# suite/funcs_1/t/is_statistics.test
#
# Check the layout of information_schema.statistics and the impact of
# CREATE/ALTER/DROP TABLE/VIEW/SCHEMA ... 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 = STATISTICS;

# The table INFORMATION_SCHEMA.STATISTICS 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 3.2.14.1: INFORMATION_SCHEMA.STATISTICS layout
--echo #########################################################################
# Ensure that the INFORMATION_SCHEMA.STATISTICS table has the following columns,
# in the following order:
#
# TABLE_CATALOG (always shows NULL),
# TABLE_SCHEMA (shows the database, or schema, in which a table indexed by
#       an accessible index resides),
# TABLE_NAME (shows the name of  the indexed table),
# NON_UNIQUE (shows whether the index may contain duplicate values;
#       0 if it cannot, 1 if it can),
# INDEX_SCHEMA (shows the database, or schema, in which an accessible
#       index resides),
# INDEX_NAME (shows the name of an index which the current user may access),
# SEQ_IN_INDEX (shows the ordinal position of an indexed column within
#       the index),
# COLUMN_NAME (shows the name of a column that comprises some, or all, of an
#       index key),
# COLLATION (shows how the column is sorted in the index; either A for ascending
#       or NULL for unsorted columns),
# CARDINALITY (shows the number of unique values in the index),
# SUB_PART (shows the number of indexed characters if the index is
#       a prefix index),
# PACKED (shows how the index key is packed),
# NULLABLE (shows whether the index column may contain NULL values),
# INDEX_TYPE (shows the index type; either BTREE, FULLTEXT, HASH or RTREE),
# COMMENT (shows a comment on the index, if any).
#
--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.statistics is in is_columns_is.test.

# Show that TABLE_CATALOG is always NULL.
SELECT table_catalog, table_schema, table_name, index_schema, index_name
FROM information_schema.statistics WHERE table_catalog IS NOT NULL;


--echo ####################################################################################
--echo # Testcase 3.2.14.2 + 3.2.14.3: INFORMATION_SCHEMA.STATISTICS accessible information
--echo ####################################################################################
# 3.2.14.2 Ensure that the table shows the relevant information on every index
#          which the current user or PUBLIC may access (usually because
#          privileges on the indexed table have been granted).
# 3.2.14.3 Ensure that the table does not show any information on any indexes
#          which the current user and PUBLIC may not access.
#
# Note: Check of content within information_schema.statistics about
#       database            is in
#       mysql               is_statistics_mysql.test
#       information_schema  is_statistics_is.test
#
--disable_warnings
DROP DATABASE IF EXISTS db_datadict;
DROP DATABASE IF EXISTS db_datadict_2;
--enable_warnings
CREATE DATABASE db_datadict;
CREATE DATABASE db_datadict_2;

--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 $engine_type <engine_type>
eval
CREATE TABLE db_datadict.t1
   (f1 INT NOT NULL, PRIMARY KEY(f1), f2 INT, INDEX f2_ind(f2))
ENGINE = $engine_type;
--replace_result $engine_type <engine_type>
eval
CREATE TABLE db_datadict.t2
   (f1 INT NOT NULL, PRIMARY KEY(f1), f2 INT, INDEX f2_ind(f2))
ENGINE = $engine_type;

eval
CREATE TABLE db_datadict_2.t3
   (f1 INT NOT NULL, f2 INT, f5 DATE,
    PRIMARY KEY(f1), INDEX f2f1_ind(f2,f1), UNIQUE(f5))
ENGINE = $engine_type;
eval
CREATE TABLE db_datadict_2.t4
   (f1 INT NOT NULL, PRIMARY KEY(f1), f2 INT, INDEX f2_ind(f2))
ENGINE = $engine_type;

let $my_select = SELECT * FROM information_schema.statistics
WHERE table_schema LIKE 'db_datadict%'
ORDER BY table_schema,table_name,index_name,seq_in_index,column_name;
let $my_show1 = SHOW GRANTS FOR 'testuser1'@'localhost';
let $my_show2 = SHOW GRANTS FOR 'testuser2'@'localhost';
eval $my_select;
eval $my_show1;
eval $my_show2;

--echo # Establish connection testuser1 (user=testuser1)
--replace_result $MASTER_MYPORT MYSQL_PORT $MASTER_MYSOCK MYSQL_SOCK
connect (testuser1, localhost, testuser1, , test);
# nothing visible for testuser1
eval $my_select;
eval $my_show1;
--error ER_DBACCESS_DENIED_ERROR
eval $my_show2;

--echo # Establish connection testuser2 (user=testuser2)
--replace_result $MASTER_MYPORT MYSQL_PORT $MASTER_MYSOCK MYSQL_SOCK
connect (testuser2, localhost, testuser2, , test);
# nothing visible for testuser2
eval $my_select;
--error ER_DBACCESS_DENIED_ERROR
eval $my_show1;
eval $my_show2;

--echo # Switch to connection default
connection default;
GRANT SELECT ON db_datadict.t1 TO 'testuser1'@'localhost' WITH GRANT OPTION;
GRANT SELECT(f1,f5) ON db_datadict_2.t3 TO 'testuser1'@'localhost';
eval $my_select;
eval $my_show1;
eval $my_show2;

--echo # Switch to connection testuser1
connection testuser1;
eval $my_select;
eval $my_show1;
--error ER_DBACCESS_DENIED_ERROR
eval $my_show2;

--echo # Switch to connection testuser2
connection testuser2;
eval $my_select;
--error ER_DBACCESS_DENIED_ERROR
eval $my_show1;
eval $my_show2;

--echo # Switch to connection default
connection default;
REVOKE SELECT,GRANT OPTION ON db_datadict.t1 FROM 'testuser1'@'localhost';
eval $my_show1;

--echo # Switch to connection testuser1
# nothing visible for testuser1
connection testuser1;
eval $my_select;
eval $my_show1;

# Cleanup
--echo # Switch to connection default and close connections testuser1, testuser2
connection default;
disconnect testuser1;
disconnect testuser2;
DROP USER 'testuser1'@'localhost';
DROP USER 'testuser2'@'localhost';
DROP DATABASE db_datadict;
DROP DATABASE db_datadict_2;


--echo #########################################################################
--echo # 3.2.1.13+3.2.1.14+3.2.1.15: INFORMATION_SCHEMA.STATISTICS 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;
--replace_result $other_engine_type <other_engine_type>
eval
CREATE TABLE test.t1_1 (f1 BIGINT,
   f2 TEXT, f2x TEXT, f3 CHAR(10), f3x CHAR(10), f4 BIGINT, f4x BIGINT,
   f5 POINT, f5x POINT NOT NULL)
DEFAULT CHARACTER SET latin1 COLLATE latin1_swedish_ci
ENGINE = $other_engine_type;
--replace_result $engine_type <engine_type>
eval
CREATE TABLE test.t1_2 (f1 BIGINT, f2 BIGINT)
ENGINE = $engine_type;

# Tables without primary key or index do not show up
# in information_schema.statistics.
SELECT table_name FROM information_schema.statistics
WHERE table_name LIKE 't1_%';
# Check ADD PRIMARY KEY (two columns)
ALTER TABLE test.t1_1 ADD PRIMARY KEY (f1,f3);
SELECT * FROM information_schema.statistics
WHERE table_name LIKE 't1_%'
ORDER BY table_schema,table_name,index_name,seq_in_index,column_name;
# Check DROP PRIMARY KEY
ALTER TABLE test.t1_1 DROP PRIMARY KEY;
SELECT table_name FROM information_schema.statistics
WHERE table_name LIKE 't1_%';
# Check ADD PRIMARY KEY (one column)
ALTER TABLE test.t1_1 ADD PRIMARY KEY (f1);
SELECT * FROM information_schema.statistics
WHERE table_name LIKE 't1_%';
# Some variations on index definitions
# 1. No name assigned, one column
ALTER TABLE test.t1_1 ADD INDEX (f4);
# 2. Name assigned, two columns
CREATE        INDEX f3_f1     ON test.t1_1 (f3,f1);
# 3. Unique index
CREATE UNIQUE INDEX f4x_uni   ON test.t1_1 (f4x);
# 4. Index using HASH
CREATE        INDEX f2_hash USING HASH ON test.t1_2 (f2);
# 5. Index with comment (feature introduced in 5.2)
--error ER_PARSE_ERROR
CREATE        INDEX f1_idx    ON test.t1_2 (f1) COMMENT = 'COMMENT';
# 6. NOT NULL
CREATE        INDEX not_null  ON test.t1_1 (f3x);
# 7. Prefix index
CREATE        INDEX f2_prefix ON test.t1_1 (f2(20));
#
SELECT * FROM information_schema.statistics
WHERE table_name LIKE 't1_%' AND index_name <> 'PRIMARY'
ORDER BY table_schema,table_name,index_name,seq_in_index,column_name;
--horizontal_results
DROP TABLE test.t1_2;
#
# Check modification of TABLE_NAME
SELECT DISTINCT table_name FROM information_schema.statistics
WHERE table_name = 't1_1';
RENAME TABLE test.t1_1 TO test.t1_1x;
SELECT DISTINCT table_name FROM information_schema.statistics
WHERE table_name = 't1_1x';
#
# Check modification of TABLE_SCHEMA
SELECT DISTINCT table_schema,table_name FROM information_schema.statistics
WHERE table_name LIKE 't1_1%';
RENAME TABLE test.t1_1x TO db_datadict.t1_1x;
SELECT DISTINCT table_schema,table_name FROM information_schema.statistics
WHERE table_name LIKE 't1_1%';
#
# Check impact of DROP TABLE
SELECT DISTINCT table_name FROM information_schema.statistics
WHERE table_name = 't1_1x';
DROP TABLE db_datadict.t1_1x;
SELECT DISTINCT table_name FROM information_schema.statistics
WHERE table_name = 't1_1x';
#
# Check a temporary table (not visible)
--replace_result $engine_type <engine_type>
eval
CREATE TEMPORARY TABLE test.t1_1x (PRIMARY KEY(f1,f2))
ENGINE = $engine_type
   AS SELECT 1 AS f1, 2 AS f2;
--vertical_results
SELECT * FROM information_schema.statistics
WHERE table_name = 't1_1x';
--horizontal_results
DROP TEMPORARY TABLE test.t1_1x;
#
# Check impact of DROP SCHEMA
--replace_result $engine_type <engine_type>
eval
CREATE TABLE db_datadict.t1_1x (PRIMARY KEY(f1))
ENGINE = $engine_type
   AS SELECT 1 AS f1, 2 AS f2;
SELECT table_name FROM information_schema.statistics
WHERE table_name = 't1_1x';
DROP DATABASE db_datadict;
SELECT table_name FROM information_schema.statistics
WHERE table_name = 't1_1x';


--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 tables 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;
--enable_warnings
CREATE DATABASE db_datadict;
--replace_result $engine_type <engine_type>
eval
CREATE TABLE db_datadict.t1 (f1 BIGINT)
ENGINE = $engine_type;

--error ER_DBACCESS_DENIED_ERROR
INSERT INTO information_schema.statistics
SELECT * FROM information_schema.statistics;

--error ER_DBACCESS_DENIED_ERROR
UPDATE information_schema.statistics SET table_schema = 'test'
WHERE table_name = 't1';

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

--error ER_DBACCESS_DENIED_ERROR
CREATE INDEX my_idx_on_statistics
ON information_schema.statistics(table_schema);

--error ER_DBACCESS_DENIED_ERROR
ALTER TABLE information_schema.statistics DROP PRIMARY KEY;
--error ER_DBACCESS_DENIED_ERROR
ALTER TABLE information_schema.statistics ADD f1 INT;

--error ER_DBACCESS_DENIED_ERROR
DROP TABLE information_schema.statistics;

--error ER_DBACCESS_DENIED_ERROR
ALTER TABLE information_schema.statistics RENAME db_datadict.statistics;
--error ER_DBACCESS_DENIED_ERROR
ALTER TABLE information_schema.statistics RENAME information_schema.xstatistics;

# Cleanup
DROP DATABASE db_datadict;