# suite/funcs_1/t/is_columns.test
#
# Check the layout of information_schema.columns and the impact of
# CREATE/ALTER/DROP TABLE/VIEW/SCHEMA/COLUMN ... on its content.
#
# Note:
#    This test is not intended
#    - to show information about the all time existing tables
#      within the databases information_schema and mysql
#    - for checking storage engine properties
#      Therefore please do not alter $engine_type and $other_engine_type.
#
# Author:
# 2008-01-23 mleich WL#4203 Reorganize and fix the data dictionary tests of
#                           testsuite funcs_1
#                   Create this script based on older scripts and new code.
#

# This test cannot be used for the embedded server because we check here
# privileges.
--source include/not_embedded.inc

let $engine_type       = MEMORY;
let $other_engine_type = MyISAM;

let $is_table = COLUMNS;

# The table INFORMATION_SCHEMA.COLUMNS must exist
eval SHOW TABLES FROM information_schema LIKE '$is_table';

--echo #######################################################################
--echo # Testcase 3.2.1.1: INFORMATION_SCHEMA tables can be queried via SELECT
--echo #######################################################################
# Ensure that every INFORMATION_SCHEMA table can be queried with a SELECT
# statement, just as if it were an ordinary user-defined table.
#
--source suite/funcs_1/datadict/is_table_query.inc


--echo #########################################################################
--echo # Testcase 3.2.6.1: INFORMATION_SCHEMA.COLUMNS layout
--echo #########################################################################
# Ensure that the INFORMATION_SCHEMA.COLUMNS table has the following columns,
# in the following order:
#
# TABLE_CATALOG (always shows NULL),
# TABLE_SCHEMA (shows the name of the database, or schema, in which an
#       accessible table resides),
# TABLE_NAME (shows the name of an accessible table),
# COLUMN_NAME (shows the name of a column within that table),
# ORDINAL_POSITION (shows the ordinal position of that column in that table),
# COLUMN_DEFAULT (shows the column's default value),
# IS_NULLABLE (shows whether the column may accept NULL values),
# DATA_TYPE (shows the column's defined data type; keyword only),
# CHARACTER_MAXIMUM_LENGTH (shows, for a string column, the column's defined
#       maximum length in characters; otherwise NULL),
# CHARACTER_OCTET_LENGTH (shows, for a string column, the column's defined
#       maximum length in octets; otherwise NULL),
# NUMERIC_PRECISION (shows, for a numeric column, the column's or data type's
#       defined precision; otherwise NULL),
# NUMERIC_SCALE (shows, for a numeric column, the column's or data type's
#       defined scale; otherwise NULL),
# CHARACTER_SET_NAME (shows, for a character string column, the column's default
#       character set; otherwise NULL),
# COLLATION_NAME (shows, for a character string column, the column's default
#       collation; otherwise NULL),
# COLUMN_TYPE (shows the column's complete, defined data type),
# COLUMN_KEY (shows whether the column is indexed; possible values are PRI if
#       the column is part of a PRIMARY KEY, UNI if the column is part of a
#       UNIQUE key, MUL if the column is part of an index key that allows
#       duplicates),
# EXTRA (shows any additional column definition information, e.g. whether the
#       column was defined with the AUTO_INCREMENT attribute),
# PRIVILEGES (shows the privileges available to the user on the column),
# COLUMN_COMMENT (shows the comment, if any, defined for the comment;
#       otherwise NULL).
#
--source suite/funcs_1/datadict/datadict_bug_12777.inc
eval DESCRIBE          information_schema.$is_table;
--source suite/funcs_1/datadict/datadict_bug_12777.inc
eval SHOW CREATE TABLE information_schema.$is_table;
--source suite/funcs_1/datadict/datadict_bug_12777.inc
eval SHOW COLUMNS FROM information_schema.$is_table;

# Note: Retrieval of information within information_schema.columns about
#       information_schema.columns is in is_columns_is.test.

# Show that TABLE_CATALOG is always NULL.
SELECT table_catalog, table_schema, table_name, column_name
FROM information_schema.columns WHERE table_catalog IS NOT NULL;


--echo ###############################################################################
--echo # Testcase 3.2.6.2 + 3.2.6.3: INFORMATION_SCHEMA.COLUMNS accessible information
--echo ###############################################################################
# 3.2.6.2:  Ensure that the table shows the relevant information on the columns
#           of every table that is accessible to the current user or to PUBLIC.
# 3.2.6.3:  Ensure that the table does not show any information on the columns
#           of any table which is not accessible to the current user or PUBLIC.
#
# Note: Check of content within information_schema.columns about
#       databases           is in
#       mysql               is_columns_mysql.test
#       information_schema  is_columns_is.test
#       test%               is_columns_<engine>.test
#
--disable_warnings
DROP DATABASE IF EXISTS db_datadict;
--enable_warnings
CREATE DATABASE db_datadict;

--error 0,ER_CANNOT_USER
DROP   USER 'testuser1'@'localhost';
CREATE USER 'testuser1'@'localhost';
--error 0,ER_CANNOT_USER
DROP   USER 'testuser2'@'localhost';
CREATE USER 'testuser2'@'localhost';

--replace_result $other_engine_type <other_engine_type>
eval
CREATE TABLE db_datadict.t1
   (f1 CHAR(10), f2 TEXT, f3 DATE, f4 INT AUTO_INCREMENT,
    UNIQUE INDEX MUL_IDX(f1,f3), PRIMARY KEY (f4))
ENGINE = $other_engine_type;
CREATE VIEW db_datadict.v1 AS SELECT 1 AS f1, 1 AS f2;
GRANT SELECT(f1, f2) ON db_datadict.t1 TO 'testuser1'@'localhost';
GRANT SELECT(f2)     ON db_datadict.v1 TO 'testuser1'@'localhost';

--replace_result $other_engine_type <other_engine_type>
eval
CREATE TABLE db_datadict.t2
(f1 CHAR(10), f2 TEXT, f3 DATE, f4 INT, PRIMARY KEY (f1,f4))
ENGINE = $other_engine_type;
GRANT INSERT(f1, f2) ON db_datadict.t2 TO 'testuser2'@'localhost';

let $my_select= SELECT * FROM information_schema.columns
             WHERE table_schema = 'db_datadict'
ORDER BY table_schema, table_name, ordinal_position;
let $my_show1 = SHOW COLUMNS FROM db_datadict.t1;
let $my_show2 = SHOW COLUMNS FROM db_datadict.t2;
let $my_show3 = SHOW COLUMNS FROM db_datadict.v1;

# Point of view of user root.
--source suite/funcs_1/datadict/datadict_bug_12777.inc
eval $my_select;
eval $my_show1;
eval $my_show2;
eval $my_show3;

--echo # Establish connection testuser1 (user=testuser1)
--replace_result $MASTER_MYPORT MYSQL_PORT $MASTER_MYSOCK MYSQL_SOCK
connect (testuser1, localhost, testuser1, , db_datadict);
--source suite/funcs_1/datadict/datadict_bug_12777.inc
eval $my_select;
eval $my_show1;
--error ER_TABLEACCESS_DENIED_ERROR
eval $my_show2;
eval $my_show3;

--echo # Establish connection testuser2 (user=testuser2)
--replace_result $MASTER_MYPORT MYSQL_PORT $MASTER_MYSOCK MYSQL_SOCK
connect (testuser2, localhost, testuser2, , db_datadict);
--source suite/funcs_1/datadict/datadict_bug_12777.inc
eval $my_select;
--error ER_TABLEACCESS_DENIED_ERROR
eval $my_show1;
eval $my_show2;
--error ER_TABLEACCESS_DENIED_ERROR
eval $my_show3;

--echo # Switch to connection default and close connections testuser1, testuser2
connection default;
disconnect testuser1;
disconnect testuser2;

# Cleanup
DROP USER 'testuser1'@'localhost';
DROP USER 'testuser2'@'localhost';
DROP DATABASE IF EXISTS db_datadict;


--echo ###############################################################################
--echo # Testcase 3.2.1.13+3.2.1.14+3.2.1.15: INFORMATION_SCHEMA.COLUMNS modifications
--echo ###############################################################################
# 3.2.1.13: Ensure that the creation of any new database object (e.g. table or
#           column) automatically inserts all relevant information on that
#           object into every appropriate INFORMATION_SCHEMA table.
# 3.2.1.14: Ensure that the alteration of any existing database object
#           automatically updates all relevant information on that object in
#           every appropriate INFORMATION_SCHEMA table.
# 3.2.1.15: Ensure that the dropping of any existing database object
#           automatically deletes all relevant information on that object from
#           every appropriate INFORMATION_SCHEMA table.
#
--disable_warnings
DROP TABLE IF EXISTS test.t1_my_table;
DROP DATABASE IF EXISTS db_datadict;
--enable_warnings
CREATE DATABASE db_datadict;

SELECT table_name FROM information_schema.columns
WHERE table_name LIKE 't1_my_table%';
--replace_result $engine_type <engine_type>
eval
CREATE TABLE test.t1_my_table (f1 CHAR(12))
DEFAULT CHARACTER SET latin1 COLLATE latin1_swedish_ci
ENGINE = $engine_type;
# Settings used in CREATE TABLE must be visible in information_schema.columns.
--vertical_results
SELECT * FROM information_schema.columns
WHERE table_name = 't1_my_table';
--horizontal_results
#
# Check modification of TABLE_NAME
SELECT table_name FROM information_schema.columns
WHERE table_name LIKE 't1_my_table%';
RENAME TABLE test.t1_my_table TO test.t1_my_tablex;
SELECT table_name FROM information_schema.columns
WHERE table_name LIKE 't1_my_table%';
#
# Check modification of TABLE_SCHEMA
SELECT table_schema,table_name FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
RENAME TABLE test.t1_my_tablex TO db_datadict.t1_my_tablex;
SELECT table_schema,table_name FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check modification of COLUMN_NAME
SELECT table_name, column_name FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
ALTER TABLE db_datadict.t1_my_tablex CHANGE COLUMN f1 first_col CHAR(12);
SELECT table_name, column_name FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check modification of COLUMN size
SELECT table_name, column_name, character_maximum_length,
       character_octet_length, column_type
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
ALTER TABLE db_datadict.t1_my_tablex
MODIFY COLUMN first_col CHAR(20);
SELECT table_name, column_name, character_maximum_length,
       character_octet_length, column_type
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check modification of COLUMN type
SELECT table_name, column_name, character_maximum_length,
       character_octet_length, column_type
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
ALTER TABLE db_datadict.t1_my_tablex
MODIFY COLUMN first_col VARCHAR(20);
SELECT table_name, column_name, character_maximum_length,
       character_octet_length, column_type
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check modify COLUMN DEFAULT
SELECT table_name, column_name, column_default
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
ALTER TABLE db_datadict.t1_my_tablex
MODIFY COLUMN first_col CHAR(10) DEFAULT 'hello';
SELECT table_name, column_name, column_default
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check modify IS_NULLABLE
SELECT table_name, column_name, is_nullable
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
ALTER TABLE db_datadict.t1_my_tablex
MODIFY COLUMN first_col CHAR(10) NOT NULL;
SELECT table_name, column_name, is_nullable
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check modify COLLATION
SELECT table_name, column_name, collation_name
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
ALTER TABLE db_datadict.t1_my_tablex
MODIFY COLUMN first_col CHAR(10) COLLATE 'latin1_general_cs';
SELECT table_name, column_name, collation_name
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check modify CHARACTER SET
SELECT table_name, column_name, character_maximum_length,
       character_octet_length, character_set_name
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
ALTER TABLE db_datadict.t1_my_tablex
MODIFY COLUMN first_col CHAR(10) CHARACTER SET utf8;
SELECT table_name, column_name, character_maximum_length,
       character_octet_length, character_set_name
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check modify COLUMN_COMMENT
SELECT table_name, column_name, column_comment
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
ALTER TABLE db_datadict.t1_my_tablex
MODIFY COLUMN first_col CHAR(10) COMMENT 'Hello';
SELECT table_name, column_name, column_comment
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check ADD COLUMN
SELECT table_name, column_name
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
ALTER TABLE db_datadict.t1_my_tablex
ADD COLUMN second_col CHAR(10);
SELECT table_name, column_name
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check switch ordinal position of column
SELECT table_name, column_name, ordinal_position
FROM information_schema.columns
WHERE table_name = 't1_my_tablex'
ORDER BY table_name, column_name;
ALTER TABLE db_datadict.t1_my_tablex
MODIFY COLUMN second_col CHAR(10) FIRST;
SELECT table_name, column_name, ordinal_position
FROM information_schema.columns
WHERE table_name = 't1_my_tablex'
ORDER BY table_name, column_name;
#
# Check DROP COLUMN
SELECT table_name, column_name
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
ALTER TABLE db_datadict.t1_my_tablex
DROP COLUMN first_col;
SELECT table_name, column_name
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check set COLUMN UNIQUE
SELECT table_name, column_name, column_key
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
ALTER TABLE db_datadict.t1_my_tablex
ADD UNIQUE INDEX IDX(second_col);
SELECT table_name, column_name, column_key
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check impact of DROP TABLE
SELECT table_name, column_name
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
DROP TABLE db_datadict.t1_my_tablex;
SELECT table_name, column_name
FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check a VIEW
CREATE VIEW test.t1_my_tablex
AS SELECT 1 AS "col1", 'A' collate latin1_german1_ci AS "col2";
--vertical_results
SELECT * FROM information_schema.columns
WHERE table_name = 't1_my_tablex'
ORDER BY table_name, column_name;
--horizontal_results
DROP VIEW test.t1_my_tablex;
SELECT table_name FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
#
# Check impact of DROP SCHEMA
--replace_result $engine_type <engine_type>
eval
CREATE TABLE db_datadict.t1_my_tablex
ENGINE = $engine_type AS
SELECT 1;
SELECT table_name FROM information_schema.columns
WHERE table_name = 't1_my_tablex';
DROP DATABASE db_datadict;
SELECT table_name FROM information_schema.columns
WHERE table_name = 't1_my_tablex';


--echo ########################################################################
--echo # Testcases 3.2.1.3-3.2.1.5 + 3.2.1.8-3.2.1.12: INSERT/UPDATE/DELETE and
--echo #           DDL on INFORMATION_SCHEMA table are not supported
--echo ########################################################################
# 3.2.1.3:  Ensure that no user may execute an INSERT statement on any
#           INFORMATION_SCHEMA table.
# 3.2.1.4:  Ensure that no user may execute an UPDATE statement on any
#           INFORMATION_SCHEMA table.
# 3.2.1.5:  Ensure that no user may execute a DELETE statement on any
#           INFORMATION_SCHEMA table.
# 3.2.1.8:  Ensure that no user may create an index on an
#           INFORMATION_SCHEMA table.
# 3.2.1.9:  Ensure that no user may alter the definition of an
#           INFORMATION_SCHEMA table.
# 3.2.1.10: Ensure that no user may drop an INFORMATION_SCHEMA table.
# 3.2.1.11: Ensure that no user may move an INFORMATION_SCHEMA table to any
#           other database.
# 3.2.1.12: Ensure that no user may directly add to, alter, or delete any data
#           in an INFORMATION_SCHEMA table.
#
--disable_warnings
DROP DATABASE IF EXISTS db_datadict;
DROP TABLE IF EXISTS test.t1;
--enable_warnings
CREATE DATABASE db_datadict;
CREATE TABLE test.t1 (f1 BIGINT);

--error ER_DBACCESS_DENIED_ERROR
INSERT INTO information_schema.columns (table_schema,table_name,column_name)
VALUES('test','t1', 'f2');
--error ER_DBACCESS_DENIED_ERROR
INSERT INTO information_schema.columns (table_schema,table_name,column_name)
VALUES('test','t2', 'f1');

--error ER_DBACCESS_DENIED_ERROR
UPDATE information_schema.columns SET table_name = 't4' WHERE table_name = 't1';

--error ER_DBACCESS_DENIED_ERROR
DELETE FROM information_schema.columns WHERE table_name = 't1';
--error ER_DBACCESS_DENIED_ERROR
TRUNCATE information_schema.columns;

--error ER_DBACCESS_DENIED_ERROR
CREATE INDEX i3 ON information_schema.columns(table_name);

--error ER_DBACCESS_DENIED_ERROR
ALTER TABLE information_schema.columns ADD f1 INT;

--error ER_DBACCESS_DENIED_ERROR
DROP TABLE information_schema.columns;

--error ER_DBACCESS_DENIED_ERROR
ALTER TABLE information_schema.columns RENAME db_datadict.columns;
--error ER_DBACCESS_DENIED_ERROR
ALTER TABLE information_schema.columns RENAME information_schema.xcolumns;

# Cleanup
DROP TABLE test.t1;
DROP DATABASE db_datadict;