# 
# Basic ALTER TABLE statements.
#
# USAGE of table options in ALTER statements
#   is covered in tbl_standard_opts and tbl_opt*.tests.
#
# Index operations are covered in index* tests.
#
# ALTER ONLINE syntax is covered in alter_online_table.test
# ALTER OFFLINE is not covered as it is not supported, as of 5.5.23
#
# ALTER TABLE ... DISCARD|IMPORT TABLESPACE is covered in alter_tablespace.test
#

--source have_engine.inc

--disable_warnings
DROP TABLE IF EXISTS t1, t2;
--enable_warnings

--let $create_definition = a $int_col, c $char_col
--source create_table.inc
INSERT INTO t1 (a,c) VALUES (1,'a'),(5,'z');

# Column operations

--let $alter_definition = ADD COLUMN b $int_col
--source alter_table.inc
if ($mysql_errname)
{
  --source unexpected_result.inc
}

--source mask_engine.inc
SHOW CREATE TABLE t1;

--let $alter_definition = ALTER COLUMN a SET DEFAULT '0'
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;

--let $alter_definition = ALTER a DROP DEFAULT
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;

--let $alter_definition = CHANGE COLUMN b b1 $char_col FIRST
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;

--let $alter_definition = CHANGE b1 b $int_col AFTER c
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;

--let $alter_definition = CHANGE b b $char_col
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;

--let $alter_definition = MODIFY COLUMN b $int_col
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;

--let $alter_definition = MODIFY COLUMN b $char_col FIRST
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;

--let $alter_definition = MODIFY COLUMN b $int_col AFTER a
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;

--let $alter_definition = DROP COLUMN b
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;


# Rename table

--let $rename_to = t2
--source alter_table.inc
--let $error_codes = ER_NO_SUCH_TABLE
SHOW CREATE TABLE t1;
--source check_errors.inc
if ($mysql_errname != 'ER_NO_SUCH_TABLE')
{
  --let $functionality = ALTER TABLE
  --source unexpected_result.inc
  DROP TABLE t1;
}
if ($mysql_errname == ER_NO_SUCH_TABLE)
{
  --source mask_engine.inc
  SHOW CREATE TABLE t2;
  DROP TABLE t2;
}

# ORDER BY
--let $create_definition = a $int_col, b $int_col
--source create_table.inc
INSERT INTO t1 (a,b) VALUES (1,5),(2,2),(4,3);
--source mask_engine.inc
SHOW CREATE TABLE t1;

--let $alter_definition = ORDER BY b ASC, a DESC
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;
SELECT a,b FROM t1;
DROP TABLE t1;

# Character set, collate

--let $table_options = CHARACTER SET latin1 COLLATE latin1_general_cs
--let $create_definition = a $int_col, b $char_col, c $char_col
--source create_table.inc
INSERT INTO t1 (a,b,c) VALUES (5,'z','t');

--source mask_engine.inc
SHOW CREATE TABLE t1;

--let $alter_definition = CONVERT TO CHARACTER SET utf8
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;

--let $alter_definition = DEFAULT CHARACTER SET = latin1 COLLATE latin1_general_ci
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;

# A 'null' ALTER operation

--let $alter_definition = FORCE
--source alter_table.inc
--source mask_engine.inc
SHOW CREATE TABLE t1;

# Cleanup 
DROP TABLE t1;

--source cleanup_engine.inc

