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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
include/master-slave.inc
Warnings:
Note #### Sending passwords in plain text without SSL/TLS is extremely insecure.
Note #### Storing MySQL user name or password information in the connection metadata repository is not secure and is therefore not recommended. Please consider using the USER and PASSWORD connection options for START REPLICA; see the 'START REPLICA Syntax' in the MySQL Manual for more information.
[connection master]
# Create a table with functional index
CREATE TABLE t1 (col1 INT, INDEX ((ABS(col1))));
INSERT INTO t1 VALUES (-12);
# Show the hidden columns so we can see the computed value.
SET SESSION debug="+d,show_hidden_columns";
SELECT * FROM t1;
col1 !hidden!functional_index!0!0
-12 12
SET SESSION debug="-d,show_hidden_columns";
# Sync slave with master, and verify that the table exists on the slave.
include/sync_slave_sql_with_master.inc
# Show the hidden columns so we can see that the computed value is
# reflected on the slave.
SET SESSION debug="+d,show_hidden_columns";
SELECT * FROM t1;
col1 !hidden!functional_index!0!0
-12 12
SET SESSION debug="-d,show_hidden_columns";
EXPLAIN SELECT col1 FROM t1 WHERE ABS(col1) = 12;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ref functional_index functional_index 5 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`col1` AS `col1` from `test`.`t1` where (abs(`col1`) = 12)
SET SESSION debug="+d,show_hidden_columns";
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`col1` int DEFAULT NULL,
`!hidden!functional_index!0!0` int GENERATED ALWAYS AS (abs(`col1`)) VIRTUAL,
KEY `functional_index` ((abs(`col1`)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SET SESSION debug="-d,show_hidden_columns";
[connection master]
DROP TABLE t1;
SET @start_row_image_value= @@session.binlog_row_image;
# Try with various row_image values
SET @@session.binlog_row_image= MINIMAL;
CREATE TABLE t1 (col1 INT, INDEX ((ABS(col1))));
INSERT INTO t1 VALUES (-12);
include/sync_slave_sql_with_master.inc
# Show the hidden columns so we can see that the computed value is
# reflected on the slave.
SET SESSION debug="+d,show_hidden_columns";
SELECT * FROM t1;
col1 !hidden!functional_index!0!0
-12 12
EXPLAIN SELECT col1 FROM t1 WHERE ABS(col1) = 12;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ref functional_index functional_index 5 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`col1` AS `col1` from `test`.`t1` where (abs(`col1`) = 12)
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`col1` int DEFAULT NULL,
`!hidden!functional_index!0!0` int GENERATED ALWAYS AS (abs(`col1`)) VIRTUAL,
KEY `functional_index` ((abs(`col1`)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SET SESSION debug="-d,show_hidden_columns";
[connection master]
DROP TABLE t1;
SET @@session.binlog_row_image= noblob;
CREATE TABLE t1 (col1 INT, INDEX ((ABS(col1))));
INSERT INTO t1 VALUES (-12);
include/sync_slave_sql_with_master.inc
# Show the hidden columns so we can see that the computed value is
# reflected on the slave.
SET SESSION debug="+d,show_hidden_columns";
SELECT * FROM t1;
col1 !hidden!functional_index!0!0
-12 12
EXPLAIN SELECT col1 FROM t1 WHERE ABS(col1) = 12;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ref functional_index functional_index 5 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`col1` AS `col1` from `test`.`t1` where (abs(`col1`) = 12)
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`col1` int DEFAULT NULL,
`!hidden!functional_index!0!0` int GENERATED ALWAYS AS (abs(`col1`)) VIRTUAL,
KEY `functional_index` ((abs(`col1`)))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SET SESSION debug="-d,show_hidden_columns";
[connection master]
DROP TABLE t1;
SET @@session.binlog_row_image= @start_row_image_value;
#
# Bug#28207118 UNIQUE FUNCTIONAL INDEX IS NOT CORRECTLY BEING CONSIDERED
# ON SLAVE.
#
CREATE TABLE t1 (col1 INT, UNIQUE INDEX idx ((col1 + col1)));
include/sync_slave_sql_with_master.inc
INSERT INTO t1 (col1) VALUES (1);
[connection master]
call mtr.add_suppression("Replica SQL for channel '': .*Could not execute Write_rows event on table test.t1");
call mtr.add_suppression("Replica SQL for channel '': .*Error 'Duplicate entry '2'");
call mtr.add_suppression("The replica coordinator and worker threads are stopped, possibly leaving data in inconsistent state");
INSERT INTO t1 (col1) VALUES (1), (2);
[connection slave]
include/wait_for_slave_sql_error.inc [errno=1062]
DELETE FROM t1;
START SLAVE;
Warnings:
Warning 1287 'START SLAVE' is deprecated and will be removed in a future release. Please use START REPLICA instead
[connection master]
INSERT INTO t1 (col1) VALUES (3), (4);
SELECT col1 FROM t1;
col1
1
2
3
4
include/sync_slave_sql_with_master.inc
SELECT col1 FROM t1;
col1
1
2
3
4
[connection master]
DROP TABLE t1;
#
# Bug#28218073 SLAVE CRASHES WHEN AN UPDATE ON SLAVE REFERS TO COLUMN
# USED IN FUNCTIONAL INDEX.
#
CREATE TABLE t(a INT, b INT, UNIQUE INDEX c ((a + b)));
INSERT INTO t VALUES (1, 2);
INSERT INTO t VALUES (2, 3);
INSERT INTO t VALUES (3, 4);
include/sync_slave_sql_with_master.inc
SELECT a, b FROM t;
a b
1 2
2 3
3 4
UPDATE t SET b = 5 WHERE b - a = 1;
ERROR 23000: Duplicate entry '7' for key 't.c'
SELECT a, b FROM t;
a b
1 2
2 3
3 4
[connection master]
DROP TABLE t;
#
# Bug#28218481 UPDATE TABLE ON SLAVE DOESN'T UPDATE WHEN FUNCTIONAL INDEX
# MATCH EXPR IN WHERE.
#
CREATE TABLE t (a INT, b INT, INDEX c ((a + b)));
INSERT INTO t VALUES (3, 5);
INSERT INTO t VALUES (1, 2);
INSERT INTO t VALUES (2, 7);
SELECT a, b FROM t;
a b
3 5
1 2
2 7
UPDATE t SET a = 4 WHERE a + b = 3;
SELECT a, b FROM t;
a b
3 5
4 2
2 7
include/sync_slave_sql_with_master.inc
SELECT a, b FROM t;
a b
3 5
4 2
2 7
UPDATE t SET a = 9 WHERE a + b = 8;
SELECT a, b FROM t;
a b
9 5
4 2
2 7
[connection master]
DROP TABLE t;
#
# Bug#28243453 ASSERTION`MAP->BITMAP&&MAP2->BITMAP&&MAP->N_BITS==MAP2->
# N_BITS' FAILED ON SLAVE
#
CREATE TABLE t(a INT, b INT);
include/sync_slave_sql_with_master.inc
ALTER TABLE t ADD UNIQUE INDEX i ((a + b));
[connection master]
INSERT INTO t VALUES (1, 2);
include/sync_slave_sql_with_master.inc
SELECT a, b FROM t;
a b
1 2
[connection master]
DROP TABLE t;
#
# Bug#29317684 REPLICATION IS SENSITIVE TO ORDER OF HIDDEN COLUMNS FOR
# FUNCTIONAL INDEXES
#
# What we want to see here, is that the order of the columns (both
# hidden and visible) are the same on master and slave, even though
# the columns are created in different order.
#
# Note that this bug is only visible with row-based replication.
SET @@session.sql_log_bin = 0;
CREATE TABLE t (a INT, INDEX ((a+1)));
ALTER TABLE t ADD COLUMN b INT;
SET @@session.sql_log_bin = 1;
[connection slave]
SET @@session.sql_log_bin = 0;
CREATE TABLE t (a INT, b INT, INDEX ((a+1)));
SET @@session.sql_log_bin = 1;
[connection master]
INSERT INTO t VALUES (1, 2);
include/sync_slave_sql_with_master.inc
include/diff_tables.inc [master:test.t,slave:test.t]
[connection master]
DROP TABLE t;
#
# Bug#107366 REPLICATION ERROR WITH HASH_SCAN ROW SEARCH ALGORITHM FOR
# FUNCTIONAL INDEXES
[connection master]
CREATE TABLE t1 (
id INT,
c1 JSON NOT NULL,
c2 INT,
KEY comp ((CAST(c1 AS UNSIGNED ARRAY)))
) ENGINE=InnoDB;
INSERT INTO t1 VALUES(1,'[1046, 2995]',1);
UPDATE t1 SET c2=2;
include/sync_slave_sql_with_master.inc
include/assert.inc [Table t1 was updated]
[connection master]
DROP TABLE t1;
include/rpl_end.inc
|
