1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
drop table if exists t1;
create table t1 (n int);
create view v1 as select * from t1;
insert delayed into v1 values (1);
ERROR HY000: 'test.v1' is not BASE TABLE
drop table t1;
drop view v1;
CREATE DATABASE meow;
CREATE TABLE table_target ( mexs_id CHAR(8), messzeit TIMESTAMP, PRIMARY KEY (mexs_id));
CREATE TABLE table_target2 ( mexs_id CHAR(8), messzeit TIMESTAMP, PRIMARY KEY (mexs_id));
CREATE TABLE table_target3 ( mexs_id CHAR(8), messzeit TIMESTAMP, PRIMARY KEY (mexs_id));
CREATE VIEW view_target2 AS SELECT mexs_id,messzeit FROM table_target2;
CREATE SQL SECURITY INVOKER VIEW view_target3 AS SELECT mexs_id,messzeit FROM table_target3;
CREATE TABLE table_stations ( mexs_id VARCHAR(8), icao VARCHAR(4), country CHAR(2), PRIMARY KEY (mexs_id), UNIQUE KEY icao (icao), KEY country (country), CONSTRAINT stations_ibfk_8 FOREIGN KEY (country) REFERENCES countries (country) ON UPDATE CASCADE);
INSERT INTO table_stations VALUES ('87654321','XXXX','YY');
CREATE TABLE table_countries ( country CHAR(2), iso_short_en VARCHAR(64), PRIMARY KEY (country));
INSERT INTO table_countries VALUES ('YY','Entenhausen');
CREATE ALGORITHM=MERGE SQL SECURITY INVOKER VIEW view_stations AS select table_stations.mexs_id AS mexs_id, table_stations.icao AS icao, table_stations.country AS landescode from (table_stations join table_countries on((table_stations.country = table_countries.country)));
CREATE TABLE table_source ( id varchar(4), datetime TIMESTAMP, PRIMARY KEY (id));
INSERT INTO table_source VALUES ('XXXX','2006-07-12 07:50:00');
GRANT SELECT ON table_source TO user20989@localhost;
GRANT SELECT ON table_countries TO user20989@localhost;
GRANT SELECT ON table_stations TO user20989@localhost;
GRANT SELECT ON view_stations TO user20989@localhost;
GRANT SELECT ON table_target TO user20989@localhost;
GRANT SELECT ON table_target2 TO user20989@localhost;
GRANT INSERT,DELETE,SELECT ON view_target3 TO user20989@localhost;
REPLACE INTO table_target
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN table_target AS old
USING (mexs_id);
ERROR 42000: INSERT,DELETE command denied to user 'user20989'@'localhost' for table 'table_target'
REPLACE INTO view_target2
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN view_target2 AS old
USING (mexs_id);
ERROR 42000: INSERT,DELETE command denied to user 'user20989'@'localhost' for table 'view_target2'
REPLACE INTO view_target3
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN view_target3 AS old
USING (mexs_id);
ERROR HY000: View 'meow.view_target3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
GRANT INSERT,DELETE ON table_target TO user20989@localhost;
GRANT INSERT,DELETE,SELECT ON view_target2 TO user20989@localhost;
GRANT INSERT,DELETE,SELECT ON table_target3 TO user20989@localhost;
REPLACE INTO table_target
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN table_target AS old
USING (mexs_id);
REPLACE INTO table_target2 VALUES ('00X45Y78','2006-07-12 07:50:00');
ERROR 42000: INSERT,DELETE command denied to user 'user20989'@'localhost' for table 'table_target2'
REPLACE INTO view_target2 VALUES ('12X45Y78','2006-07-12 07:50:00');
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN view_target2 AS old
USING (mexs_id);
mexs_id messzeit
87654321 2006-07-12 07:50:00
REPLACE INTO view_target2
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN view_target2 AS old
USING (mexs_id);
REPLACE INTO view_target3
SELECT stations.mexs_id AS mexs_id, datetime AS messzeit
FROM table_source
INNER JOIN view_stations AS stations
ON table_source.id = stations.icao
LEFT JOIN view_target3 AS old
USING (mexs_id);
SELECT * FROM table_target;
mexs_id messzeit
87654321 2006-07-12 07:50:00
SELECT * FROM view_target2;
mexs_id messzeit
12X45Y78 2006-07-12 07:50:00
87654321 2006-07-12 07:50:00
SELECT * FROM view_target3;
mexs_id messzeit
87654321 2006-07-12 07:50:00
DROP VIEW view_stations;
DROP TABLE table_source;
DROP TABLE table_countries;
DROP TABLE table_stations;
DROP TABLE table_target;
DROP TABLE table_target2;
DROP TABLE table_target3;
DROP VIEW view_target2;
DROP VIEW view_target3;
DROP USER user20989@localhost;
DROP DATABASE meow;
connection: default
set low_priority_updates=1;
drop table if exists t1;
create table t1 (a int, b int, unique key t1$a (a));
lock table t1 read;
connection: update
set low_priority_updates=1;
show variables like 'low_priority_updates';
Variable_name Value
low_priority_updates ON
insert into t1 values (1, 2) ON DUPLICATE KEY UPDATE b = 2;;
connection: select
select * from t1;
a b
connection: default
select * from t1;
a b
unlock tables;
drop table t1;
set low_priority_updates=default;
|