blob: 3be45556de4e8258de52ac1eb4395736f84396ec (
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
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
--
-- XC_SEQUENCE
--
-- Check of callback mechanisms on GTM
-- Sequence DROP and CREATE
-- Rollback a creation
BEGIN;
CREATE SEQUENCE xc_sequence_1;
SELECT nextval('xc_sequence_1'); -- ok
ROLLBACK;
SELECT nextval('xc_sequence_1'); -- fail
-- Commit a creation
BEGIN;
CREATE SEQUENCE xc_sequence_1;
SELECT nextval('xc_sequence_1'); -- ok
COMMIT;
SELECT nextval('xc_sequence_1'); -- ok
-- Rollback a drop
BEGIN;
DROP SEQUENCE xc_sequence_1;
SELECT nextval('xc_sequence_1'); -- fail
ROLLBACK;
SELECT nextval('xc_sequence_1'); -- ok, previous transaction failed
-- Commit a drop
BEGIN;
DROP SEQUENCE xc_sequence_1;
COMMIT;
SELECT nextval('xc_sequence_1'); -- fail
-- SEQUENCE RENAME TO
-- Rollback a renaming
CREATE SEQUENCE xc_sequence_1;
SELECT nextval('xc_sequence_1'); -- ok
BEGIN;
ALTER SEQUENCE xc_sequence_1 RENAME TO xc_sequence_2;
SELECT nextval('xc_sequence_2'); -- ok
ROLLBACK;
SELECT nextval('xc_sequence_1'); -- ok
-- Commit a renaming
BEGIN;
ALTER SEQUENCE xc_sequence_1 RENAME TO xc_sequence_2;
SELECT nextval('xc_sequence_2'); -- ok
COMMIT;
SELECT nextval('xc_sequence_2'); -- ok
DROP SEQUENCE xc_sequence_2;
-- Columns with SERIAL
-- Serial sequence is named xc_sequence_tab1_col2_seq
CREATE TABLE xc_sequence_tab1 (col1 int, col2 serial) DISTRIBUTE BY ROUNDROBIN;
-- Some data
INSERT INTO xc_sequence_tab1 VALUES (1, DEFAULT);
INSERT INTO xc_sequence_tab1 VALUES (2, DEFAULT);
SELECT col1, col2 FROM xc_sequence_tab1 ORDER BY 1;
-- Rollback a SERIAL column drop
BEGIN;
ALTER TABLE xc_sequence_tab1 DROP COLUMN col2;
INSERT INTO xc_sequence_tab1 VALUES (3);
SELECT col1 FROM xc_sequence_tab1 ORDER BY 1;
ROLLBACK;
SELECT nextval('xc_sequence_tab1_col2_seq'); -- ok
-- Commit a SERIAL column drop
BEGIN;
ALTER TABLE xc_sequence_tab1 DROP COLUMN col2;
INSERT INTO xc_sequence_tab1 VALUES (3);
SELECT col1 FROM xc_sequence_tab1 ORDER BY 1;
COMMIT;
DROP TABLE xc_sequence_tab1;
-- Need to recreate here, serial column is no more
CREATE TABLE xc_sequence_tab1 (col1 int, col2 serial) DISTRIBUTE BY ROUNDROBIN;
INSERT INTO xc_sequence_tab1 VALUES (1234, DEFAULT);
SELECT col1, col2 FROM xc_sequence_tab1 ORDER BY 1;
-- Rollback of a table with SERIAL
BEGIN;
DROP TABLE xc_sequence_tab1;
ROLLBACK;
SELECT nextval('xc_sequence_tab1_col2_seq'); -- ok
-- Commit of a table with SERIAL
BEGIN;
DROP TABLE xc_sequence_tab1;
COMMIT;
-- Recreate a sequence with the same name as previous SERIAL one
CREATE SEQUENCE xc_sequence_tab1_col2_seq START 2344;
SELECT nextval('xc_sequence_tab1_col2_seq'); -- ok
DROP SEQUENCE xc_sequence_tab1_col2_seq;
-- As simple test that sequences are dropped properly
CREATE SEQUENCE xl_s1;
SELECT nextval('xl_s1');
DROP SEQUENCE xl_s1;
-- Check if rollback reverses sequence drop properly
CREATE SEQUENCE xl_s1;
BEGIN;
DROP SEQUENCE xl_s1;
ROLLBACK;
DROP SEQUENCE xl_s1;
-- Check if commit makes sequence drop permanent
CREATE SEQUENCE xl_s1;
BEGIN;
DROP SEQUENCE xl_s1;
COMMIT;
DROP SEQUENCE xl_s1; -- error
-- Drop a sequence and recreate another sequence with the same name in the same
-- transaction. Check that transaction abort does not cause any surprising
-- behaviour
CREATE SEQUENCE xl_s1;
SELECT nextval('xl_s1');
SELECT nextval('xl_s1');
BEGIN;
DROP SEQUENCE xl_s1;
CREATE SEQUENCE xl_s1; -- create again with the same name
SELECT nextval('xl_s1');-- new value
ROLLBACK;
SELECT nextval('xl_s1');-- sequence value changes are not transactional
DROP SEQUENCE xl_s1;
-- Check sequence renaming works ok
CREATE SEQUENCE xl_s1;
SELECT nextval('xl_s1');
SELECT nextval('xl_s1');
ALTER SEQUENCE xl_s1 RENAME TO xl_s1_newname;
SELECT nextval('xl_s1'); -- error
SELECT nextval('xl_s1_newname'); -- continue with the previous value-space
DROP SEQUENCE xl_s1; -- error
DROP SEQUENCE xl_s1_newname; -- should be ok
-- A combination of ALTER and RENAME should work ok when transaction aborts
CREATE SEQUENCE xl_s1;
SELECT nextval('xl_s1');
SELECT nextval('xl_s1');
BEGIN;
ALTER SEQUENCE xl_s1 RESTART;
SELECT nextval('xl_s1'); -- restart value
DROP SEQUENCE xl_s1;
ROLLBACK;
SELECT nextval('xl_s1');
DROP SEQUENCE xl_s1;
-- A combination of ALTER and RENAME should work ok when transacion commits
CREATE SEQUENCE xl_s1;
SELECT nextval('xl_s1');
SELECT nextval('xl_s1');
BEGIN;
ALTER SEQUENCE xl_s1 RESTART;
SELECT nextval('xl_s1'); -- restart value
ALTER SEQUENCE xl_s1 RENAME TO xl_s1_newname;
SELECT nextval('xl_s1_newname');
ALTER SEQUENCE xl_s1_newname RENAME TO xl_s1;
ALTER SEQUENCE xl_s1 RESTART;
COMMIT;
SELECT nextval('xl_s1');
DROP SEQUENCE xl_s1;
-- Multiple RENAMEs in the same transaction
CREATE SEQUENCE xl_s1;
SELECT nextval('xl_s1');
SELECT nextval('xl_s1');
BEGIN;
ALTER SEQUENCE xl_s1 RESTART;
SELECT nextval('xl_s1'); -- restart value
ALTER SEQUENCE xl_s1 RENAME TO xl_s1_newname;
SELECT nextval('xl_s1_newname');
ALTER SEQUENCE xl_s1_newname RENAME TO xl_s1;
ALTER SEQUENCE xl_s1 RESTART;
DROP SEQUENCE xl_s1;
COMMIT;
SELECT nextval('xl_s1');
DROP SEQUENCE xl_s1;
-- Multiple RENAMEs in the same transaction and the transaction aborts
CREATE SEQUENCE xl_s1;
SELECT nextval('xl_s1');
SELECT nextval('xl_s1');
BEGIN;
ALTER SEQUENCE xl_s1 RESTART;
SELECT nextval('xl_s1'); -- restart value
ALTER SEQUENCE xl_s1 RENAME TO xl_s1_newname;
SELECT nextval('xl_s1_newname');
ALTER SEQUENCE xl_s1_newname RENAME TO xl_s1;
ALTER SEQUENCE xl_s1 RESTART;
DROP SEQUENCE xl_s1;
ROLLBACK;
SELECT nextval('xl_s1');
DROP SEQUENCE xl_s1;
-- Rename back to original value, but abort the transaction
CREATE SEQUENCE xl_s1;
SELECT nextval('xl_s1');
BEGIN;
ALTER SEQUENCE xl_s1 RENAME TO xl_s1_newname;
ALTER SEQUENCE xl_s1_newname RENAME TO xl_s1;
SELECT nextval('xl_s1');
ROLLBACK;
SELECT nextval('xl_s1');
DROP SEQUENCE xl_s1;
-- Rename back to original value
CREATE SEQUENCE xl_s1;
SELECT nextval('xl_s1');
BEGIN;
ALTER SEQUENCE xl_s1 RENAME TO xl_s1_newname;
ALTER SEQUENCE xl_s1_newname RENAME TO xl_s1;
SELECT nextval('xl_s1');
COMMIT;
SELECT nextval('xl_s1');
CREATE TABLE xl_testtab (a serial, b int);
ALTER TABLE xl_testtab RENAME TO xl_testtab_newname;
\d+ xl_testtab_newname
|