view.test

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

INSERT INTO t1 VALUES(5,'david'); 
INSERT INTO t1 VALUES(6,'kent'); 
INSERT INTO t1 VALUES(7,'carsten'); 
INSERT INTO t1 VALUES(8,'ranger'); 
INSERT INTO t1 VALUES(10,'matt'); 
CREATE TABLE t2 (col1 int, col2 int, col3 char(1)); 
INSERT INTO t2 VALUES (1,1,'y'); 
INSERT INTO t2 VALUES (1,2,'y'); 
INSERT INTO t2 VALUES (2,1,'n'); 
INSERT INTO t2 VALUES (3,1,'n'); 
INSERT INTO t2 VALUES (4,1,'y'); 
INSERT INTO t2 VALUES (4,2,'n'); 
INSERT INTO t2 VALUES (4,3,'n'); 
INSERT INTO t2 VALUES (6,1,'n'); 
INSERT INTO t2 VALUES (8,1,'y');
 
CREATE VIEW v1 AS SELECT * FROM t1; 

SELECT a.col1,a.col2,b.col2,b.col3 
  FROM t1 a LEFT JOIN t2 b ON a.col1=b.col1
    WHERE b.col2 IS NULL OR 
          b.col2=(SELECT MAX(col2) FROM t2 b WHERE b.col1=a.col1);

SELECT a.col1,a.col2,b.col2,b.col3 
  FROM v1 a LEFT JOIN t2 b ON a.col1=b.col1
    WHERE b.col2 IS NULL OR 
          b.col2=(SELECT MAX(col2) FROM t2 b WHERE b.col1=a.col1);

CREATE VIEW v2 AS SELECT * FROM t2; 

SELECT a.col1,a.col2,b.col2,b.col3
  FROM v2 b RIGHT JOIN v1 a ON a.col1=b.col1
    WHERE b.col2 IS NULL OR
          b.col2=(SELECT MAX(col2) FROM v2 b WHERE b.col1=a.col1); 

# Tests from the report for bug #6107

SELECT a.col1,a.col2,b.col2,b.col3
  FROM v2 b RIGHT JOIN v1 a ON a.col1=b.col1
    WHERE a.col1 IN (1,5,9) AND
         (b.col2 IS NULL OR
          b.col2=(SELECT MAX(col2) FROM v2 b WHERE b.col1=a.col1)); 

CREATE VIEW v3 AS SELECT * FROM t1 WHERE col1 IN (1,5,9);

SELECT a.col1,a.col2,b.col2,b.col3
  FROM v2 b RIGHT JOIN v3 a ON a.col1=b.col1
    WHERE b.col2 IS NULL OR
          b.col2=(SELECT MAX(col2) FROM v2 b WHERE b.col1=a.col1); 
 
DROP VIEW v1,v2,v3;
DROP TABLE t1,t2;

#
# BUG#8490 Select from views containing subqueries causes server to hang 
# forever.
#
create table t1 as select 1 A union select 2 union select 3;
create table t2 as select * from t1;
create view v1 as select * from t1 where a in (select * from t2);
select * from v1 A, v1 B where A.a = B.a;
create table t3 as select a a,a b from t2;
create view v2 as select * from t3 where 
  a in (select * from t1) or b in (select * from t2);
select * from v2 A, v2 B where A.a = B.b;
drop view v1, v2;
drop table t1, t2, t3;

#
# Test case for bug #8528: select from view over multi-table view
#
CREATE TABLE t1 (a int);
CREATE TABLE t2 (b int);
INSERT INTO t1 VALUES (1), (2), (3), (4);
INSERT INTO t2 VALUES (4), (2);

CREATE VIEW v1 AS SELECT * FROM t1,t2 WHERE t1.a=t2.b;
SELECT * FROM v1;
CREATE VIEW v2 AS SELECT * FROM v1;
SELECT * FROM v2;

DROP VIEW v2,v1;

DROP TABLE t1, t2;
#
# Correct restoring view name in SP table locking BUG#9758
#
create table t1 (a int);
create view v1 as select sum(a) from t1 group by a;
delimiter //;
create procedure p1()
begin
select * from v1;
end//
delimiter ;//
call p1();
call p1();
drop procedure p1;
drop view v1;
drop table t1;

#
# Bug#7422 "order by" doesn't work
#
CREATE TABLE t1(a char(2) primary key, b char(2));
CREATE TABLE t2(a char(2), b char(2), index i(a));
INSERT INTO t1 VALUES ('a','1'), ('b','2');
INSERT INTO t2 VALUES ('a','5'), ('a','6'), ('b','5'), ('b','6');
CREATE VIEW v1 AS
  SELECT t1.b as c, t2.b as d FROM t1,t2 WHERE t1.a=t2.a;
SELECT d, c FROM v1 ORDER BY d,c;
DROP VIEW v1;
DROP TABLE t1, t2;
#
# using sum(distinct ) & avg(distinct ) in views (BUG#7015)
#
create table t1 (s1 int);
create view  v1 as select sum(distinct s1) from t1;
select * from v1;
drop view v1;
create view  v1 as select avg(distinct s1) from t1;
select * from v1;
drop view v1;
drop table t1;

#
# using cast(... as decimal) in views (BUG#11387);
#
create view v1 as select cast(1 as decimal);
select * from v1;
drop view v1;

#
# Bug#11298 insert into select from VIEW produces incorrect result when 
#           using ORDER BY
create table t1(f1 int);
create table t2(f2 int);
insert into t1 values(1),(2),(3);
insert into t2 values(1),(2),(3);
create view v1 as select * from t1,t2 where f1=f2;
create table t3 (f1 int, f2 int);
insert into t3 select * from v1 order by 1;
select * from t3;
drop view v1;
drop table t1,t2,t3;

#
# Generation unique names for columns, and correct names check (BUG#7448)
#
# names with ' and \
create view v1 as select '\\','\\shazam';
select * from v1;
drop view v1;
create view v1 as select '\'','\shazam';
select * from v1;
drop view v1;
# autogenerated names differ by case only
create view v1 as select 'k','K';
select * from v1;
drop view v1;
create table t1 (s1 int);
# same autogenerated names
create view v1 as select s1, 's1' from t1;
select * from v1;
drop view v1;
create view v1 as select 's1', s1 from t1;
select * from v1;
drop view v1;
# set name as one of expected autogenerated
create view v1 as select 's1', s1, 1 as My_exp_s1 from t1;
select * from v1;
drop view v1;
create view v1 as select 1 as My_exp_s1, 's1', s1  from t1;
select * from v1;
drop view v1;
# set name conflict with autogenerated names
create view v1 as select 1 as s1, 's1', 's1' from t1;
select * from v1;
drop view v1;
create view v1 as select 's1', 's1', 1 as s1 from t1;
select * from v1;
drop view v1;
# underlying field name conflict with autogenerated names
create view v1 as select s1, 's1', 's1' from t1;
select * from v1;
drop view v1;
create view v1 as select 's1', 's1', s1 from t1;
select * from v1;
drop view v1;
# underlying field name conflict with set name
-- error 1060
create view v1 as select 1 as s1, 's1', s1 from t1;
-- error 1060
create view v1 as select 's1', s1, 1 as s1 from t1;
drop table t1;
# set names differ by case only
-- error 1060
create view v1(k, K) as select 1,2;

#
# using time_format in view (BUG#7521)
#
create view v1 as SELECT TIME_FORMAT(SEC_TO_TIME(3600),'%H:%i') as t;
select * from v1;
drop view v1;

#
# evaluation constant functions in WHERE (BUG#4663)
#
create table t1 (a timestamp default now());
create table t2 (b timestamp default now());
create view v1 as select a,b,t1.a < now() from t1,t2 where t1.a < now();
SHOW CREATE VIEW v1;
drop view v1;
drop table t1, t2;
CREATE TABLE t1 ( a varchar(50) );
CREATE VIEW v1 AS SELECT * FROM t1 WHERE a = CURRENT_USER();
SHOW CREATE VIEW v1;
DROP VIEW v1;
CREATE VIEW v1 AS SELECT * FROM t1 WHERE a = VERSION();
SHOW CREATE VIEW v1;
DROP VIEW v1;
CREATE VIEW v1 AS SELECT * FROM t1 WHERE a = DATABASE();
SHOW CREATE VIEW v1;
DROP VIEW v1;
DROP TABLE t1;

#
# checking views after some view with error (BUG#11337)
#
CREATE TABLE t1 (col1 time);
CREATE TABLE t2 (col1 time);
CREATE VIEW v1 AS SELECT CONVERT_TZ(col1,'GMT','MET') FROM t1;
CREATE VIEW v2 AS SELECT CONVERT_TZ(col1,'GMT','MET') FROM t2;
CREATE VIEW v3 AS SELECT CONVERT_TZ(col1,'GMT','MET') FROM t1;
CREATE VIEW v4 AS SELECT CONVERT_TZ(col1,'GMT','MET') FROM t2;
CREATE VIEW v5 AS SELECT CONVERT_TZ(col1,'GMT','MET') FROM t1;
CREATE VIEW v6 AS SELECT CONVERT_TZ(col1,'GMT','MET') FROM t2;
DROP TABLE t1;
CHECK TABLE v1, v2, v3, v4, v5, v6;
drop view v1, v2, v3, v4, v5, v6;
drop table t2;

--disable_warnings
drop function if exists f1;
drop function if exists f2;
--enable_warnings
CREATE TABLE t1 (col1 time);
CREATE TABLE t2 (col1 time);
CREATE TABLE t3 (col1 time);
create function f1 () returns int return (select max(col1) from t1);
create function f2 () returns int return (select max(col1) from t2);
CREATE VIEW v1 AS SELECT f1() FROM t3;
CREATE VIEW v2 AS SELECT f2() FROM t3;
CREATE VIEW v3 AS SELECT f1() FROM t3;
CREATE VIEW v4 AS SELECT f2() FROM t3;
CREATE VIEW v5 AS SELECT f1() FROM t3;
CREATE VIEW v6 AS SELECT f2() FROM t3;
drop function f1;
CHECK TABLE v1, v2, v3, v4, v5, v6;
create function f1 () returns int return (select max(col1) from t1);
DROP TABLE t1;
CHECK TABLE v1, v2, v3, v4, v5, v6;
drop function f1;
drop function f2;
drop view v1, v2, v3, v4, v5, v6;
drop table t2,t3;

#
# bug #11325 Wrong date comparison in views
#
create table t1 (f1 date);
insert into t1 values ('2005-01-01'),('2005-02-02');
create view v1 as select * from t1;
select * from v1 where f1='2005.02.02';
select * from v1 where '2005.02.02'=f1;
drop view v1;
drop table t1;

#
# using encrypt & substring_index in view (BUG#7024)
#
CREATE VIEW v1 AS SELECT ENCRYPT("dhgdhgd");
disable_result_log;
SELECT * FROM v1;
enable_result_log;
drop view v1;
CREATE VIEW v1 AS SELECT SUBSTRING_INDEX("dkjhgd:kjhdjh", ":", 1);
SELECT * FROM v1;
drop view v1;

#
# hide underlying tables names in case of imposibility to update (BUG#10773)
#
create table t1 (f59 int, f60 int, f61 int);
insert into t1 values (19,41,32);
create view v1 as select f59, f60 from t1 where f59 in  
         (select f59 from t1);
-- error 1288
update v1 set f60=2345;
-- error 1443
update t1 set f60=(select max(f60) from v1);
drop view v1;
drop table t1;

#
# Using var_samp with view (BUG#10651)
#
create table t1 (s1 int);
create view v1 as select var_samp(s1) from t1;
show create view v1;
drop view v1;
drop table t1;

#
# Correct inserting data check (absence of default value) for view
# underlying tables (BUG#6443)
#
set sql_mode='strict_all_tables';
CREATE TABLE t1 (col1 INT NOT NULL, col2 INT NOT NULL);
CREATE VIEW v1 (vcol1) AS SELECT col1 FROM t1;
CREATE VIEW v2 (vcol1) AS SELECT col1 FROM t1 WHERE col2 > 2;
-- error 1364
INSERT INTO t1 (col1) VALUES(12);
-- error 1423
INSERT INTO v1 (vcol1) VALUES(12);
-- error 1423
INSERT INTO v2 (vcol1) VALUES(12);
set sql_mode=default;
drop view v2,v1;
drop table t1;

#
# Bug#11399 Use an alias in a select statement on a view
#
create table t1 (f1 int);
insert into t1 values (1);
create view v1 as select f1 from t1;
select f1 as alias from v1;
drop view v1;
drop table t1;

#
# Test for bug #6120: SP cache to be invalidated when altering a view
#

CREATE TABLE t1 (s1 int, s2 int);
INSERT  INTO t1 VALUES (1,2);
CREATE VIEW v1 AS SELECT s2 AS s1, s1 AS s2 FROM t1;
SELECT * FROM v1;
CREATE PROCEDURE p1 () SELECT * FROM v1;
CALL p1();
ALTER VIEW v1 AS SELECT s1 AS s1, s2 AS s2 FROM t1;
CALL p1();
DROP VIEW v1;
CREATE VIEW v1 AS SELECT s2 AS s1, s1 AS s2 FROM t1;
CALL p1();

DROP PROCEDURE p1;
DROP VIEW v1;
DROP TABLE t1;

#
# Test for bug #11709 View was ordered by wrong column
#
create table t1 (f1 int, f2 int);
create view v1 as select f1 as f3, f2 as f1 from t1;
insert into t1 values (1,3),(2,1),(3,2);
select * from v1 order by f1;
drop view v1;
drop table t1;

#
# Test for bug #11771: wrong query_id in SELECT * FROM <view>
#
CREATE TABLE t1 (f1 char);
INSERT INTO t1 VALUES ('A');
CREATE VIEW  v1 AS SELECT * FROM t1;

INSERT INTO t1 VALUES('B');
SELECT * FROM v1;
SELECT * FROM t1;

DROP VIEW v1;
DROP TABLE t1;

#
# opening table in correct locking mode (BUG#9597)
#
CREATE TABLE t1 ( bug_table_seq   INTEGER NOT NULL);
CREATE OR REPLACE VIEW v1 AS SELECT * from t1;
DROP PROCEDURE IF EXISTS p1;
delimiter //;
CREATE PROCEDURE p1 ( )
BEGIN
        DO (SELECT  @next := IFNULL(max(bug_table_seq),0) + 1 FROM v1);
        INSERT INTO t1 VALUES (1);
END //
delimiter ;//
CALL p1();
DROP PROCEDURE p1;
DROP VIEW v1;
DROP TABLE t1;

#
# Bug #11335 View redefines column types
#
create table t1 (f1 tinyint(1), f2 char(1), f3 varchar(1), f4 geometry, f5 datetime);
create view v1 as select * from t1;
desc v1;
drop view v1;
drop table t1;

#
# Bug #11760 Typo in Item_func_add_time::print() results in NULLs returned
#             subtime() in view
create table t1(f1 datetime);
insert into t1 values('2005.01.01 12:0:0');
create view v1 as select f1, subtime(f1, '1:1:1') as sb from t1;
select * from v1;
drop view v1;
drop table t1;

#
# Test for bug #11412: query over a multitable view with GROUP_CONCAT
#
CREATE TABLE t1 (
  aid int PRIMARY KEY,
  fn varchar(20) NOT NULL,
  ln varchar(20) NOT NULL
);
CREATE TABLE t2 (
  aid int NOT NULL,
  pid int NOT NULL
);
INSERT INTO t1 VALUES(1,'a','b'), (2,'c','d');
INSERT INTO t2 values (1,1), (2,1), (2,2);

CREATE VIEW v1 AS SELECT t1.*,t2.pid FROM t1,t2 WHERE t1.aid = t2.aid;

SELECT pid,GROUP_CONCAT(CONCAT(fn,' ',ln) ORDER BY 1) FROM t1,t2 
  WHERE t1.aid = t2.aid GROUP BY pid;
SELECT pid,GROUP_CONCAT(CONCAT(fn,' ',ln) ORDER BY 1) FROM v1 GROUP BY pid;

DROP VIEW v1;
DROP TABLE t1,t2;

#
# Test for bug #12382: SELECT * FROM view after INSERT command
#

CREATE TABLE t1 (id int PRIMARY KEY, f varchar(255));
CREATE VIEW v1 AS SELECT id, f FROM t1 WHERE id <= 2;
INSERT INTO t1 VALUES (2, 'foo2');
INSERT INTO t1 VALUES (1, 'foo1');

SELECT * FROM v1;
SELECT * FROM v1;

DROP VIEW v1;
DROP TABLE t1;

#
# Test for bug #12470: crash for a simple select from a view defined
#                      as a join over 5 tables

CREATE TABLE t1 (pk int PRIMARY KEY, b int);
CREATE TABLE t2 (pk int PRIMARY KEY, fk int, INDEX idx(fk));
CREATE TABLE t3 (pk int PRIMARY KEY, fk int, INDEX idx(fk));
CREATE TABLE t4 (pk int PRIMARY KEY, fk int, INDEX idx(fk));
CREATE TABLE t5 (pk int PRIMARY KEY, fk int, INDEX idx(fk));
CREATE VIEW v1 AS
  SELECT t1.pk as a FROM t1,t2,t3,t4,t5
    WHERE t1.b IS NULL AND
          t1.pk=t2.fk AND t2.pk=t3.fk AND t3.pk=t4.fk AND t4.pk=t5.fk;

SELECT a FROM v1;

DROP VIEW v1;
DROP TABLE t1,t2,t3,t4,t5;

#
# Bug #12298 Typo in  function name results in erroneous view being created.
#
create view v1 as select timestampdiff(day,'1997-01-01 00:00:00','1997-01-02 00:00:00') as f1;
select * from v1;
drop view v1;

#
# repeatable CREATE VIEW statement BUG#12468
#
create table t1(a int);
create procedure p1() create view v1 as select * from t1;
drop table t1;