blob: fc557da5e777297d76ef6c990645e2cf08925739 (
plain)
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
|
Parsed test spec with 2 sessions
starting permutation: lock assign1 vacuum unlock
pg_advisory_unlock_all
pg_advisory_unlock_all
step lock:
SELECT pg_advisory_lock(1);
pg_advisory_lock
step assign1:
do $$
declare
x text;
begin
select test1.b into x from test1;
delete from test1;
commit;
perform pg_advisory_lock(1);
raise notice 'length(x) = %', length(x);
end;
$$;
<waiting ...>
step vacuum:
VACUUM test1;
step unlock:
SELECT pg_advisory_unlock(1);
pg_advisory_unlock
t
s1: NOTICE: length(x) = 6000
step assign1: <... completed>
starting permutation: lock assign2 vacuum unlock
pg_advisory_unlock_all
pg_advisory_unlock_all
step lock:
SELECT pg_advisory_lock(1);
pg_advisory_lock
step assign2:
do $$
declare
x text;
begin
x := (select test1.b from test1);
delete from test1;
commit;
perform pg_advisory_lock(1);
raise notice 'length(x) = %', length(x);
end;
$$;
<waiting ...>
step vacuum:
VACUUM test1;
step unlock:
SELECT pg_advisory_unlock(1);
pg_advisory_unlock
t
s1: NOTICE: length(x) = 6000
step assign2: <... completed>
starting permutation: lock assign3 vacuum unlock
pg_advisory_unlock_all
pg_advisory_unlock_all
step lock:
SELECT pg_advisory_lock(1);
pg_advisory_lock
step assign3:
do $$
declare
r record;
begin
select * into r from test1;
r.b := (select test1.b from test1);
delete from test1;
commit;
perform pg_advisory_lock(1);
raise notice 'length(r) = %', length(r::text);
end;
$$;
<waiting ...>
step vacuum:
VACUUM test1;
step unlock:
SELECT pg_advisory_unlock(1);
pg_advisory_unlock
t
s1: NOTICE: length(r) = 6004
step assign3: <... completed>
starting permutation: lock assign4 vacuum unlock
pg_advisory_unlock_all
pg_advisory_unlock_all
step lock:
SELECT pg_advisory_lock(1);
pg_advisory_lock
step assign4:
do $$
declare
r test2;
begin
select * into r from test1;
delete from test1;
commit;
perform pg_advisory_lock(1);
raise notice 'length(r) = %', length(r::text);
end;
$$;
<waiting ...>
step vacuum:
VACUUM test1;
step unlock:
SELECT pg_advisory_unlock(1);
pg_advisory_unlock
t
s1: NOTICE: length(r) = 6004
step assign4: <... completed>
starting permutation: lock assign5 vacuum unlock
pg_advisory_unlock_all
pg_advisory_unlock_all
step lock:
SELECT pg_advisory_lock(1);
pg_advisory_lock
step assign5:
do $$
declare
r record;
begin
for r in select test1.b from test1 loop
null;
end loop;
delete from test1;
commit;
perform pg_advisory_lock(1);
raise notice 'length(r) = %', length(r::text);
end;
$$;
<waiting ...>
step vacuum:
VACUUM test1;
step unlock:
SELECT pg_advisory_unlock(1);
pg_advisory_unlock
t
s1: NOTICE: length(r) = 6002
step assign5: <... completed>
|
