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
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
CREATE TABLE t1 (a INT PRIMARY KEY)|
BEGIN NOT ATOMIC
INSERT INTO t1 VALUES (1);
INSERT INTO t1 VALUES (2);
INSERT INTO t1 VALUES (3);
END|
SELECT * FROM t1|
a
1
2
3
PREPARE stmt FROM "BEGIN NOT ATOMIC
INSERT INTO t1 VALUES (4);
INSERT INTO t1 VALUES (5);
INSERT INTO t1 VALUES (?);
END";
SET @val = 6|
reset master|
EXECUTE stmt USING @val|
SELECT * FROM t1|
a
1
2
3
4
5
6
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 # Gtid # # BEGIN GTID #-#-#
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (4)
master-bin.000001 # Query # # COMMIT
master-bin.000001 # Gtid # # BEGIN GTID #-#-#
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (5)
master-bin.000001 # Query # # COMMIT
master-bin.000001 # Gtid # # BEGIN GTID #-#-#
master-bin.000001 # Query # # use `test`; INSERT INTO t1 VALUES (6)
master-bin.000001 # Query # # COMMIT
DROP TABLE t1|
CREATE DATABASE mysqltest1|
CREATE PROCEDURE mysqltest1.sp1()
BEGIN
PREPARE stmt FROM "BEGIN NOT ATOMIC CREATE TABLE t1 AS SELECT DATABASE(); END";
EXECUTE stmt;
END|
CALL mysqltest1.sp1()|
SELECT * FROM mysqltest1.t1|
DATABASE()
mysqltest1
USE mysqltest1|
DROP DATABASE mysqltest1|
BEGIN NOT ATOMIC CREATE TABLE t1(a int); END|
ERROR 3D000: No database selected
BEGIN NOT ATOMIC SET @a=1; CREATE TABLE test.t1(a int); END|
USE test|
show tables|
Tables_in_test
t1
drop table t1|
/**/ if (select count(*) from information_schema.tables
where table_schema='test' and table_name='t1') = 0
then
create table t1 (a int);
end if|
show tables|
Tables_in_test
t1
/**/ if (select count(*) from information_schema.tables
where table_schema='test' and table_name='t1') = 0
then
create table t1 (a int);
end if|
show tables|
Tables_in_test
t1
case (select table_name from information_schema.tables where table_schema='test')
when 't1' then create table t2 (b int);
when 't2' then create table t3 (b int);
else signal sqlstate '42S02';
end case|
show tables|
Tables_in_test
t1
t2
case
when database() = 'test' then create table t3 (test text);
when now() < date'2001-02-03' then create table oops (machine time);
end case|
show tables|
Tables_in_test
t1
t2
t3
loop
create table t4 (a int);
end loop|
ERROR 42S01: Table 't4' already exists
show tables|
Tables_in_test
t1
t2
t3
t4
set @a=0;
repeat
set @a = @a + 1;
until @a > 5
end repeat|
select @a|
@a
6
/**/ while (select count(*) from information_schema.tables where table_schema='test')
do
select concat('drop table ', table_name) into @a
from information_schema.tables where table_schema='test' limit 1;
select @a as 'executing:';
prepare dt from @a;
execute dt;
end while|
executing: drop table t1
executing: drop table t2
executing: drop table t3
executing: drop table t4
create table t1 (x int)|
create function fn(a int) returns int
begin
insert t1 values (a+7);
return a+8;
end|
reset master|
/**/ if fn(9) > 5 then
select 1;
end if|
1
1
prepare stmt from "if fn(?) > 6 then
begin
declare a int;
set a=?*2;
insert t1 values(a+?);
end;
end if"|
set @a=1, @b=2, @c=3|
execute stmt using @a, @b, @c|
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; SELECT `test`.`fn`(9)
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; SELECT `test`.`fn`(1)
master-bin.000001 # Gtid # # BEGIN GTID #-#-#
master-bin.000001 # Query # # use `test`; insert t1 values( NAME_CONST('a',4)+3)
master-bin.000001 # Query # # COMMIT
drop function fn|
drop table t1|
begin not atomic select @@sql_mode; end|
@@sql_mode
NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
create table t1 (a int)|
select a from t1 having a > 1|
a
begin not atomic select a from t1 having a > 1; end|
a
drop table t1|
#
# MDEV-8615: Assertion `m_cpp_buf <= begin_ptr &&
# begin_ptr <= m_cpp_buf + m_buf_length' failed in
# Lex_input_stream::body_utf8_start
#
b'|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'b'' at line 1
|
