mariadb/mysql-test/t/ndb_autodiscover.test

-- source include/have_ndb.inc

--disable_warnings
drop table if exists t1,t2,t3,t4,t5,t6,t9;
--enable_warnings

################################################
# Test that a table that does not exist as a 
# frm file on disk can be "discovered" from a 
# connected NDB Cluster
#

flush status;

#
# Test discover + SELECT
#

create table t1(
  id int not null primary key,
  name char(20)
) engine=ndb;

insert into t1 values(1, "Autodiscover");
flush tables;
system rm var/master-data/test/t1.frm ;
select * from t1;
show status like 'handler_discover%';

#
# Test discover + INSERT
#

flush tables;
system rm var/master-data/test/t1.frm ;
insert into t1 values (2, "Auto 2");
show status like 'handler_discover%';
insert into t1 values (3, "Discover 3");
show status like 'handler_discover%';
flush tables;
system rm var/master-data/test/t1.frm ;
select * from t1 order by id;
show status like 'handler_discover%';

#
# Test discover + UPDATE
#

flush tables;
system rm var/master-data/test/t1.frm ;
update t1 set name="Autodiscover" where id = 2;
show status like 'handler_discover%';
select * from t1 order by id;
show status like 'handler_discover%';

#
# Test discover + DELETE
#

flush tables;
system rm var/master-data/test/t1.frm ;
delete from  t1 where id = 3;
select * from t1 order by id;
show status like 'handler_discover%';

drop table t1;



######################################################
# Test that a table that is outdated on disk
# can be "discovered" from a connected NDB Cluster
#

flush status;

create table t2(
  id int not null primary key,
  name char(22)
) engine=ndb;
insert into t2 values (1, "Discoverer");
select * from t2;
show status like 'handler_discover%';
flush tables;

# Modify the frm file on disk
system echo "blaj" >> var/master-data/test/t2.frm ;
select * from t2;

show status like 'handler_discover%';

drop table t2;


##################################################
# Test that a table that already exists in NDB 
# is only discovered if CREATE TABLE IF NOT EXISTS 
# is used
#

flush status;

create table t3(
  id int not null primary key,
  name char(255)
) engine=ndb;
insert into t3 values (1, "Explorer");
select * from t3;
show status like 'handler_discover%';
flush tables;

# Remove the frm file from disk
system rm var/master-data/test/t3.frm ;

--error 1050
create table t3(
  id int not null primary key,
  name char(20), a int, b float, c char(24)
) engine=ndb;

# The table shall not have been discovered since
# IF NOT EXISTS wasn't specified

show status like 'handler_discover%';
SHOW TABLES FROM test;

# now it should be discovered
create table IF NOT EXISTS t3(
  id int not null primary key,
  id2 int not null,
  name char(20)
) engine=ndb;

# NOTE! the table called t3 have now been updated to 
# use the same frm as in NDB, thus it's not certain that 
# the table schema is the same as was stated in the 
# CREATE TABLE statement above

show status like 'handler_discover%';

SHOW CREATE TABLE t3;

select * from t3;
show status like 'handler_discover%';

drop table t3;

#######################################################
# Test that a table that already exists as frm file
# but not in NDB can be deleted from disk.
#

# Manual test
#flush status;
#
#create table t4(
#  id int not null primary key,
#  name char(27)
#) engine=ndb;
#insert into t4 values (1, "Automatic");
#select * from t4;
#
# Remove the table from NDB
#system drop_tab -c "$NDB_CONNECTSTRING2" -d test t4 > /dev/null ;
#system drop_tab -c "host=localhost:2200;nodeid=5" -d test t4 > /dev/null ;
#
#--error 1296
#select * from t4;
#
#flush table t4;
#--error 1016
#select * from t4;
#
#show status like 'handler_discover%';
#drop table t4;
#flush tables;
#show tables;
#--error 1146
#select * from t4;


#########################################################
# Test that a table that has been changed in NDB 
# since it's been opened will be refreshed and discovered
# again
#

flush status;

show status like 'handler_discover%';

create table t5(
  id int not null primary key,
  name char(200)
) engine=ndb;
insert into t5 values (1, "Magnus");
select * from t5;

ALTER TABLE t5 ADD COLUMN adress char(255) FIRST;

select * from t5;

insert into t5 values 
 ("Adress for record 2", 2, "Carl-Gustav"), 
 ("Adress for record 3", 3, "Karl-Emil");
update t5 set name="Bertil" where id = 2;
select * from t5 order by id;

show status like 'handler_discover%';

drop table t5;


################################################################
# Test that a table that has been changed with ALTER TABLE
# can be used from the same thread
#

flush status;

show status like 'handler_discover%';

create table t6(
  id int not null primary key,
  name char(20)
) engine=ndb;
insert into t6 values (1, "Magnus");
select * from t6;

ALTER TABLE t6 ADD COLUMN adress char(255) FIRST;

select * from t6;
insert into t6 values 
 ("Adress for record 2", 2, "Carl-Gustav"), 
 ("Adress for record 3", 3, "Karl-Emil");
update t6 set name="Bertil" where id = 2;
select * from t6 order by id;

show status like 'handler_discover%';

drop table t6;

######################################################
# Simple test to show use of discover on startup
# Note! This should always be the last step in this 
# file, the table t9 will be used and dropped 
# by ndb_autodiscover2
#

CREATE TABLE t9 (
  a int NOT NULL PRIMARY KEY,
  b int
) engine=ndb;

insert t9 values(1, 2), (2,3), (3, 4), (4, 5);

#Don't drop the table, instead remove the frm file
system rm var/master-data/test/t9.frm ;

# Now leave test case, when ndb_autodiscover2 will  run, this 
# MySQL Server will have been restarted because it has a 
# ndb_autodiscover2-master.opt file. And thus the table should 
# have been discovered by the "discover on startup" function.

#TODO
#SLECT * FROM t1, t2, t4;
#handler discover 3;