mariadb/mysql-test/t/view.test

--disable_warnings
drop table if exists t1,t2,`t1a``b`,v1,v2,v3,v4,v5,v6;
drop view if exists t1,t2,`t1a``b`,v1,v2,v3,v4,v5,v6;
drop database if exists mysqltest;
--enable_warnings
use test;

#
# some basic test of views and its functionality
#

# create view on unexistence table
-- error 1146
create view v1 (c,d) as select a,b from t1;

create temporary table t1 (a int, b int);
#view on temporary table
-- error 1352
create view v1 (c) as select b+1 from t1;
drop table t1;

create table t1 (a int, b int);
insert into t1 values (1,2), (1,3), (2,4), (2,5), (3,10);

#view with variable
-- error 1351
create view v1 (c,d) as select a,b+@@global.max_user_connections from t1;

# simple view
create view v1 (c) as select b+1 from t1;
select c from v1;

#tamporary table should not shade (hide) table of view
create temporary table t1 (a int, b int);
# this is empty
select * from t1;
# but this based on normal t1
select c from v1;
show create table v1;
show create view v1;
-- error 1347
show create view t1;
drop table t1;

# try to use fields from underlaid table
-- error 1054
select a from v1;
-- error 1054
select v1.a from v1;
-- error 1054
select b from v1;
-- error 1054
select v1.b from v1;

# view with different algorithms (explain out put are differ)
explain extended select c from v1;
create algorithm=temptable view v2 (c) as select b+1 from t1;
show create view v2;
select c from v2;
explain extended select c from v2;

# try to use underlaid table fields in VIEW creation process
-- error 1054
create view v3 (c) as select a+1 from v1;
-- error 1054
create view v3 (c) as select b+1 from v1;


# VIEW on VIEW test with mixing different algorithms on different order
create view v3 (c) as select c+1 from v1;
select c from v3;
explain extended select c from v3;
create algorithm=temptable view v4 (c) as select c+1 from v2;
select c from v4;
explain extended select c from v4;
create view v5 (c) as select c+1 from v2;
select c from v5;
explain extended select c from v5;
create algorithm=temptable view v6 (c) as select c+1 from v1;
select c from v6;
explain extended select c from v6;

# show table/table status test
show tables;
show full tables;
--replace_column 12 # 13 #
show table status;

drop view v1,v2,v3,v4,v5,v6;

#
# alter/create view test
#

# view with subqueries of different types
create view v1 (c,d,e,f) as select a,b,
a in (select a+2 from t1), a = all (select a from t1) from t1;
create view v2 as select c, d from v1;
select * from v1;
select * from v2;

# try to create VIEW with name of existing VIEW
-- error 1050
create view v1 (c,d,e,f) as select a,b, a in (select a+2 from t1), a = all (select a from t1) from t1;

# 'or replace' should work in this case
create or replace view v1 (c,d,e,f) as select a,b, a in (select a+2 from t1), a = all (select a from t1) from t1;

# try to ALTER unexisting VIEW
drop view v2;
-- error 1146
alter view v2 as select c, d from v1;

# 'or replace' on unexisting view
create or replace view v2 as select c, d from v1;

# alter view on existing view
alter view v1 (c,d) as select a,max(b) from t1 group by a;

# check that created view works
select * from v1;
select * from v2;

# simple test of grants
grant create view on test.* to test@localhost;
show grants for test@localhost;
revoke create view on test.* from test@localhost;
show grants for test@localhost;

#try to drop unexisten VIEW
-- error 1051
drop view v100;

#try to drop table with DROP VIEW
-- error 1347
drop view t1;

#try to drop VIEW with DROP TABLE
-- error 1051
drop table v1;

#try to drop table with DROP VIEW

drop view v1,v2;
drop table t1;

#
# outer left join with merged views
#
create table t1 (a int);
insert into t1 values (1), (2), (3);

create view v1 (a) as select a+1 from t1;
create view v2 (a) as select a-1 from t1;

select * from t1 natural left join v1;
select * from v2 natural left join t1;
select * from v2 natural left join v1;

drop view v1, v2;
drop table t1;


#
# grant create view test
#
connect (root,localhost,root,,test);
connection root;
--disable_warnings
create database mysqltest;
--enable_warnings

create table mysqltest.t1 (a int, b int);
create table mysqltest.t2 (a int, b int);

grant select on mysqltest.t1 to mysqltest_1@localhost;
grant create view,select on test.* to mysqltest_1@localhost;

connect (user1,localhost,mysqltest_1,,test);
connection user1;

create view v1 as select * from mysqltest.t1;
# try to modify view without DELETE privilege on it
-- error 1142
alter view v1 as select * from mysqltest.t1;
-- error 1142
create or replace view v1 as select * from mysqltest.t1;
# no CRETE VIEW privilege
-- error 1142
create view mysqltest.v2  as select * from mysqltest.t1;
# no SELECT privilege
-- error 1142
create view v2 as select * from mysqltest.t2;

connection root;
revoke all privileges on mysqltest.t1 from mysqltest_1@localhost;
revoke all privileges on test.* from mysqltest_1@localhost;

drop database mysqltest;
drop view test.v1;

#
# grants per columns
#
# MERGE algorithm
--disable_warnings
create database mysqltest;
--enable_warnings

create table mysqltest.t1 (a int, b int);
create view mysqltest.v1 (c,d) as select a+1,b+1 from mysqltest.t1;
grant select (c) on mysqltest.v1 to mysqltest_1@localhost;

connection user1;
select c from mysqltest.v1;
# there are not privilege ob column 'd'
-- error 1143
select d from mysqltest.v1;

connection root;
revoke all privileges on mysqltest.v1 from mysqltest_1@localhost;
delete from mysql.user where user='mysqltest_1';
drop database mysqltest;

# TEMPORARY TABLE algorithm
--disable_warnings
create database mysqltest;
--enable_warnings

create table mysqltest.t1 (a int, b int);
create algorithm=temptable view mysqltest.v1 (c,d) as select a+1,b+1 from mysqltest.t1;
grant select (c) on mysqltest.v1 to mysqltest_1@localhost;

connection user1;
select c from mysqltest.v1;
# there are not privilege ob column 'd'
-- error 1143
select d from mysqltest.v1;

connection root;
revoke all privileges on mysqltest.v1 from mysqltest_1@localhost;
delete from mysql.user where user='mysqltest_1';
drop database mysqltest;

#
# EXPLAIN rights
#
connection root;
--disable_warnings
create database mysqltest;
--enable_warnings
#prepare views and tables
create table mysqltest.t1 (a int, b int);
create table mysqltest.t2 (a int, b int);
create view mysqltest.v1 (c,d) as select a+1,b+1 from mysqltest.t1;
create algorithm=temptable view mysqltest.v2 (c,d) as select a+1,b+1 from mysqltest.t1;
create view mysqltest.v3 (c,d) as select a+1,b+1 from mysqltest.t2;
create algorithm=temptable view mysqltest.v4 (c,d) as select a+1,b+1 from mysqltest.t2;
grant select on mysqltest.v1 to mysqltest_1@localhost;
grant select on mysqltest.v2 to mysqltest_1@localhost;
grant select on mysqltest.v3 to mysqltest_1@localhost;
grant select on mysqltest.v4 to mysqltest_1@localhost;

connection user1;
# all selects works
select c from mysqltest.v1;
select c from mysqltest.v2;
select c from mysqltest.v3;
select c from mysqltest.v4;
# test of show coluns
show columns from mysqltest.v1;
show columns from mysqltest.v2;
# but explain/show do not
-- error 1345
explain select c from mysqltest.v1;
-- error 1142
show create view mysqltest.v1;
-- error 1345
explain select c from mysqltest.v2;
-- error 1142
show create view mysqltest.v2;
-- error 1345
explain select c from mysqltest.v3;
-- error 1142
show create view mysqltest.v3;
-- error 1345
explain select c from mysqltest.v4;
-- error 1142
show create view mysqltest.v4;

# allow to see one of underlaing table
connection root;
grant select on mysqltest.t1 to mysqltest_1@localhost;
connection user1;
# EXPLAIN of view on above table works
explain select c from mysqltest.v1;
-- error 1142
show create view mysqltest.v1;
explain select c from mysqltest.v2;
-- error 1142
show create view mysqltest.v2;
# but other EXPLAINs do not
-- error 1345
explain select c from mysqltest.v3;
-- error 1142
show create view mysqltest.v3;
-- error 1345
explain select c from mysqltest.v4;
-- error 1142
show create view mysqltest.v4;

# allow to see any view in mysqltest database
connection root;
grant show view on mysqltest.* to mysqltest_1@localhost;
connection user1;
explain select c from mysqltest.v1;
show create view mysqltest.v1;
explain select c from mysqltest.v2;
show create view mysqltest.v2;
explain select c from mysqltest.v3;
show create view mysqltest.v3;
explain select c from mysqltest.v4;
show create view mysqltest.v4;

connection root;
revoke all privileges on mysqltest.* from mysqltest_1@localhost;
delete from mysql.user where user='mysqltest_1';
drop database mysqltest;

#
# QUERY CHECHE options for VIEWs
#
set GLOBAL query_cache_size=1355776;
flush status;
create table t1 (a int, b int);

# queries with following views should not be in query cache
create view v1 (c,d) as select sql_no_cache a,b from t1;
create view v2 (c,d) as select a+rand(),b from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
select * from v2;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
select * from v2;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";

drop view v1,v2;

# SQL_CACHE option
set query_cache_type=demand;
flush status;
# query with view will be cached, but direct acess to table will not
create view v1 (c,d) as select sql_cache a,b from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
drop view v1;
set query_cache_type=default;

drop table t1;
set GLOBAL query_cache_size=default;


#
# DISTINCT option for VIEW
#
create table t1 (a int);
insert into t1 values (1), (2), (3), (1), (2), (3);
create view v1 as select distinct a from t1;
select * from v1;
explain select * from v1;
select * from t1;
drop view v1;
drop table t1;

#
# syntax compatibility
#
create table t1 (a int);
-- error 1368
create view v1 as select distinct a from t1 WITH CHECK OPTION;
create view v1 as select a from t1 WITH CHECK OPTION;
create view v2 as select a from t1 WITH CASCADED CHECK OPTION;
create view v3 as select a from t1 WITH LOCAL CHECK OPTION;
drop view v3 RESTRICT;
drop view v2 CASCADE;
drop view v1;
drop table t1;

#
# aliases
#
create table t1 (a int, b int);
insert into t1 values (1,2), (1,3), (2,4), (2,5), (3,10);
create view v1 (c) as select b+1 from t1;
select test.c from v1 test;
create algorithm=temptable view v2 (c) as select b+1 from t1;
select test.c from v2 test;
select test1.* from v1 test1, v2 test2 where test1.c=test2.c;
select test2.* from v1 test1, v2 test2 where test1.c=test2.c;
drop table t1;
drop view v1,v2;

#
# LIMIT clasuse test
#
create table t1 (a int);
insert into t1 values (1), (2), (3), (4);
create view v1 as select a+1 from t1 order by 1 desc limit 2;
select * from v1;
explain select * from v1;
drop view v1;
drop table t1;

#
# CREATE ... SELECT view test
#
create table t1 (a int);
insert into t1 values (1), (2), (3), (4);
create view v1 as select a+1 from t1;
create table t2 select * from v1;
show columns from t2;
select * from t2;
drop view v1;
drop table t1,t2;

#
# simple view + simple update
#
create table t1 (a int, b int, primary key(a));
insert into t1 values (10,2), (20,3), (30,4), (40,5), (50,10);
create view v1 (a,c) as select a, b+1 from t1;
create algorithm=temptable view v2 (a,c) as select a, b+1 from t1;
# try to update expression
-- error 1348
update v1 set c=a+c;
# try to update VIEW with forced TEMPORARY TABLE algorithm
-- error 1288
update v2 set a=a+c;
# updatable field of updateable view
update v1 set a=a+c;
select * from v1;
select * from t1;
drop table t1;
drop view v1,v2;

#
# simple view + simple multi-update
#
create table t1 (a int, b int, primary key(a));
insert into t1 values (10,2), (20,3), (30,4), (40,5), (50,10);
create table t2 (x int);
insert into t2 values (10), (20);
create view v1 (a,c) as select a, b+1 from t1;
create algorithm=temptable view v2 (a,c) as select a, b+1 from t1;
# try to update expression
-- error 1348
update t2,v1 set v1.c=v1.a+v1.c where t2.x=v1.a;
# try to update VIEW with forced TEMPORARY TABLE algorithm
-- error 1288
update t2,v2 set v2.a=v2.v2.a+c where t2.x=v2.a;
# updatable field of updateable view
update t2,v1 set v1.a=v1.a+v1.c where t2.x=v1.a;
select * from v1;
select * from t1;
drop table t1,t2;
drop view v1,v2;

#
# UPDATE privileges on VIEW columns and whole VIEW
#
connection root;
--disable_warnings
create database mysqltest;
--enable_warnings

create table mysqltest.t1 (a int, b int, primary key(a));
insert into mysqltest.t1 values (10,2), (20,3), (30,4), (40,5), (50,10);
create table mysqltest.t2 (x int);
insert into mysqltest.t2 values (3), (4), (5), (6);
create view mysqltest.v1 (a,c) as select a, b+1 from mysqltest.t1;
create view mysqltest.v2 (a,c) as select a, b from mysqltest.t1;
create view mysqltest.v3 (a,c) as select a, b+1 from mysqltest.t1;

grant update (a) on mysqltest.v2 to mysqltest_1@localhost;
grant update on mysqltest.v1 to mysqltest_1@localhost;
grant select on mysqltest.* to mysqltest_1@localhost;

connection user1;
use mysqltest;
# update with rights on VIEW column
update t2,v1 set v1.a=v1.a+v1.c where t2.x=v1.c;
select * from t1;
update v1 set a=a+c;
select * from t1;
# update with rights on whole VIEW
update t2,v2 set v2.a=v2.a+v2.c where t2.x=v2.c;
select * from t1;
update v2 set a=a+c;
select * from t1;
# no rights on column
-- error 1143
update t2,v2 set v2.c=v2.a+v2.c where t2.x=v2.c;
-- error 1143
update v2 set c=a+c;
# no rights for view
-- error 1143
update t2,v3 set v3.a=v3.a+v3.c where t2.x=v3.c;
-- error 1142
update v3 set a=a+c;

use test;
connection root;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop database mysqltest;

#
# MEREGE VIEW with WHERE clause
#
create table t1 (a int, b int, primary key(b));
insert into t1 values (1,20), (2,30), (3,40), (4,50), (5,100);
create view v1 (c) as select b from t1 where a<3;
# simple select and explaint to be sure that it is MERGE
select * from v1;
explain extended select * from v1;
# update test
update v1 set c=c+1;
select * from t1;
# join of such VIEWs test
create view v2 (c) as select b from t1 where a>=3;
select * from v1, v2;
drop view v1, v2;
drop table t1;

#
# simple view + simple delete
#
create table t1 (a int, b int, primary key(a));
insert into t1 values (1,2), (2,3), (3,4), (4,5), (5,10);
create view v1 (a,c) as select a, b+1 from t1;
create algorithm=temptable view v2 (a,c) as select a, b+1 from t1;
# try to update VIEW with forced TEMPORARY TABLE algorithm
-- error 1288
delete from v2 where c < 4;
# updatable field of updateable view
delete from v1 where c < 4;
select * from v1;
select * from t1;
drop table t1;
drop view v1,v2;

#
# simple view + simple multi-delete
#
create table t1 (a int, b int, primary key(a));
insert into t1 values (1,2), (2,3), (3,4), (4,5), (5,10);
create table t2 (x int);
insert into t2 values (1), (2), (3), (4);
create view v1 (a,c) as select a, b+1 from t1;
create algorithm=temptable view v2 (a,c) as select a, b+1 from t1;
# try to update VIEW with forced TEMPORARY TABLE algorithm
-- error 1288
delete v2 from t2,v2 where t2.x=v2.a;
# updatable field of updateable view
delete v1 from t2,v1 where t2.x=v1.a;
select * from v1;
select * from t1;
drop table t1,t2;
drop view v1,v2;

#
# DELETE privileges on VIEW
#
connection root;
--disable_warnings
create database mysqltest;
--enable_warnings

create table mysqltest.t1 (a int, b int, primary key(a));
insert into mysqltest.t1 values (1,2), (2,3), (3,4), (4,5), (5,10);
create table mysqltest.t2 (x int);
insert into mysqltest.t2 values (3), (4), (5), (6);
create view mysqltest.v1 (a,c) as select a, b+1 from mysqltest.t1;
create view mysqltest.v2 (a,c) as select a, b+1 from mysqltest.t1;

grant delete on mysqltest.v1 to mysqltest_1@localhost;
grant select on mysqltest.* to mysqltest_1@localhost;

connection user1;
use mysqltest;
# update with rights on VIEW column
delete from v1 where c < 4;
select * from t1;
delete v1 from t2,v1 where t2.x=v1.c;
select * from t1;
# no rights for view
-- error 1142
delete v2 from t2,v2 where t2.x=v2.c;
-- error 1142
delete from v2 where c < 4;

use test;
connection root;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop database mysqltest;

#
# key presence check
#
create table t1 (a int, b int, c int, primary key(a,b));
insert into t1 values (10,2,-1), (20,3,-2), (30,4,-3), (40,5,-4), (50,10,-5);
create view v1 (x,y) as select a, b from t1;
create view v2 (x,y) as select a, c from t1;
set updatable_views_with_limit=NO;
update v1 set x=x+1;
update v2 set x=x+1;
update v1 set x=x+1 limit 1;
-- error 1288
update v2 set x=x+1 limit 1;
set updatable_views_with_limit=YES;
update v1 set x=x+1 limit 1;
update v2 set x=x+1 limit 1;
set updatable_views_with_limit=DEFAULT;
show variables like "updatable_views_with_limit";
select * from t1;
drop table t1;
drop view v1,v2;

#
# simple insert
#
create table t1 (a int, b int, c int, primary key(a,b));
insert into t1 values (10,2,-1), (20,3,-2);
create view v1 (x,y,z) as select c, b, a from t1;
create view v2 (x,y) as select b, a from t1;
create view v3 (x,y,z) as select b, a, b from t1;
create view v4 (x,y,z) as select c+1, b, a from t1;
create algorithm=temptable view v5 (x,y,z) as select c, b, a from t1;
# try insert to VIEW with fields duplicate
-- error 1288
insert into v3 values (-60,4,30);
# try insert to VIEW with expression in SELECT list
-- error 1288
insert into v4 values (-60,4,30);
# try insert to VIEW using temporary table algorithm
-- error 1288
insert into v5 values (-60,4,30);
insert into v1 values (-60,4,30);
insert into v1 (z,y,x) values (50,6,-100);
insert into v2 values (5,40);
select * from t1;
drop table t1;
drop view v1,v2,v3,v4,v5;

#
# insert ... select
#
create table t1 (a int, b int, c int, primary key(a,b));
insert into t1 values (10,2,-1), (20,3,-2);
create table t2 (a int, b int, c int, primary key(a,b));
insert into t2 values (30,4,-60);
create view v1 (x,y,z) as select c, b, a from t1;
create view v2 (x,y) as select b, a from t1;
create view v3 (x,y,z) as select b, a, b from t1;
create view v4 (x,y,z) as select c+1, b, a from t1;
create algorithm=temptable view v5 (x,y,z) as select c, b, a from t1;
# try insert to VIEW with fields duplicate
-- error 1288
insert into v3 select c, b, a from t2;
# try insert to VIEW with expression in SELECT list
-- error 1288
insert into v4 select c, b, a from t2;
# try insert to VIEW using temporary table algorithm
-- error 1288
insert into v5 select c, b, a from t2;
insert into v1 select c, b, a from t2;
insert into v1 (z,y,x) select a+20,b+2,-100 from t2;
insert into v2 select b+1, a+10 from t2;
select * from t1;
drop table t1, t2;
drop view v1,v2,v3,v4,v5;

#
# insert privileges on VIEW
#
connection root;
--disable_warnings
create database mysqltest;
--enable_warnings

create table mysqltest.t1 (a int, b int, primary key(a));
insert into mysqltest.t1 values (1,2), (2,3);
create table mysqltest.t2 (x int, y int);
insert into mysqltest.t2 values (3,4);
create view mysqltest.v1 (a,c) as select a, b from mysqltest.t1;
create view mysqltest.v2 (a,c) as select a, b from mysqltest.t1;

grant insert on mysqltest.v1 to mysqltest_1@localhost;
grant select on mysqltest.* to mysqltest_1@localhost;

connection user1;
use mysqltest;
# update with rights on VIEW column
insert into v1 values (5,6);
select * from t1;
insert into v1 select x,y from t2;
select * from t1;
# no rights for view
-- error 1142
insert into v2 values (5,6);
-- error 1142
insert into v2 select x,y from t2;

use test;
connection root;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop database mysqltest;

#
# outer join based on VIEW with WHERE clause
#
create table t1 (a int, primary key(a));
insert into t1 values (1), (2), (3);
create view v1 (x) as select a from t1 where a > 1;
select t1.a, v1.x from t1 left join v1 on (t1.a= v1.x);
drop table t1;
drop view v1;

#
# merging WHERE condition on VIEW on VIEW
#
create table t1 (a int, primary key(a));
insert into t1 values (1), (2), (3), (200);
create view v1 (x) as select a from t1 where a > 1;
create view v2 (y) as select x from v1 where x < 100;
select * from v2;
drop table t1;
drop view v1,v2;

#
# VIEW on non-updatable view
#
create table t1 (a int, primary key(a));
insert into t1 values (1), (2), (3), (200);
create ALGORITHM=TEMPTABLE view v1 (x) as select a from t1;
create view v2 (y) as select x from v1;
-- error 1288
update v2 set y=10 where y=2;
drop table t1;
drop view v1,v2;

#
# auto_increment field out of VIEW
#
create table t1 (a int not null auto_increment, b int not null, primary key(a), unique(b));
create view v1 (x) as select b from t1;
insert into v1 values (1);
select last_insert_id();
insert into t1 (b) values (2);
select last_insert_id();
select * from t1;
drop view v1;
drop table t1;

#
# test of CREATE VIEW privileges if we have limited privileges
#
connection root;
--disable_warnings
create database mysqltest;
--enable_warnings

create table mysqltest.t1 (a int, b int);
create table mysqltest.t2 (a int, b int);

grant update on mysqltest.t1 to mysqltest_1@localhost;
grant update(b) on mysqltest.t2 to mysqltest_1@localhost;
grant create view,update on test.* to mysqltest_1@localhost;

connection user1;

create view v1 as select * from mysqltest.t1;
create view v2 as select b from mysqltest.t2;
# There are not rights on mysqltest.v1
-- error 1142
create view mysqltest.v1 as select * from mysqltest.t1;
# There are not any rights on mysqltest.t2.a
-- error 1143
create view v3 as select a from mysqltest.t2;

# give CRETEA VIEW privileges (without any privileges for result colemn)
connection root;
create table mysqltest.v3 (b int);
grant create view on mysqltest.v3 to mysqltest_1@localhost;
drop table mysqltest.v3;
connection user1;
create view mysqltest.v3 as select b from mysqltest.t2;

# give UPDATE privileges
connection root;
grant create view, update on mysqltest.v3 to mysqltest_1@localhost;
drop view mysqltest.v3;
connection user1;
create view mysqltest.v3 as select b from mysqltest.t2;

# give UPDATE and INSERT privilege (to get more privileges then anderlying
# table)
connection root;
grant create view, update, insert on mysqltest.v3 to mysqltest_1@localhost;
drop view mysqltest.v3;
connection user1;
-- error 1143
create view mysqltest.v3 as select b from mysqltest.t2;


# If give other privileges for VIEW then underlaying table have =>
# creation prohibited
connection root;
create table mysqltest.v3 (b int);
grant select(b) on mysqltest.v3 to mysqltest_1@localhost;
drop table mysqltest.v3;
connection user1;
-- error 1142
create view mysqltest.v3 as select b from mysqltest.t2;

# Expression need select privileges
-- error 1143
create view v4 as select b+1 from mysqltest.t2;

connection root;
grant create view,update,select on test.* to mysqltest_1@localhost;
connection user1;
-- error 1143
create view v4 as select b+1 from mysqltest.t2;

connection root;
grant update,select(b) on mysqltest.t2 to mysqltest_1@localhost;
connection user1;
create view v4 as select b+1 from mysqltest.t2;

connection root;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop database mysqltest;
drop view v1,v2,v4;

#
# VIEW fields quoting
#
set sql_mode='ansi';
create table t1 ("a*b" int);
create view v1 as select "a*b" from t1;
show create view v1;
drop view v1;
drop table t1;
set sql_mode=default;

#
# VIEW without tables
#
create table t1 (t_column int);
create view v1 as select 'a';
select * from v1, t1;
drop view v1;
drop table t1;

#
# quote mark inside table name
#
create table `t1a``b` (col1 char(2));
create view v1 as select * from `t1a``b`;
select * from v1;
describe v1;
drop view v1;
drop table `t1a``b`;

#
# Changing of underlaying table
#
create table t1 (col1 char(5),col2 char(5));
create view v1 as select * from t1;
drop table t1;
create table t1 (col1 char(5),newcol2 char(5));
-- error 1356
insert into v1 values('a','aa');
drop table t1;
-- error 1356
select * from v1;
drop view v1;

#
# check of duplication of column names
#
-- error 1060
create view v1 (a,a) as select 'a','a';

#
# SP variables inside view test
#
delimiter //;
create procedure p1 () begin declare v int; create view v1 as select v; end;//
delimiter ;//
-- error 1351
call p1();
drop procedure p1;

#
# updateablity should be transitive
#
create table t1 (col1 int,col2 char(22));
insert into t1 values(5,'Hello, world of views');
create view v1 as select * from t1;
create view v2 as select * from v1;
update v2 set col2='Hello, view world';
select * from t1;
drop view v2, v1;
drop table t1;

#
# check 'use index' on view with temporary table
#
create table t1 (a int, b int);
create view v1 as select a, sum(b) from t1 group by a;
-- error 1072
select b from v1 use index (some_index) where b=1;
drop view v1;
drop table t1;

#
# using VIEW fields several times in query resolved via temporary tables
#
create table t1 (col1 char(5),col2 char(5));
create view v1 (col1,col2) as select col1,col2 from t1;
insert into v1 values('s1','p1'),('s1','p2'),('s1','p3'),('s1','p4'),('s2','p1'),('s3','p2'),('s4','p4');
select distinct first.col2 from t1 first where first.col2 in (select second.col2 from t1 second where second.col1<>first.col1);
select distinct first.col2 from v1 first where first.col2 in (select second.col2 from t1 second where second.col1<>first.col1);
drop view v1;
drop table t1;

#
# Test of view updatebility in prepared statement
#
create table t1 (a int);
create view v1 as select a from t1;
insert into t1 values (1);

#update
SET @v0 = '2';
PREPARE stmt FROM 'UPDATE v1 SET a = ?';
EXECUTE stmt USING @v0;
DEALLOCATE PREPARE stmt;

#insert without field list
SET @v0 = '3';
PREPARE stmt FROM 'insert into v1 values (?)';
EXECUTE stmt USING @v0;
DEALLOCATE PREPARE stmt;

#insert with field list
SET @v0 = '4';
PREPARE stmt FROM 'insert into v1 (a) values (?)';
EXECUTE stmt USING @v0;
DEALLOCATE PREPARE stmt;

select * from t1;

drop view v1;
drop table t1;

#
# error on preparation
#
-- error 1096
CREATE VIEW v02 AS SELECT * FROM DUAL;
SHOW TABLES;

#
# EXISTS with UNION VIEW
#
CREATE VIEW v1 AS SELECT EXISTS (SELECT 1 UNION SELECT 2);
select * from v1;
drop view v1;

#
# using VIEW where table is required
#
create table t1 (col1 int,col2 char(22));
create view v1 as select * from t1;
-- error 1347
create index i1 on v1 (col1);
drop view v1;
drop table t1;

#
# connection_id(), pi(), current_user(), version() representation test
#
CREATE VIEW v1 (f1,f2,f3,f4) AS SELECT connection_id(), pi(), current_user(), version();
SHOW CREATE VIEW v1;
drop view v1;

#
# VIEW built over UNION
#
create table t1 (s1 int);
create table t2 (s2 int);
insert into t1 values (1), (2);
insert into t2 values (2), (3);
create view v1 as select * from t1,t2 union all select * from t1,t2;
select * from v1;
drop view v1;
drop tables t1, t2;

#
# Aggregate functions in view list
#
create table t1 (col1 int);
insert into t1 values (1);
create view v1 as select count(*) from t1;
insert into t1 values (null);
select * from v1;
drop view v1;
drop table t1;

#
# Showing VIEW with VIEWs in subquery
#
create table t1 (a int);
create table t2 (a int);
create view v1 as select a from t1;
create view v2 as select a from t2 where a in (select a from v1);
show create view v2;
drop view v2, v1;
drop table t1, t2;

#
# SHOW VIEW view with name with spaces
#
CREATE VIEW `v 1` AS select 5 AS `5`;
show create view `v 1`;
drop view `v 1`;

#
# Removing database with .frm archives
#
create database mysqltest;
create table mysqltest.t1 (a int, b int);
create view mysqltest.v1 as select a from mysqltest.t1;
alter view mysqltest.v1 as select b from mysqltest.t1;
alter view mysqltest.v1 as select a from mysqltest.t1;
drop database mysqltest;

#
# VIEW with full text
#
CREATE TABLE t1 (c1 int not null auto_increment primary key, c2 varchar(20), fulltext(c2));
insert into t1 (c2) VALUES ('real Beer'),('Water'),('Kossu'),('Coca-Cola'),('Vodka'),('Wine'),('almost real Beer');
select * from t1 WHERE match (c2) against ('Beer');
CREATE VIEW v1 AS SELECT  * from t1 WHERE match (c2) against ('Beer');
select * from v1;
drop view v1;
drop table t1;

#
# distinct in temporary table with a VIEW
#
create table t1 (a int);
insert into t1 values (1),(1),(2),(2),(3),(3);
create view v1 as select a from t1;
select distinct a from v1;
select distinct a from v1 limit 2;
select distinct a from t1 limit 2;
prepare stmt1 from "select distinct a from v1 limit 2";
execute stmt1;
execute stmt1;
deallocate prepare stmt1;
drop view v1;
drop table t1;

#
# aggregate function of aggregate function
#
create table t1 (tg_column bigint);
create view v1 as select count(tg_column) as vg_column from t1;
select avg(vg_column) from v1;
drop view v1;
drop table t1;

#
# VIEW of VIEW with column renaming
#
create table t1 (col1 bigint not null, primary key (col1));
create table t2 (col1 bigint not null, key (col1));
create view v1 as select * from t1;
create view v2 as select * from t2;
insert into v1 values (1);
insert into v2 values (1);
create view v3 (a,b) as select v1.col1 as a, v2.col1 as b from v1, v2 where v1.col1 = v2.col1;
select * from v3;
show create view v3;
drop view v3, v2, v1;
drop table t2, t1;

#
# VIEW based on functions with  complex names
#
create function `f``1` () returns int return 5;
create view v1 as select test.`f``1` ();
show create view v1;
select * from v1;
drop view v1;
drop function `f``1`;

#
# tested problem when function name length close to ALIGN_SIZE
#
create function x () returns int return 5;
create view v1 as select x ();
select * from v1;
drop view v1;
drop function x;

#
# VIEW with collation
#
create table t2 (col1 char collate latin1_german2_ci);
create view v2 as select col1 collate latin1_german1_ci from t2;
show create view v2;
show create view v2;
drop view v2;
drop table t2;

#
# order by refers on integer field
#
create table t1 (a int);
insert into t1 values (1), (2);
create view v1 as select 5 from t1 order by 1;
select * from v1;
drop view v1;
drop table t1;

#
# VIEW over droped function
#
create function x1 () returns int return 5;
create table t1 (s1 int);
create view v1 as select x1() from t1;
drop function x1;
-- error 1305
select * from v1;
--replace_column 12 # 13 #
show table status;
--replace_column 12 # 13 #
show table status;
drop view v1;
drop table t1;

#
# VIEW with floating point (long bumber) as column
#
create view v1 as select 99999999999999999999999999999999999999999999999999999 as col1;
show create view v1;
drop view v1;

#
# VIEWs with national characters
#
create table t<> (c<> char);
create view v<> as select c<> from t<>;
insert into v<> values ('<27>');
select * from v<>;
drop view v<>;
drop table t<>;

#
# problem with used_tables() of outer reference resolved in VIEW
#
create table t1 (a int, b int);
insert into t1 values (1,2), (1,3), (2,4), (2,5), (3,10);
create view v1(c) as select a+1 from t1 where b >= 4;
select c from v1 where exists (select * from t1 where a=2 and b=c);
drop view v1;
drop table t1;

#
# view with cast operation
#
create view v1 as select cast(1 as char(3));
show create view v1;
select * from v1;
drop view v1;

#
# bug handlimg from VIEWs
#
create view v1 as select 'a',1;
create view v2 as select * from v1 union all select * from v1;
create view v3 as select * from v2 where 1 = (select `1` from v2);
create view v4 as select * from v3;
-- error 1242
select * from v4;
drop view v4, v3, v2, v1;

#
# VIEW over SELECT with prohibited clauses
#
-- error 1350
create view v1 as select 5 into @w;
-- error 1350
create view v1 as select 5 into outfile 'ttt';
create table t1 (a int);
-- error 1350
create view v1 as select a from t1 procedure analyse();
drop table t1;

#
# INSERT into VIEW with ON DUPLICATE
#
create table t1 (s1 int, primary key (s1));
create view v1 as select * from t1;
insert into v1 values (1) on duplicate key update s1 = 7;
insert into v1 values (1) on duplicate key update s1 = 7;
select * from t1;
drop view v1;
drop table t1;

#
# test of updating and fetching from the same table check
#
create table t1 (col1 int);
create table t2 (col1 int);
create view v1 as select * from t1;
create view v2 as select * from v1;
-- error 1093
update v2 set col1 = (select max(col1) from v1);
#update v2,t2 set v2.col1 = (select max(col1) from v1) where v2.col1 = t2.col1;
-- error 1093
delete from v2 where col1 = (select max(col1) from v1);
#delete v2 from v2,t2 where (select max(col1) from v1) > 0 and v2.col1 = t2.col1;
-- error 1093
insert into v2 values ((select max(col1) from v1));
drop view v2,v1;
drop table t1,t2;

#
# HANDLER with VIEW
#
create table t1 (s1 int);
create view v1 as select * from t1;
-- error 1347
handler v1 open as xx;
drop view v1;
drop table t1;

#
# view with WHERE in nested join
#
create table t1(a int);
insert into t1 values (0), (1), (2), (3);
create table t2 (a int);
insert into t2 select a from t1 where a > 1;
create view v1 as select a from t1 where a > 1;
select * from t1 left join (t2 as t, v1) on v1.a=t1.a;
select * from t1 left join (t2 as t, t2) on t2.a=t1.a;
drop view v1;
drop table t1, t2;

#
# Collation with view update
#
create table t1 (s1 char);
create view v1 as select s1 collate latin1_german1_ci as s1 from t1;
insert into v1 values ('a');
select * from v1;
update v1 set s1='b';
select * from v1;
update v1,t1 set v1.s1='c' where t1.s1=v1.s1;
select * from v1;
prepare stmt1 from "update v1,t1 set v1.s1=? where t1.s1=v1.s1";
set @arg='d';
execute stmt1 using @arg;
select * from v1;
set @arg='e';
execute stmt1 using @arg;
select * from v1;
deallocate prepare stmt1;
drop view v1;
drop table t1;

#
# test view with LOCK TABLES (work around)
#
create table t1 (a int);
create table t2 (a int);
create view v1 as select * from t1;
lock tables t1 read, v1 read;
select * from v1;
-- error 1100
select * from t2;
drop view v1;
drop table t1, t2;

#
# WITH CHECK OPTION insert/update test
#
create table t1 (a int);
create view v1 as select * from t1 where a < 2 with check option;
# simple insert
insert into v1 values(1);
-- error 1369
insert into v1 values(3);
# simple insert with ignore
insert ignore into v1 values (2),(3),(0);
select * from t1;
# prepare data for next check
delete from t1;
# INSERT SELECT test
insert into v1 SELECT 1;
-- error 1369
insert into v1 SELECT 3;
# prepare data for next check
create table t2 (a int);
insert into t2 values (2),(3),(0);
# INSERT SELECT with ignore test
insert ignore into v1 SELECT a from t2;
select * from t1;
#simple UPDATE test
update v1 set a=-1 where a=0;
-- error 1369
update v1 set a=2 where a=1;
select * from t1;
# prepare data for next check
update v1 set a=0 where a=0;
insert into t2 values (1);
# multiupdate test
update v1,t2 set v1.a=v1.a-1 where v1.a=t2.a;
select * from t1;
# prepare data for next check
update v1 set a=a+1;
# multiupdate with ignore test
update ignore v1,t2 set v1.a=v1.a+1 where v1.a=t2.a;
select * from t1;

drop view v1;
drop table t1, t2;

#
# CASCADED/LOCAL CHECK OPTION test
#
create table t1 (a int);
create view v1 as select * from t1 where a < 2 with check option;
create view v2 as select * from v1 where a > 0 with local check option;
create view v3 as select * from v1 where a > 0 with cascaded check option;
insert into v2 values (1);
insert into v3 values (1);
-- error 1369
insert into v2 values (0);
-- error 1369
insert into v3 values (0);
insert into v2 values (2);
-- error 1369
insert into v3 values (2);
select * from t1;
drop view v3,v2,v1;
drop table t1;

#
# CHECK OPTION with INSERT ... ON DUPLICATE KEY UPDATE
#
create table t1 (a int, primary key (a));
create view v1 as select * from t1 where a < 2 with check option;
insert into v1 values (1) on duplicate key update a=2;
-- error 1369
insert into v1 values (1) on duplicate key update a=2;
insert ignore into v1 values (1) on duplicate key update a=2;
select * from t1;
drop view v1;
drop table t1;

#
# check cyclic referencing protection on altering view
#
create table t1 (s1 int);
create view v1 as select * from t1;
create view v2 as select * from v1;
-- error 1146
alter view v1 as select * from v2;
-- error 1066
alter view v1 as select * from v1;
-- error 1146
create or replace view v1 as select * from v2;
-- error 1066
create or replace view v1 as select * from v1;
drop view v2,v1;
drop table t1;

#
# check altering differ options
#
create table t1 (a int);
create view v1 as select * from t1;
show create view v1;
alter algorithm=undefined view v1 as select * from t1 with check option;
show create view v1;
alter algorithm=merge view v1 as select * from t1 with cascaded check option;
show create view v1;
alter algorithm=temptable view v1 as select * from t1;
show create view v1;
drop view v1;
drop table t1;

#
# updating view with subquery in the WHERE clause
#
create table t1 (s1 int);
create table t2 (s1 int);
create view v2 as select * from t2 where s1 in (select s1 from t1);
insert into v2 values (5);
insert into t1 values (5);
select * from v2;
update v2 set s1 = 0;
select * from v2;
select * from t2;
# check it with check option
alter view v2 as select * from t2 where s1 in (select s1 from t1) with check option;
insert into v2 values (5);
-- error 1369
update v2 set s1 = 1;
insert into t1 values (1);
update v2 set s1 = 1;
select * from v2;
select * from t2;
# scheck how VIEWs with subqueries work with prepared statements
prepare stmt1 from "select * from v2;";
execute stmt1;
insert into t1 values (0);
execute stmt1;
deallocate prepare stmt1;
drop view v2;
drop table t1, t2;

#
# test of substring_index with view
#
create table t1 (t time);
create view v1 as select substring_index(t,':',2) as t from t1;
insert into t1 (t) values ('12:24:10');
select substring_index(t,':',2) from t1;
select substring_index(t,':',2) from v1;
drop view v1;
drop table t1;

#
# test of cascaded check option for whiew without WHERE clause
#
create table t1 (s1 tinyint);
create view v1 as select * from t1 where s1 <> 0 with local check option;
create view v2 as select * from v1 with cascaded check option;
-- error 1369
insert into v2 values (0);
drop view v2, v1;
drop table t1;

#
# inserting single value with check option failed always get error
#
create table t1 (s1 int);
create view v1 as select * from t1 where s1 < 5 with check option;
#single value
-- error 1369
insert ignore into v1 values (6);
#several values
insert ignore into v1 values (6),(3);
select * from t1;
drop view v1;
drop table t1;

#
# changing value by trigger and CHECK OPTION
#
create table t1 (s1 tinyint);
create trigger t1_bi before insert on t1 for each row set new.s1 = 500;
create view v1 as select * from t1 where s1 <> 127 with check option;
-- error 1369
insert into v1 values (0);
select * from v1;
select * from t1;
drop view v1;
drop table t1;