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
|
# ----------------------------------------------------
# Tests for the performance schema statement Digests.
# ----------------------------------------------------
# Test case to show behavior of statements digest when
# using a view
# Test requires: sp-protocol/ps-protocol/view-protocol/cursor-protocol disabled
--source include/no_protocol.inc
--source include/not_embedded.inc
--source include/have_perfschema.inc
CREATE TABLE test.v1 (a int, b int);
INSERT INTO test.v1 VALUES (1, 100), (2, 200), (3, 300);
CREATE TABLE test.t1 (a int, b int);
INSERT INTO test.t1 VALUES (1, 100), (2, 200), (3, 300);
TRUNCATE TABLE performance_schema.events_statements_summary_by_digest;
#
# test.v1 is a table.
# Every query here is different, and should have a different digest.
#
EXPLAIN EXTENDED SELECT * from test.v1;
EXPLAIN EXTENDED SELECT * from test.v1 where a = 1;
EXPLAIN EXTENDED SELECT * from test.v1 where b > 100;
EXPLAIN EXTENDED SELECT a, b from test.v1;
EXPLAIN EXTENDED SELECT b, a from test.v1;
SELECT * from test.v1;
SELECT * from test.v1 where a = 1;
SELECT * from test.v1 where b > 100;
SELECT a, b from test.v1;
SELECT b, a from test.v1;
--echo #
--echo # DIGESTS SEEN ON TABLE
--echo #
SELECT SCHEMA_NAME, DIGEST_TEXT, COUNT_STAR
FROM performance_schema.events_statements_summary_by_digest
ORDER BY DIGEST_TEXT;
DROP TABLE test.v1;
CREATE VIEW test.v1 AS SELECT * FROM test.t1;
#
# test.v1 is now a view.
# the query digests should be unchanged.
#
EXPLAIN EXTENDED SELECT * from test.v1;
EXPLAIN EXTENDED SELECT * from test.v1 where a = 1;
EXPLAIN EXTENDED SELECT * from test.v1 where b > 100;
EXPLAIN EXTENDED SELECT a, b from test.v1;
EXPLAIN EXTENDED SELECT b, a from test.v1;
SELECT * from test.v1;
SELECT * from test.v1 where a = 1;
SELECT * from test.v1 where b > 100;
SELECT a, b from test.v1;
SELECT b, a from test.v1;
--echo #
--echo # DIGESTS SEEN ON VIEW
--echo #
SELECT SCHEMA_NAME, DIGEST_TEXT, COUNT_STAR
FROM performance_schema.events_statements_summary_by_digest
ORDER BY DIGEST_TEXT;
DROP VIEW test.v1;
DROP TABLE test.t1;
# ----------------------------------------------------
# Tests for the performance schema statement Digests.
# ----------------------------------------------------
# Test case to show behavior of statements digest when
# using a view
--source include/not_embedded.inc
--source include/have_perfschema.inc
--source include/no_protocol.inc
CREATE TABLE test.v1 (a int, b int);
INSERT INTO test.v1 VALUES (1, 100), (2, 200), (3, 300);
CREATE TABLE test.t1 (a int, b int);
INSERT INTO test.t1 VALUES (1, 100), (2, 200), (3, 300);
TRUNCATE TABLE performance_schema.events_statements_summary_by_digest;
#
# test.v1 is a table.
# Every query here is different, and should have a different digest.
#
EXPLAIN SELECT * from test.v1;
EXPLAIN SELECT * from test.v1 where a = 1;
EXPLAIN SELECT * from test.v1 where b > 100;
EXPLAIN SELECT a, b from test.v1;
EXPLAIN SELECT b, a from test.v1;
SELECT * from test.v1;
SELECT * from test.v1 where a = 1;
SELECT * from test.v1 where b > 100;
SELECT a, b from test.v1;
SELECT b, a from test.v1;
--echo #
--echo # DIGESTS SEEN ON TABLE
--echo #
SELECT SCHEMA_NAME, DIGEST, DIGEST_TEXT, COUNT_STAR
FROM performance_schema.events_statements_summary_by_digest
ORDER BY DIGEST_TEXT;
DROP TABLE test.v1;
CREATE VIEW test.v1 AS SELECT * FROM test.t1;
#
# test.v1 is now a view.
# the query digests should be unchanged.
#
EXPLAIN SELECT * from test.v1;
EXPLAIN SELECT * from test.v1 where a = 1;
EXPLAIN SELECT * from test.v1 where b > 100;
EXPLAIN SELECT a, b from test.v1;
EXPLAIN SELECT b, a from test.v1;
SELECT * from test.v1;
SELECT * from test.v1 where a = 1;
SELECT * from test.v1 where b > 100;
SELECT a, b from test.v1;
SELECT b, a from test.v1;
--echo #
--echo # DIGESTS SEEN ON VIEW
--echo #
SELECT SCHEMA_NAME, DIGEST, DIGEST_TEXT, COUNT_STAR
FROM performance_schema.events_statements_summary_by_digest
ORDER BY DIGEST_TEXT;
DROP VIEW test.v1;
DROP TABLE test.t1;
|
