~drizzle-trunk/drizzle/development

# Initialise
--disable_warnings
drop table if exists t1, t2;
--enable_warnings

#
# Testing of NULL in a lot of different places
#

select null,\N,isnull(null),isnull(1/0),isnull(1/0 = null),ifnull(null,1),ifnull(null,"TRUE"),ifnull("TRUE","ERROR"),1/0 is null,1 is not null;
explain extended select null,\N,isnull(null),isnull(1/0),isnull(1/0 = null),ifnull(null,1),ifnull(null,"TRUE"),ifnull("TRUE","ERROR"),1/0 is null,1 is not null;
select CONCAT(1, NULL),1+NULL,1-NULL;
select NULL=NULL,NULL<>NULL,IFNULL(NULL,1.1)+0,CONCAT(IFNULL(NULL,1), 0);
select strcmp("a",NULL),(1<NULL)+0.0,null like "a%","a%" like null;
select concat("a",NULL),replace(NULL,"a","b"),replace("string","i",NULL),replace("string",NULL,"i"),insert("abc",1,1,NULL),left(NULL,1);
select repeat("a",0),repeat("ab",5+5),repeat("ab",-1),reverse(NULL);
select field(NULL,"a","b","c");
select 2 between null and 1,2 between 3 AND NULL,NULL between 1 and 2,2 between NULL and 3, 2 between 1 AND null;
explain extended select 2 between null and 1,2 between 3 AND NULL,NULL between 1 and 2,2 between NULL and 3, 2 between 1 AND null;
SELECT NULL AND NULL, 1 AND NULL, NULL AND 1, NULL OR NULL, 0 OR NULL, NULL OR 0;
SELECT (NULL OR NULL) IS NULL;
select NULL AND 0, 0 and NULL;
# @TODO Move to functions/inet_ntoa.test when INET_NTOA function is 
# implemented
# select inet_ntoa(null),inet_aton(null),inet_aton("122.256"),inet_aton("122.226."),inet_aton("");
# explain extended select inet_ntoa(null),inet_aton(null),inet_aton("122.256"),inet_aton("122.226."),inet_aton("");

create table t1 (x int);
insert into t1 values (null);
select * from t1 where x != 0;
drop table t1;

#
# Test problem med index on NULL columns and testing with =NULL;
#

CREATE TABLE t1 (
  indexed_field int default NULL,
  KEY indexed_field (indexed_field)
);
INSERT INTO t1 VALUES (NULL),(NULL);
SELECT * FROM t1 WHERE indexed_field=NULL;
SELECT * FROM t1 WHERE indexed_field IS NULL;
SELECT * FROM t1 WHERE indexed_field<=>NULL;
DROP TABLE t1;

#
# Testing of IFNULL
#
create table t1 (a int, b int);
insert into t1 values(20,null);
select t2.b, ifnull(t2.b,"this is null") from t1 as t2 left join t1 as t3 on
t2.b=t3.a;
select t2.b, ifnull(t2.b,"this is null") from t1 as t2 left join t1 as t3 on
t2.b=t3.a order by 1;
insert into t1 values(10,null);
select t2.b, ifnull(t2.b,"this is null") from t1 as t2 left join t1 as t3 on
t2.b=t3.a order by 1;
drop table t1;

#
# Test inserting and updating with NULL
#
CREATE TABLE t1 (a varchar(16) NOT NULL default '', b int NOT NULL default 0, c datetime NOT NULL default '2009-02-10 00:00:00', d int NOT NULL default 0);

# Test INSERT with NULL

--error 1048
INSERT INTO t1 (a) values (null);
--error 1048
INSERT INTO t1 (a) values (1/null);
--error 1048
INSERT INTO t1 (a) values (null),(null);
--error 1048
INSERT INTO t1 (b) values (null);
--error 1048
INSERT INTO t1 (b) values (1/null);
--error 1048
INSERT INTO t1 (b) values (null),(null);
--error 1048
INSERT INTO t1 (c) values (null);
--error 1048
INSERT INTO t1 (c) values (1/null);
--error 1048
INSERT INTO t1 (c) values (null),(null);
--error 1048
INSERT INTO t1 (d) values (null);
--error 1048
INSERT INTO t1 (d) values (1/null);
--error 1048
INSERT INTO t1 (d) values (null),(null);

# Test UPDATE with NULLs

# The following should not error since there 
# are no rows in the table.
UPDATE t1 SET d= NULL;

# Insert a default row in order to test UPDATE to NULL error
INSERT INTO t1 VALUES ();

--error 1048
UPDATE t1 SET a=1/NULL;
--error 1048
UPDATE t1 SET a=NULL;
--error 1048
UPDATE t1 SET b=NULL;
--error 1048
UPDATE t1 SET c=NULL;
--error 1048
UPDATE t1 SET d=NULL;

truncate table t1;

# Test for LOAD DATA INFILE and check for NULL handling
# Error produced should be 1263, which is almost the same
# as 1048, only gives a "row" number.
# @TODO Is there really a reason for a separate error 
# just for LOAD DATA INFILE?
--error 1263
LOAD DATA INFILE '../std_data_ln/null_test.txt' INTO TABLE t1 FIELDS ENCLOSED BY '"';

drop table t1;


#
# Test to check elimination of IS NULL predicate for a non-nullable attribute
# (bug #1990)  
#
create table t1 (a int not null, b int not null, index idx(a));
insert into t1 values
  (1,1), (2,2), (3,3), (4,4), (5,5), (6,6),
  (7,7), (8,8), (9,9), (10,10), (11,11), (12,12);
explain select * from t1 where a between 2 and 3;
explain select * from t1 where a between 2 and 3 or b is null;
drop table t1;

#
# IS NULL is unable to use index in range if column is declared not null
# (Bug #4256)
#
#create table t1(i int, key(i));
#insert into t1 values(1);
#insert into t1 select i*2 from t1;
#insert into t1 select i*2 from t1;
#insert into t1 select i*2 from t1;
#insert into t1 select i*2 from t1;
#insert into t1 select i*2 from t1;
#insert into t1 select i*2 from t1;
#insert into t1 select i*2 from t1;
#insert into t1 select i*2 from t1;
#insert into t1 select i*2 from t1;
#insert into t1 values(null);
#explain select * from t1 where i=2 or i is null;
#select count(*) from t1 where i=2 or i is null;
# @TODO Fails with error 1265 on line 128.  Bug?
#alter table t1 change i i int not null;
#explain select * from t1 where i=2 or i is null;
#select count(*) from t1 where i=2 or i is null;
#drop table t1;

#
# NULL has its own type BINARY(0) by default.
# But NULL should be weaker than a constant
# when mixing charsets/collations
#
# Check that result type is taken from a non-null string
create table t1 select
  null as c00,
  if(1, null, 'string') as c01,
  if(0, null, 'string') as c02,
  ifnull(null, 'string') as c03,
  ifnull('string', null) as c04,
  case when 0 then null else 'string' end as c05,
  case when 1 then null else 'string' end as c06,
  coalesce(null, 'string') as c07,
  coalesce('string', null) as c08,
  least('string',null) as c09,
  least(null, 'string') as c10,
  greatest('string',null) as c11,
  greatest(null, 'string') as c12,
  nullif('string', null) as c13,
  nullif(null, 'string') as c14,
  trim('string' from null) as c15,
  trim(null from 'string') as c16,
  substring_index('string', null, 1) as c17,
  substring_index(null, 'string', 1) as c18,
  elt(1, null, 'string') as c19,
  elt(1, 'string', null) as c20,
  concat('string', null) as c21,
  concat(null, 'string') as c22,
  concat_ws('sep', 'string', null) as c23,
  concat_ws('sep', null, 'string') as c24,
  concat_ws(null, 'string', 'string') as c25,
  make_set(3, 'string', null) as c26,
  make_set(3, null, 'string') as c27,
  export_set(3, null, 'off', 'sep') as c29,
  export_set(3, 'on', null, 'sep') as c30,
  export_set(3, 'on', 'off', null) as c31,
  replace(null, 'from', 'to') as c32,
  replace('str', null, 'to') as c33,
  replace('str', 'from', null) as c34,
  insert('str', 1, 2, null) as c35,
  insert(null, 1, 2, 'str') as c36,
  lpad('str', 10, null) as c37,
  rpad(null, 10, 'str') as c38;
  
show create table t1;
drop table t1;

#
# Check that comparison is done according to
# non-null string collation, i.e. case insensitively,
# rather than according to NULL's collation, i.e. case sensitively
#
# in field
select 
  case 'str' when 'STR' then 'str' when null then 'null' end as c01,
  case 'str' when null then 'null' when 'STR' then 'str' end as c02,
  field(null, 'str1', 'str2') as c03,
  field('str1','STR1', null) as c04,
  field('str1', null, 'STR1') as c05,
  'string' in ('STRING', null) as c08,
  'string' in (null, 'STRING') as c09;

#
# Bug#19145: mysqld crashes if you set the default value of an enum field to NULL
#
#create table bug19145a (e enum('a','b','c')          default 'b' , s set('x', 'y', 'z')          default 'y' ) engine=MyISAM;
#create table bug19145b (e enum('a','b','c')          default null, s set('x', 'y', 'z')          default null) engine=MyISAM;

#create table bug19145c (e enum('a','b','c') not null default 'b' , s set('x', 'y', 'z') not null default 'y' ) engine=MyISAM;

# Invalid default value for 's'
#--error 1067
#create table bug19145setnotnulldefaultnull (e enum('a','b','c')          default null, s set('x', 'y', 'z') not null default null) engine=MyISAM;

# Invalid default value for 'e'
#--error 1067
#create table bug19145enumnotnulldefaultnull (e enum('a','b','c') not null default null, s set('x', 'y', 'z')          default null) engine=MyISAM;

#alter table bug19145a alter column e set default null;
#alter table bug19145a alter column s set default null;
#alter table bug19145a add column (i int);

#alter table bug19145b alter column e set default null;
#alter table bug19145b alter column s set default null;
#alter table bug19145b add column (i int);

# Invalid default value for 'e'
#--error 1067
#alter table bug19145c alter column e set default null;

# Invalid default value for 's'
#--error 1067
#alter table bug19145c alter column s set default null;
#alter table bug19145c add column (i int);

#show create table bug19145a;
#show create table bug19145b;
#show create table bug19145c;

#drop table bug19145a;
#drop table bug19145b;
#drop table bug19145c;

--echo # End of 4.1 tests

--echo #
--echo # Bug #31471: decimal_bin_size: Assertion `scale >= 0 &&
--echo #             precision > 0 && scale <= precision'
--echo #

CREATE TABLE t1 (a DECIMAL (1, 0) , b DECIMAL (1, 0) );
INSERT INTO t1 (a, b) VALUES (0, 0);

CREATE TABLE t2 SELECT IFNULL(a, b) FROM t1;
DESCRIBE t2;
DROP TABLE t2;

CREATE TABLE t2 SELECT IFNULL(a, NULL) FROM t1;
DESCRIBE t2;
DROP TABLE t2;

CREATE TABLE t2 SELECT IFNULL(NULL, b) FROM t1;
DESCRIBE t2;

DROP TABLE t1, t2;

--echo # End of 5.0 tests