#
# The test is to run IS.TABLES query using two mode of reading
# dynamic table statistics.
#
# Case 1. Using IS.TABLES query definition that joins with
#         mysql.tables.
#
# Case 2. Using IS.TABLES query definition that invokes UDF
#         that read stats.
#
# Approach 2) deals with opening the table while query execution for
# non-InnoDB tables. And for InnoDB tables, the UDF's do not do
# complete open_table() and invoke new handlerton API,
# handlerton::get_table_statistics().
#
CREATE TABLE t1 (f0 INT KEY AUTO_INCREMENT, f1 INT, f2 INT);
CREATE TABLE t2 (f0 INT KEY AUTO_INCREMENT, f1 INT, f2 INT) ENGINE=MYISAM;
CREATE TABLE t3 (f0 INT KEY AUTO_INCREMENT, f1 INT, f2 INT, KEY (f0), KEY (f1), KEY (f1, f2));

INSERT INTO t1 (f1, f2) VALUES (1,1 ),(2,2),(3,3),(4,4);
INSERT INTO t1 (f1, f2) SELECT f1, f2 FROM t1;
INSERT INTO t1 (f1, f2) SELECT f1, f2 FROM t1;
INSERT INTO t1 (f1, f2) SELECT f1, f2 FROM t1;

INSERT INTO t2 (f1, f2) SELECT f1, f2 FROM t1;
INSERT INTO t3 (f1, f2) SELECT f1, f2 FROM t1;

DELETE FROM t1 WHERE f1=1;
DELETE FROM t2 WHERE f1=1;

ANALYZE TABLE t1;
ANALYZE TABLE t2;
ANALYZE TABLE t3;

SELECT COUNT(*) FROM t1;
SELECT COUNT(*) FROM t2;
SELECT COUNT(*) FROM t3;

--echo Case 1: IS query uses mysql.table_stats to read dynamic table statistics
SET SESSION information_schema_stats_expiry=default;

--replace_column 9 #
SELECT table_rows, avg_row_length, data_length, max_data_length, index_length,
       data_free, auto_increment, checksum, update_time, check_time
FROM information_schema.tables WHERE table_name in ('t1', 't2');

SELECT * FROM information_schema.statistics WHERE table_name='t3'
ORDER BY index_name, seq_in_index;

--echo Case 2: IS query uses UDF's to read dynamic table statistics
SET SESSION information_schema_stats_expiry=0;

--replace_column 9 #
SELECT table_rows, avg_row_length, data_length, max_data_length, index_length,
       data_free, auto_increment, checksum, update_time, check_time
FROM information_schema.tables WHERE table_name in ('t1', 't2');

SELECT * FROM information_schema.statistics WHERE table_name='t3'
ORDER BY index_name, seq_in_index;

SET SESSION information_schema_stats_expiry=default;

DROP TABLE t1;
DROP TABLE t2;
DROP TABLE t3;


# 
# Bug#23209797 SEGMENTATION FAULT WHILE GETTING GET_SCHEMA_TABLES_RESULT()
# Make sure information_schema.tmp_tables_* tables are not
# directly accessible to users, except for SHOW COMMANDS.
#

CREATE TEMPORARY TABLE t1 (f1 int, f2 int primary key, UNIQUE KEY (f1));
SHOW COLUMNS FROM t1;
SHOW INDEXES FROM t1;
--error ER_UNKNOWN_TABLE
SELECT * FROM information_schema.tmp_tables_columns;
--error ER_UNKNOWN_TABLE
SELECT * FROM information_schema.tmp_tables_keys;
DROP TEMPORARY TABLE t1;


#
# Bug#23210930 ASSERTION `THD->GET_TRANSACTION()->IS_EMPTY(TRANSACTION_CTX::STMT)' FAILED.
# Make sure the INFORMATION_SCHEMA system views are usable in
# prepared statement.
#

CREATE TABLE t1 (f1 int);
SELECT TABLE_SCHEMA, TABLE_NAME, TABLE_TYPE
  FROM information_schema.tables WHERE table_name='t1';

LOCK TABLE t1 READ;
SELECT TABLE_SCHEMA, TABLE_NAME, TABLE_TYPE
   FROM information_schema.tables WHERE table_name='t1';
PREPARE st2 FROM
  "SELECT TABLE_SCHEMA, TABLE_NAME, TABLE_TYPE FROM
   information_schema.tables WHERE table_name='t1'";
EXECUTE st2;
DEALLOCATE PREPARE st2;
UNLOCK TABLES;

DROP TABLE t1;

#
# Bug #28165060   MYSQL IS TRYING TO PERFORM A CONSISTENT READ BUT THE READ
# VIEW IS NOT ASSIGNED!
#
#
CREATE DATABASE abc;
CREATE TABLE abc.memorytable (id INT NOT NULL) ENGINE=MEMORY;
--source include/restart_mysqld.inc
--disable_result_log
# The following command would cause a assert, without the fix.
SELECT * FROM information_schema.TABLES WHERE TABLE_SCHEMA = 'abc';
--enable_result_log
DROP DATABASE abc;

--source suite/xengine/include/check_xengine_log_error.inc