--source include/have_innodb.inc
--source include/have_debug_sync.inc

let $innodb_metrics_select=
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';

call mtr.add_suppression("InnoDB: Warning: Small buffer pool size");
# these will be triggered by DISCARD TABLESPACE
call mtr.add_suppression("InnoDB: Error: table 'test/t1'");
call mtr.add_suppression("MySQL is trying to open a table handle but the .ibd file for");

# DISCARD TABLESPACE needs file-per-table
SET @global_innodb_file_per_table_orig = @@global.innodb_file_per_table;
SET GLOBAL innodb_file_per_table = on;

# Save the initial number of concurrent sessions.
--source include/count_sessions.inc

CREATE TABLE t1 (c1 INT PRIMARY KEY, c2 INT NOT NULL, c3 TEXT NOT NULL)
ENGINE = InnoDB;
INSERT INTO t1 VALUES (1,1,''), (2,2,''), (3,3,''), (4,4,''), (5,5,'');

SET GLOBAL innodb_monitor_enable = module_ddl;
eval $innodb_metrics_select;

SET DEBUG_SYNC = 'RESET';
SET DEBUG_SYNC = 'write_row_noreplace SIGNAL have_handle WAIT_FOR go_ahead';
--send
INSERT INTO t1 VALUES(1,2,3);

--echo # Establish session con1 (user=root)
connect (con1,localhost,root,,);
connection con1;

# This should block at the end because of the INSERT in connection default
# is holding a metadata lock.
SET DEBUG_SYNC = 'now WAIT_FOR have_handle';
SET lock_wait_timeout = 1;
--error ER_LOCK_WAIT_TIMEOUT
ALTER TABLE t1 ROW_FORMAT=REDUNDANT;
SET DEBUG_SYNC = 'now SIGNAL go_ahead';

--echo # session default
connection default;
--error ER_DUP_ENTRY
reap;
eval $innodb_metrics_select;

--echo # session con1
connection con1;
SET SESSION DEBUG = '+d,innodb_OOM_prepare_inplace_alter';
--error ER_OUT_OF_RESOURCES
ALTER TABLE t1 ROW_FORMAT=REDUNDANT, ALGORITHM=INPLACE, LOCK=NONE;
SET SESSION DEBUG = '-d,innodb_OOM_prepare_inplace_alter';
SET SESSION DEBUG = '+d,innodb_OOM_inplace_alter';
--error ER_OUT_OF_RESOURCES
ALTER TABLE t1 ROW_FORMAT=REDUNDANT, ALGORITHM=INPLACE, LOCK=NONE;
SET SESSION DEBUG = '-d,innodb_OOM_inplace_alter';
ALTER TABLE t1 ROW_FORMAT=REDUNDANT, ALGORITHM=INPLACE, LOCK=NONE;

--echo # session default
connection default;
SHOW CREATE TABLE t1;
# Insert a duplicate entry (4) for the upcoming UNIQUE INDEX(c2).
BEGIN;
INSERT INTO t1 VALUES(7,4,2);

--echo # session con1
connection con1;
# This DEBUG_SYNC should not kick in yet, because the duplicate key will be
# detected before we get a chance to apply the online log.
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL scanned WAIT_FOR insert_done';
# This will be a lock wait timeout on the meta-data lock,
# because the transaction inserting (7,4,2) is still active.
--error ER_LOCK_WAIT_TIMEOUT
ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE INDEX(c2);

--echo # session default
connection default;
COMMIT;

--echo # session con1
connection con1;
--error ER_DUP_ENTRY
ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE INDEX(c2);

--echo # session default
connection default;
DELETE FROM t1 WHERE c1 = 7;

--echo # session con1
connection con1;
ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE INDEX(c2), ROW_FORMAT=COMPACT,
LOCK = SHARED, ALGORITHM = INPLACE;

# The previous DEBUG_SYNC should be ignored, because an exclusive lock
# has been requested and the online log is not being allocated.
ALTER TABLE t1 ADD UNIQUE INDEX(c2),
LOCK = EXCLUSIVE, ALGORITHM = INPLACE;

SHOW CREATE TABLE t1;
# We do not support plain DROP_PK_INDEX without ADD_PK_INDEX.
--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
ALTER TABLE t1 DROP INDEX c2, ALGORITHM = INPLACE;
SHOW CREATE TABLE t1;
# Now the previous DEBUG_SYNC should kick in.
--send
ALTER TABLE t1 DROP INDEX c2, ADD PRIMARY KEY(c1);

--echo # session default
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR scanned';
eval $innodb_metrics_select;

# Insert a duplicate entry (4) for the already started UNIQUE INDEX(c1).
BEGIN;
INSERT INTO t1 VALUES(4,7,2);
SET DEBUG_SYNC = 'now SIGNAL insert_done';

--echo # session con1
connection con1;
# Because the modification log will be applied in order and we did
# not roll back before the log apply, there will be a duplicate key
# error on the (4,7,2).
--error ER_DUP_ENTRY
reap;

--echo # session default
connection default;
ROLLBACK;

--echo # session con1
connection con1;
SHOW CREATE TABLE t1;
# Now, rebuild the table without any concurrent DML, while no duplicate exists.
--error ER_CANT_DROP_FIELD_OR_KEY
ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE INDEX(c2), ALGORITHM = INPLACE;
ALTER TABLE t1 DROP INDEX c2, ADD PRIMARY KEY(c1), ALGORITHM = INPLACE;
eval $innodb_metrics_select;

--echo # session default
connection default;
--error ER_DUP_ENTRY
INSERT INTO t1 VALUES(6,3,1);
--error ER_DUP_ENTRY
INSERT INTO t1 VALUES(7,4,2);
DROP INDEX c2_2 ON t1;
BEGIN;
INSERT INTO t1 VALUES(7,4,2);
ROLLBACK;

--echo # session con1
connection con1;
let $ID= `SELECT @id := CONNECTION_ID()`;
--error ER_QUERY_INTERRUPTED
KILL QUERY @id;

SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL rebuilt WAIT_FOR kill_done';
--send
ALTER TABLE t1 ROW_FORMAT=REDUNDANT;

--echo # session default
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR rebuilt';
eval $innodb_metrics_select;
let $ignore= `SELECT @id := $ID`;
KILL QUERY @id;
SET DEBUG_SYNC = 'now SIGNAL kill_done';

--echo # session con1
connection con1;
--error ER_QUERY_INTERRUPTED
reap;
eval $innodb_metrics_select;

--echo # session default
connection default;
CHECK TABLE t1;
INSERT INTO t1 SELECT  5 + c1, c2, c3 FROM t1;
INSERT INTO t1 SELECT 10 + c1, c2, c3 FROM t1;
INSERT INTO t1 SELECT 20 + c1, c2, c3 FROM t1;
INSERT INTO t1 SELECT 40 + c1, c2, c3 FROM t1;
# Purge may or may not have cleaned up the DELETE FROM t1 WHERE c1 = 7;
--replace_result 81 80
EXPLAIN SELECT COUNT(*) FROM t1 WHERE c2 > 3;
ANALYZE TABLE t1;

--echo # session con1
connection con1;
SHOW CREATE TABLE t1;

# Exceed the configured innodb_online_alter_log_max_size.
# The actual limit is a multiple of innodb_sort_buf_size,
# because that is the size of the in-memory log buffers.
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL rebuilt2 WAIT_FOR dml2_done';
# Ensure that the ALTER TABLE will be executed even with some concurrent DML.
SET lock_wait_timeout = 10;
--send
ALTER TABLE t1 ROW_FORMAT=COMPACT, ALGORITHM = INPLACE;

# Generate some log (delete-mark, delete-unmark, insert etc.)
# while the index creation is blocked. Some of this may run
# in parallel with the clustered index scan.
--echo # session default
connection default;
INSERT INTO t1 SELECT  80 + c1, c2, c3 FROM t1;
INSERT INTO t1 SELECT 160 + c1, c2, c3 FROM t1;
UPDATE t1 SET c2 = c2 + 1;
SET DEBUG_SYNC = 'now WAIT_FOR rebuilt2';
# At this point, the clustered index scan must have completed,
# but the modification log keeps accumulating due to the DEBUG_SYNC.
eval $innodb_metrics_select;
let $c= 3;
while ($c)
{
  BEGIN;
  DELETE FROM t1;
  ROLLBACK;
  UPDATE t1 SET c2 = c2 + 1;
  BEGIN;
  UPDATE t1 SET c2 = c2 + 1;
  DELETE FROM t1;
  ROLLBACK;
  dec $c;
}
# Temporary table should exist until the DDL thread notices the overflow.
eval $innodb_metrics_select;

# Release con1.
SET DEBUG_SYNC = 'now SIGNAL dml2_done';

--echo # session con1
connection con1;
# If the following fails with the wrong error, it probably means that
# you should rerun with a larger mtr --debug-sync-timeout.
--error ER_INNODB_ONLINE_LOG_TOO_BIG
reap;
# The table should have been dropped from the data dictionary
# when the above error was noticed.
eval $innodb_metrics_select;

# Accumulate and apply some modification log.
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL rebuilt3 WAIT_FOR dml3_done';
--error ER_MULTIPLE_PRI_KEY
ALTER TABLE t1 ADD PRIMARY KEY(c22f), CHANGE c2 c22f INT;
--error ER_DUP_ENTRY
ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(c22f), CHANGE c2 c22f INT;
--send
ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(c1,c22f,c4(5)),
CHANGE c2 c22f INT, CHANGE c3 c3 TEXT NULL, CHANGE c1 c1 INT AFTER c22f,
ADD COLUMN c4 VARCHAR(6) DEFAULT 'Online';

--echo # session default
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR rebuilt3';
# Generate some log (delete-mark, delete-unmark, insert etc.)
eval $innodb_metrics_select;
BEGIN;
INSERT INTO t1 SELECT 320 + c1, c2, c3 FROM t1 WHERE c1 > 240;
DELETE FROM t1 WHERE c1 > 320;
ROLLBACK;
BEGIN;
UPDATE t1 SET c2 = c2 + 1;
DELETE FROM t1;
ROLLBACK;
eval $innodb_metrics_select;
# Release con1.
SET DEBUG_SYNC = 'now SIGNAL dml3_done';

--echo # session con1
connection con1;
reap;
eval $innodb_metrics_select;
SELECT COUNT(c22f) FROM t1;
CHECK TABLE t1;

# Create a column prefix index.
--error ER_DUP_ENTRY
ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY c3p5(c3(5));
UPDATE t1 SET c3 = NULL WHERE c3 = '';
SET lock_wait_timeout = 1;
--error ER_MULTIPLE_PRI_KEY
ALTER TABLE t1 DROP COLUMN c22f, ADD PRIMARY KEY c3p5(c3(5));
SET @old_sql_mode = @@sql_mode;
# NULL -> NOT NULL only allowed INPLACE if strict sql_mode is on.
# And adding a PRIMARY KEY will also add NOT NULL implicitly!
SET @@sql_mode = 'STRICT_TRANS_TABLES';
--error ER_INVALID_USE_OF_NULL
ALTER TABLE t1 DROP COLUMN c22f, DROP PRIMARY KEY, ADD PRIMARY KEY c3p5(c3(5)),
ALGORITHM = INPLACE;

--error ER_INVALID_USE_OF_NULL
ALTER TABLE t1 MODIFY c3 TEXT NOT NULL;
SET @@sql_mode = @old_sql_mode;
UPDATE t1 SET c3=CONCAT(c1,REPEAT('foo',c1)) WHERE c3 IS NULL;

SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL c3p5_created0 WAIT_FOR ins_done0';
# NULL -> NOT NULL only allowed INPLACE if strict sql_mode is on.
SET @@sql_mode = 'STRICT_TRANS_TABLES';
--send
ALTER TABLE t1 MODIFY c3 TEXT NOT NULL, DROP COLUMN c22f,
ADD COLUMN c5 CHAR(5) DEFAULT 'tired' FIRST;

--echo # session default
connection default;

SET DEBUG_SYNC = 'now WAIT_FOR c3p5_created0';
BEGIN;
INSERT INTO t1 VALUES(347,33101,'Pikku kakkosen posti','YLETV2');
INSERT INTO t1 VALUES(33101,347,NULL,'');
SET DEBUG_SYNC = 'now SIGNAL ins_done0';

--echo # session con1
connection con1;
--error ER_INVALID_USE_OF_NULL
reap;
SET @@sql_mode = @old_sql_mode;

--echo # session default
connection default;
ROLLBACK;

--echo # session con1
connection con1;
ALTER TABLE t1 MODIFY c3 TEXT NOT NULL;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL c3p5_created WAIT_FOR ins_done';
--send
ALTER TABLE t1 DROP PRIMARY KEY, DROP COLUMN c22f,
ADD COLUMN c6 VARCHAR(1000) DEFAULT
'I love tracking down hard-to-reproduce bugs.',
ADD PRIMARY KEY c3p5(c3(5), c6(2));

--echo # session default
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR c3p5_created';
SET DEBUG_SYNC = 'ib_after_row_insert SIGNAL ins_done WAIT_FOR ddl_timed_out';
--error ER_BAD_NULL_ERROR
INSERT INTO t1 VALUES(347,33101,NULL,'');
--send
INSERT INTO t1 VALUES(347,33101,'Pikku kakkosen posti','');

--echo # session con1
connection con1;
--error ER_LOCK_WAIT_TIMEOUT
reap;
SET DEBUG_SYNC = 'now SIGNAL ddl_timed_out';
eval $innodb_metrics_select;

--echo # session default
connection default;
reap;
SELECT COUNT(*) FROM t1;
ALTER TABLE t1 ROW_FORMAT=REDUNDANT;
SELECT * FROM t1 LIMIT 10;

--echo # session con1
connection con1;
ALTER TABLE t1 DISCARD TABLESPACE;
--echo # Disconnect session con1
disconnect con1;

--echo # session default
connection default;
SHOW CREATE TABLE t1;
SET DEBUG_SYNC = 'RESET';
SET DEBUG = '';
SET GLOBAL innodb_monitor_disable = module_ddl;
DROP TABLE t1;

# Check that all connections opened by test cases in this file are really
# gone so execution of other tests won't be affected by their presence.
--source include/wait_until_count_sessions.inc

SET GLOBAL DEBUG = '';
SET GLOBAL innodb_file_per_table = @global_innodb_file_per_table_orig;
--disable_warnings
SET GLOBAL innodb_monitor_enable  = default;
SET GLOBAL innodb_monitor_disable = default;
--enable_warnings
