.f1;
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CREATE VIEW test.v1 AS SELECT * FROM information_schema.KEY_COLUMN_USAGE;
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CREATE PROCEDURE test.p1() SELECT * FROM information_schema.KEY_COLUMN_USAGE;
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CREATE FUNCTION test.f1() returns BIGINT
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BEGIN
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DECLARE counter BIGINT DEFAULT NULL;
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SELECT COUNT(*) INTO counter FROM information_schema.KEY_COLUMN_USAGE;
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RETURN counter;
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END//
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# Attention: The printing of the next result sets is disabled.
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SELECT * FROM information_schema.KEY_COLUMN_USAGE;
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SELECT * FROM test.v1;
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CALL test.p1;
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SELECT test.f1();
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DROP VIEW test.v1;
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DROP PROCEDURE test.p1;
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DROP FUNCTION test.f1;
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#########################################################################
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# Testcase 3.2.7.1: INFORMATION_SCHEMA.KEY_COLUMN_USAGE layout
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#########################################################################
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DESCRIBE information_schema.KEY_COLUMN_USAGE;
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Field Type Null Key Default Extra
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CONSTRAINT_CATALOG varchar(512) NO
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CONSTRAINT_SCHEMA varchar(64) NO
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CONSTRAINT_NAME varchar(64) NO
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TABLE_CATALOG varchar(512) NO
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TABLE_SCHEMA varchar(64) NO
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TABLE_NAME varchar(64) NO
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COLUMN_NAME varchar(64) NO
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ORDINAL_POSITION bigint(10) NO 0
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POSITION_IN_UNIQUE_CONSTRAINT bigint(10) YES NULL
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REFERENCED_TABLE_SCHEMA varchar(64) YES NULL
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REFERENCED_TABLE_NAME varchar(64) YES NULL
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REFERENCED_COLUMN_NAME varchar(64) YES NULL
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SHOW CREATE TABLE information_schema.KEY_COLUMN_USAGE;
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Table Create Table
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KEY_COLUMN_USAGE CREATE TEMPORARY TABLE `KEY_COLUMN_USAGE` (
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`CONSTRAINT_CATALOG` varchar(512) NOT NULL DEFAULT '',
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`CONSTRAINT_SCHEMA` varchar(64) NOT NULL DEFAULT '',
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`CONSTRAINT_NAME` varchar(64) NOT NULL DEFAULT '',
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`TABLE_CATALOG` varchar(512) NOT NULL DEFAULT '',
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`TABLE_SCHEMA` varchar(64) NOT NULL DEFAULT '',
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`TABLE_NAME` varchar(64) NOT NULL DEFAULT '',
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`COLUMN_NAME` varchar(64) NOT NULL DEFAULT '',
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`ORDINAL_POSITION` bigint(10) NOT NULL DEFAULT '0',
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`POSITION_IN_UNIQUE_CONSTRAINT` bigint(10) DEFAULT NULL,
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`REFERENCED_TABLE_SCHEMA` varchar(64) DEFAULT NULL,
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`REFERENCED_TABLE_NAME` varchar(64) DEFAULT NULL,
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`REFERENCED_COLUMN_NAME` varchar(64) DEFAULT NULL
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) ENGINE=MEMORY DEFAULT CHARSET=utf8
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SHOW COLUMNS FROM information_schema.KEY_COLUMN_USAGE;
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Field Type Null Key Default Extra
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CONSTRAINT_CATALOG varchar(512) NO
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CONSTRAINT_SCHEMA varchar(64) NO
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CONSTRAINT_NAME varchar(64) NO
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TABLE_CATALOG varchar(512) NO
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TABLE_SCHEMA varchar(64) NO
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TABLE_NAME varchar(64) NO
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COLUMN_NAME varchar(64) NO
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ORDINAL_POSITION bigint(10) NO 0
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POSITION_IN_UNIQUE_CONSTRAINT bigint(10) YES NULL
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REFERENCED_TABLE_SCHEMA varchar(64) YES NULL
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REFERENCED_TABLE_NAME varchar(64) YES NULL
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REFERENCED_COLUMN_NAME varchar(64) YES NULL
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SELECT constraint_catalog, constraint_schema, constraint_name, table_catalog,
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table_schema, table_name, column_name
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FROM information_schema.key_column_usage
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WHERE constraint_catalog IS NOT NULL OR table_catalog IS NOT NULL;
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constraint_catalog constraint_schema constraint_name table_catalog table_schema table_name column_name
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def mysql PRIMARY def mysql column_stats db_name
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def mysql PRIMARY def mysql column_stats table_name
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def mysql PRIMARY def mysql column_stats column_name
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def mysql PRIMARY def mysql columns_priv Host
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def mysql PRIMARY def mysql columns_priv Db
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def mysql PRIMARY def mysql columns_priv User
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def mysql PRIMARY def mysql columns_priv Table_name
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def mysql PRIMARY def mysql columns_priv Column_name
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def mysql PRIMARY def mysql db Host
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def mysql PRIMARY def mysql db Db
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def mysql PRIMARY def mysql db User
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def mysql PRIMARY def mysql event db
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def mysql PRIMARY def mysql event name
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def mysql PRIMARY def mysql func name
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def mysql PRIMARY def mysql gtid_slave_pos domain_id
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def mysql PRIMARY def mysql gtid_slave_pos sub_id
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def mysql PRIMARY def mysql help_category help_category_id
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def mysql name def mysql help_category name
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def mysql PRIMARY def mysql help_keyword help_keyword_id
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def mysql name def mysql help_keyword name
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def mysql PRIMARY def mysql help_relation help_keyword_id
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def mysql PRIMARY def mysql help_relation help_topic_id
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def mysql PRIMARY def mysql help_topic help_topic_id
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def mysql name def mysql help_topic name
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def mysql PRIMARY def mysql host Host
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def mysql PRIMARY def mysql host Db
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def mysql PRIMARY def mysql index_stats db_name
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def mysql PRIMARY def mysql index_stats table_name
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def mysql PRIMARY def mysql index_stats index_name
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def mysql PRIMARY def mysql index_stats prefix_arity
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def mysql PRIMARY def mysql innodb_index_stats database_name
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def mysql PRIMARY def mysql innodb_index_stats table_name
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def mysql PRIMARY def mysql innodb_index_stats index_name
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def mysql PRIMARY def mysql innodb_index_stats stat_name
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def mysql PRIMARY def mysql innodb_table_stats database_name
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def mysql PRIMARY def mysql innodb_table_stats table_name
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def mysql PRIMARY def mysql plugin name
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def mysql PRIMARY def mysql proc db
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def mysql PRIMARY def mysql proc name
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def mysql PRIMARY def mysql proc type
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def mysql PRIMARY def mysql procs_priv Host
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def mysql PRIMARY def mysql procs_priv Db
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def mysql PRIMARY def mysql procs_priv User
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def mysql PRIMARY def mysql procs_priv Routine_name
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def mysql PRIMARY def mysql procs_priv Routine_type
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def mysql PRIMARY def mysql proxies_priv Host
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def mysql PRIMARY def mysql proxies_priv User
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def mysql PRIMARY def mysql proxies_priv Proxied_host
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def mysql PRIMARY def mysql proxies_priv Proxied_user
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def mysql Host def mysql roles_mapping Host
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def mysql Host def mysql roles_mapping User
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def mysql Host def mysql roles_mapping Role
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def mysql PRIMARY def mysql servers Server_name
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def mysql PRIMARY def mysql table_stats db_name
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def mysql PRIMARY def mysql table_stats table_name
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def mysql PRIMARY def mysql tables_priv Host
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def mysql PRIMARY def mysql tables_priv Db
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def mysql PRIMARY def mysql tables_priv User
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def mysql PRIMARY def mysql tables_priv Table_name
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def mysql PRIMARY def mysql time_zone Time_zone_id
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def mysql PRIMARY def mysql time_zone_leap_second Transition_time
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def mysql PRIMARY def mysql time_zone_name Name
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def mysql PRIMARY def mysql time_zone_transition Time_zone_id
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def mysql PRIMARY def mysql time_zone_transition Transition_time
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def mysql PRIMARY def mysql time_zone_transition_type Time_zone_id
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def mysql PRIMARY def mysql time_zone_transition_type Transition_type_id
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def mysql PRIMARY def mysql user Host
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def mysql PRIMARY def mysql user User
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########################################################################################
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# Testcase 3.2.7.2 + 3.2.7.3: INFORMATION_SCHEMA.KEY_COLUMN_USAGE accessible information
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########################################################################################
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DROP DATABASE IF EXISTS db_datadict;
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CREATE DATABASE db_datadict;
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DROP USER 'testuser1'@'localhost';
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CREATE USER 'testuser1'@'localhost';
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DROP USER 'testuser2'@'localhost';
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CREATE USER 'testuser2'@'localhost';
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USE db_datadict;
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CREATE TABLE t1_1
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(f1 INT NOT NULL, PRIMARY KEY(f1),
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f2 INT, INDEX f2_ind(f2))
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ENGINE = <engine_type>;
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GRANT SELECT ON t1_1 to 'testuser1'@'localhost';
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CREATE TABLE t1_2
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(f1 INT NOT NULL, PRIMARY KEY(f1),
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f2 INT, INDEX f2_ind(f2))
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ENGINE = <engine_type>;
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GRANT SELECT ON t1_2 to 'testuser2'@'localhost';
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SELECT * FROM information_schema.key_column_usage
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WHERE table_name LIKE 't1_%'
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ORDER BY constraint_catalog, constraint_schema, constraint_name,
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table_catalog, table_schema, table_name, ordinal_position;
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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
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def db_datadict PRIMARY def db_datadict t1_1 f1 1 NULL NULL NULL NULL
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def db_datadict PRIMARY def db_datadict t1_2 f1 1 NULL NULL NULL NULL
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# Establish connection testuser1 (user=testuser1)
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SELECT * FROM information_schema.key_column_usage
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WHERE table_name LIKE 't1_%'
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ORDER BY constraint_catalog, constraint_schema, constraint_name,
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table_catalog, table_schema, table_name, ordinal_position;
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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
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def db_datadict PRIMARY def db_datadict t1_1 f1 1 NULL NULL NULL NULL
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# Establish connection testuser2 (user=testuser2)
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SELECT * FROM information_schema.key_column_usage
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WHERE table_name LIKE 't1_%'
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ORDER BY constraint_catalog, constraint_schema, constraint_name,
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table_catalog, table_schema, table_name, ordinal_position;
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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
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def db_datadict PRIMARY def db_datadict t1_2 f1 1 NULL NULL NULL NULL
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# Switch to connection default and close connections testuser1, testuser2
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DROP USER 'testuser1'@'localhost';
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DROP USER 'testuser2'@'localhost';
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DROP TABLE t1_1;
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DROP TABLE t1_2;
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DROP DATABASE IF EXISTS db_datadict;
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########################################################################################
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# Testcase 3.2.1.13+3.2.1.14+3.2.1.15: INFORMATION_SCHEMA.KEY_COLUMN_USAGE modifications
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########################################################################################
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DROP DATABASE IF EXISTS db_datadict;
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DROP TABLE IF EXISTS test.t1_my_table;
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CREATE DATABASE db_datadict;
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SELECT table_name FROM information_schema.key_column_usage
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WHERE table_name LIKE 't1_my_table%';
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table_name
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CREATE TABLE test.t1_my_table
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(f1 CHAR(12), f2 TIMESTAMP, f4 BIGINT, PRIMARY KEY(f1,f2))
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DEFAULT CHARACTER SET latin1 COLLATE latin1_swedish_ci
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ENGINE = <engine_type>;
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SELECT * FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_table';
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CONSTRAINT_CATALOG def
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CONSTRAINT_SCHEMA test
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CONSTRAINT_NAME PRIMARY
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TABLE_CATALOG def
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TABLE_SCHEMA test
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TABLE_NAME t1_my_table
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COLUMN_NAME f1
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ORDINAL_POSITION 1
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POSITION_IN_UNIQUE_CONSTRAINT NULL
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REFERENCED_TABLE_SCHEMA NULL
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REFERENCED_TABLE_NAME NULL
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REFERENCED_COLUMN_NAME NULL
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CONSTRAINT_CATALOG def
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CONSTRAINT_SCHEMA test
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CONSTRAINT_NAME PRIMARY
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TABLE_CATALOG def
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TABLE_SCHEMA test
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TABLE_NAME t1_my_table
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COLUMN_NAME f2
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ORDINAL_POSITION 2
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POSITION_IN_UNIQUE_CONSTRAINT NULL
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REFERENCED_TABLE_SCHEMA NULL
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REFERENCED_TABLE_NAME NULL
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REFERENCED_COLUMN_NAME NULL
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SELECT DISTINCT table_name FROM information_schema.key_column_usage
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WHERE table_name LIKE 't1_my_table%';
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table_name
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t1_my_table
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RENAME TABLE test.t1_my_table TO test.t1_my_tablex;
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SELECT DISTINCT table_name FROM information_schema.key_column_usage
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WHERE table_name LIKE 't1_my_table%';
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table_name
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t1_my_tablex
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SELECT DISTINCT table_schema,table_name FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex';
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table_schema table_name
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test t1_my_tablex
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RENAME TABLE test.t1_my_tablex TO db_datadict.t1_my_tablex;
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SELECT DISTINCT table_schema,table_name FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex';
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table_schema table_name
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db_datadict t1_my_tablex
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SELECT DISTINCT table_name, column_name FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY table_name, column_name;
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table_name column_name
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t1_my_tablex f1
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t1_my_tablex f2
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ALTER TABLE db_datadict.t1_my_tablex CHANGE COLUMN f1 first_col CHAR(12);
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SELECT DISTINCT table_name, column_name FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY table_name, column_name;
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table_name column_name
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t1_my_tablex f2
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t1_my_tablex first_col
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SELECT constraint_schema, constraint_name, table_schema,
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table_name, column_name, ordinal_position
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FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY constraint_schema, constraint_name, table_schema,
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table_name, ordinal_position;
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constraint_schema constraint_name table_schema table_name column_name ordinal_position
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db_datadict PRIMARY db_datadict t1_my_tablex first_col 1
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db_datadict PRIMARY db_datadict t1_my_tablex f2 2
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CREATE INDEX f2 ON db_datadict.t1_my_tablex(f2);
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SELECT constraint_schema, constraint_name, table_schema,
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table_name, column_name, ordinal_position
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FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY constraint_schema, constraint_name, table_schema,
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table_name, ordinal_position;
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constraint_schema constraint_name table_schema table_name column_name ordinal_position
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db_datadict PRIMARY db_datadict t1_my_tablex first_col 1
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db_datadict PRIMARY db_datadict t1_my_tablex f2 2
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DROP INDEX f2 ON db_datadict.t1_my_tablex;
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SELECT constraint_schema, constraint_name, table_schema,
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table_name, column_name, ordinal_position
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FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY constraint_schema, constraint_name, table_schema,
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table_name, ordinal_position;
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constraint_schema constraint_name table_schema table_name column_name ordinal_position
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db_datadict PRIMARY db_datadict t1_my_tablex first_col 1
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db_datadict PRIMARY db_datadict t1_my_tablex f2 2
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ALTER TABLE db_datadict.t1_my_tablex ADD UNIQUE (f2);
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SELECT constraint_schema, constraint_name, table_schema,
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table_name, column_name, ordinal_position
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FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY constraint_schema, constraint_name, table_schema,
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table_name, ordinal_position;
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constraint_schema constraint_name table_schema table_name column_name ordinal_position
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db_datadict f2 db_datadict t1_my_tablex f2 1
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db_datadict PRIMARY db_datadict t1_my_tablex first_col 1
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db_datadict PRIMARY db_datadict t1_my_tablex f2 2
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DROP INDEX f2 ON db_datadict.t1_my_tablex;
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SELECT constraint_schema, constraint_name, table_schema,
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table_name, column_name, ordinal_position
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FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY constraint_schema, constraint_name, table_schema,
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table_name, ordinal_position;
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constraint_schema constraint_name table_schema table_name column_name ordinal_position
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db_datadict PRIMARY db_datadict t1_my_tablex first_col 1
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db_datadict PRIMARY db_datadict t1_my_tablex f2 2
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ALTER TABLE db_datadict.t1_my_tablex ADD UNIQUE my_idx (f2);
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SELECT constraint_schema, constraint_name, table_schema,
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table_name, column_name, ordinal_position
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FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY constraint_schema, constraint_name, table_schema,
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table_name, ordinal_position;
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constraint_schema constraint_name table_schema table_name column_name ordinal_position
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db_datadict my_idx db_datadict t1_my_tablex f2 1
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db_datadict PRIMARY db_datadict t1_my_tablex first_col 1
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db_datadict PRIMARY db_datadict t1_my_tablex f2 2
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DROP INDEX my_idx ON db_datadict.t1_my_tablex;
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SELECT constraint_schema, constraint_name, table_schema,
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table_name, column_name, ordinal_position
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FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY constraint_schema, constraint_name, table_schema,
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table_name, ordinal_position;
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constraint_schema constraint_name table_schema table_name column_name ordinal_position
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db_datadict PRIMARY db_datadict t1_my_tablex first_col 1
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db_datadict PRIMARY db_datadict t1_my_tablex f2 2
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ALTER TABLE db_datadict.t1_my_tablex ADD UNIQUE my_idx (f4,first_col);
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SELECT constraint_schema, constraint_name, table_schema,
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table_name, column_name, ordinal_position
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FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY constraint_schema, constraint_name, table_schema,
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table_name, ordinal_position;
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constraint_schema constraint_name table_schema table_name column_name ordinal_position
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db_datadict my_idx db_datadict t1_my_tablex f4 1
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db_datadict my_idx db_datadict t1_my_tablex first_col 2
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db_datadict PRIMARY db_datadict t1_my_tablex first_col 1
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db_datadict PRIMARY db_datadict t1_my_tablex f2 2
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SELECT constraint_schema, constraint_name, table_schema,
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table_name, column_name, ordinal_position
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FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY constraint_schema, constraint_name, table_schema,
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table_name, ordinal_position;
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constraint_schema constraint_name table_schema table_name column_name ordinal_position
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db_datadict my_idx db_datadict t1_my_tablex f4 1
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db_datadict my_idx db_datadict t1_my_tablex first_col 2
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db_datadict PRIMARY db_datadict t1_my_tablex first_col 1
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db_datadict PRIMARY db_datadict t1_my_tablex f2 2
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ALTER TABLE db_datadict.t1_my_tablex
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DROP COLUMN first_col;
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SELECT constraint_schema, constraint_name, table_schema,
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table_name, column_name, ordinal_position
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FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY constraint_schema, constraint_name, table_schema,
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table_name, ordinal_position;
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constraint_schema constraint_name table_schema table_name column_name ordinal_position
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db_datadict my_idx db_datadict t1_my_tablex f4 1
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db_datadict PRIMARY db_datadict t1_my_tablex f2 1
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SELECT table_name, column_name
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FROM information_schema.key_column_usage
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WHERE table_name = 't1_my_tablex'
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ORDER BY table_name, column_name;
|
|
table_name column_name
|
|
t1_my_tablex f2
|
|
t1_my_tablex f4
|
|
DROP TABLE db_datadict.t1_my_tablex;
|
|
SELECT table_name, column_name
|
|
FROM information_schema.key_column_usage
|
|
WHERE table_name = 't1_my_tablex';
|
|
table_name column_name
|
|
SELECT table_name FROM information_schema.key_column_usage
|
|
WHERE table_name = 't1_my_tablex';
|
|
table_name
|
|
CREATE TABLE db_datadict.t1_my_tablex
|
|
ENGINE = <engine_type> AS
|
|
SELECT 1 AS f1;
|
|
SELECT table_name FROM information_schema.key_column_usage
|
|
WHERE table_name = 't1_my_tablex';
|
|
table_name
|
|
ALTER TABLE db_datadict.t1_my_tablex ADD PRIMARY KEY(f1);
|
|
SELECT table_name FROM information_schema.key_column_usage
|
|
WHERE table_name = 't1_my_tablex';
|
|
table_name
|
|
t1_my_tablex
|
|
SELECT table_name FROM information_schema.key_column_usage
|
|
WHERE table_name = 't1_my_tablex';
|
|
table_name
|
|
t1_my_tablex
|
|
DROP DATABASE db_datadict;
|
|
SELECT table_name FROM information_schema.key_column_usage
|
|
WHERE table_name = 't1_my_tablex';
|
|
table_name
|
|
########################################################################
|
|
# Testcases 3.2.1.3-3.2.1.5 + 3.2.1.8-3.2.1.12: INSERT/UPDATE/DELETE and
|
|
# DDL on INFORMATION_SCHEMA table are not supported
|
|
########################################################################
|
|
DROP DATABASE IF EXISTS db_datadict;
|
|
DROP TABLE IF EXISTS db_datadict.t1;
|
|
CREATE DATABASE db_datadict;
|
|
CREATE TABLE db_datadict.t1 (f1 BIGINT)
|
|
ENGINE = <engine_type>;
|
|
INSERT INTO information_schema.key_column_usage
|
|
(constraint_schema, constraint_name, table_name)
|
|
VALUES ( 'mysql', 'primary', 'db');
|
|
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
|
|
INSERT INTO information_schema.key_column_usage
|
|
SELECT * FROM information_schema.key_column_usage;
|
|
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
|
|
UPDATE information_schema.key_column_usage
|
|
SET table_name = 'db1' WHERE constraint_name = 'primary';
|
|
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
|
|
DELETE FROM information_schema.key_column_usage WHERE table_name = 't1';
|
|
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
|
|
TRUNCATE information_schema.key_column_usage;
|
|
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
|
|
CREATE INDEX i3 ON information_schema.key_column_usage(table_name);
|
|
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
|
|
ALTER TABLE information_schema.key_column_usage ADD f1 INT;
|
|
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
|
|
DROP TABLE information_schema.key_column_usage;
|
|
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
|
|
ALTER TABLE information_schema.key_column_usage
|
|
RENAME db_datadict.key_column_usage;
|
|
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
|
|
ALTER TABLE information_schema.key_column_usage
|
|
RENAME information_schema.xkey_column_usage;
|
|
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
|
|
DROP TABLE db_datadict.t1;
|
|
DROP DATABASE db_datadict;
|