3
-- Virtual class definitions
4
-- (this also tests the query rewrite system)
7
SELECT r.name, r.thepath, c.cname AS cname
8
FROM ONLY road r, real_city c
9
WHERE c.outline ## r.thepath;
11
SELECT ih.name, ih.thepath,
12
interpt_pp(ih.thepath, r.thepath) AS exit
13
FROM ihighway ih, ramp r
14
WHERE ih.thepath ## r.thepath;
16
SELECT name, age, location, 12*salary AS annualsal
19
COMMENT ON VIEW noview IS 'no view';
20
ERROR: relation "noview" does not exist
21
COMMENT ON VIEW toyemp IS 'is a view';
22
COMMENT ON VIEW toyemp IS NULL;
24
-- CREATE OR REPLACE VIEW
26
CREATE TABLE viewtest_tbl (a int, b int);
27
COPY viewtest_tbl FROM stdin;
28
CREATE OR REPLACE VIEW viewtest AS
29
SELECT * FROM viewtest_tbl;
30
CREATE OR REPLACE VIEW viewtest AS
31
SELECT * FROM viewtest_tbl WHERE a > 10;
32
SELECT * FROM viewtest;
39
CREATE OR REPLACE VIEW viewtest AS
40
SELECT a, b FROM viewtest_tbl WHERE a > 5 ORDER BY b DESC;
41
SELECT * FROM viewtest;
50
CREATE OR REPLACE VIEW viewtest AS
51
SELECT a FROM viewtest_tbl WHERE a <> 20;
52
ERROR: cannot drop columns from view
54
CREATE OR REPLACE VIEW viewtest AS
55
SELECT 1, * FROM viewtest_tbl;
56
ERROR: cannot change name of view column "a" to "?column?"
58
CREATE OR REPLACE VIEW viewtest AS
59
SELECT a, b::numeric FROM viewtest_tbl;
60
ERROR: cannot change data type of view column "b" from integer to numeric
62
CREATE OR REPLACE VIEW viewtest AS
63
SELECT a, b, 0 AS c FROM viewtest_tbl;
65
DROP TABLE viewtest_tbl;
66
-- tests for temporary views
67
CREATE SCHEMA temp_view_test
68
CREATE TABLE base_table (a int, id int)
69
CREATE TABLE base_table2 (a int, id int);
70
SET search_path TO temp_view_test, public;
71
CREATE TEMPORARY TABLE temp_table (a int, id int);
72
-- should be created in temp_view_test schema
73
CREATE VIEW v1 AS SELECT * FROM base_table;
74
-- should be created in temp object schema
75
CREATE VIEW v1_temp AS SELECT * FROM temp_table;
76
NOTICE: view "v1_temp" will be a temporary view
77
-- should be created in temp object schema
78
CREATE TEMP VIEW v2_temp AS SELECT * FROM base_table;
79
-- should be created in temp_views schema
80
CREATE VIEW temp_view_test.v2 AS SELECT * FROM base_table;
82
CREATE VIEW temp_view_test.v3_temp AS SELECT * FROM temp_table;
83
NOTICE: view "v3_temp" will be a temporary view
84
ERROR: temporary tables cannot specify a schema name
86
CREATE SCHEMA test_schema
87
CREATE TEMP VIEW testview AS SELECT 1;
88
ERROR: temporary tables cannot specify a schema name
89
-- joins: if any of the join relations are temporary, the view
90
-- should also be temporary
93
SELECT t1.a AS t1_a, t2.a AS t2_a
94
FROM base_table t1, base_table2 t2
96
-- should be temp (one join rel is temp)
97
CREATE VIEW v4_temp AS
98
SELECT t1.a AS t1_a, t2.a AS t2_a
99
FROM base_table t1, temp_table t2
101
NOTICE: view "v4_temp" will be a temporary view
103
CREATE VIEW v5_temp AS
104
SELECT t1.a AS t1_a, t2.a AS t2_a, t3.a AS t3_a
105
FROM base_table t1, base_table2 t2, temp_table t3
106
WHERE t1.id = t2.id and t2.id = t3.id;
107
NOTICE: view "v5_temp" will be a temporary view
109
CREATE VIEW v4 AS SELECT * FROM base_table WHERE id IN (SELECT id FROM base_table2);
110
CREATE VIEW v5 AS SELECT t1.id, t2.a FROM base_table t1, (SELECT * FROM base_table2) t2;
111
CREATE VIEW v6 AS SELECT * FROM base_table WHERE EXISTS (SELECT 1 FROM base_table2);
112
CREATE VIEW v7 AS SELECT * FROM base_table WHERE NOT EXISTS (SELECT 1 FROM base_table2);
113
CREATE VIEW v8 AS SELECT * FROM base_table WHERE EXISTS (SELECT 1);
114
CREATE VIEW v6_temp AS SELECT * FROM base_table WHERE id IN (SELECT id FROM temp_table);
115
NOTICE: view "v6_temp" will be a temporary view
116
CREATE VIEW v7_temp AS SELECT t1.id, t2.a FROM base_table t1, (SELECT * FROM temp_table) t2;
117
NOTICE: view "v7_temp" will be a temporary view
118
CREATE VIEW v8_temp AS SELECT * FROM base_table WHERE EXISTS (SELECT 1 FROM temp_table);
119
NOTICE: view "v8_temp" will be a temporary view
120
CREATE VIEW v9_temp AS SELECT * FROM base_table WHERE NOT EXISTS (SELECT 1 FROM temp_table);
121
NOTICE: view "v9_temp" will be a temporary view
122
-- a view should also be temporary if it references a temporary view
123
CREATE VIEW v10_temp AS SELECT * FROM v7_temp;
124
NOTICE: view "v10_temp" will be a temporary view
125
CREATE VIEW v11_temp AS SELECT t1.id, t2.a FROM base_table t1, v10_temp t2;
126
NOTICE: view "v11_temp" will be a temporary view
127
CREATE VIEW v12_temp AS SELECT true FROM v11_temp;
128
NOTICE: view "v12_temp" will be a temporary view
129
-- a view should also be temporary if it references a temporary sequence
130
CREATE SEQUENCE seq1;
131
CREATE TEMPORARY SEQUENCE seq1_temp;
132
CREATE VIEW v9 AS SELECT seq1.is_called FROM seq1;
133
CREATE VIEW v13_temp AS SELECT seq1_temp.is_called FROM seq1_temp;
134
NOTICE: view "v13_temp" will be a temporary view
135
SELECT relname FROM pg_class
136
WHERE relname LIKE 'v_'
137
AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = 'temp_view_test')
152
SELECT relname FROM pg_class
153
WHERE relname LIKE 'v%'
154
AND relnamespace IN (SELECT oid FROM pg_namespace WHERE nspname LIKE 'pg_temp%')
172
CREATE SCHEMA testviewschm2;
173
SET search_path TO testviewschm2, public;
174
CREATE TABLE t1 (num int, name text);
175
CREATE TABLE t2 (num2 int, value text);
176
CREATE TEMP TABLE tt (num2 int, value text);
177
CREATE VIEW nontemp1 AS SELECT * FROM t1 CROSS JOIN t2;
178
CREATE VIEW temporal1 AS SELECT * FROM t1 CROSS JOIN tt;
179
NOTICE: view "temporal1" will be a temporary view
180
CREATE VIEW nontemp2 AS SELECT * FROM t1 INNER JOIN t2 ON t1.num = t2.num2;
181
CREATE VIEW temporal2 AS SELECT * FROM t1 INNER JOIN tt ON t1.num = tt.num2;
182
NOTICE: view "temporal2" will be a temporary view
183
CREATE VIEW nontemp3 AS SELECT * FROM t1 LEFT JOIN t2 ON t1.num = t2.num2;
184
CREATE VIEW temporal3 AS SELECT * FROM t1 LEFT JOIN tt ON t1.num = tt.num2;
185
NOTICE: view "temporal3" will be a temporary view
186
CREATE VIEW nontemp4 AS SELECT * FROM t1 LEFT JOIN t2 ON t1.num = t2.num2 AND t2.value = 'xxx';
187
CREATE VIEW temporal4 AS SELECT * FROM t1 LEFT JOIN tt ON t1.num = tt.num2 AND tt.value = 'xxx';
188
NOTICE: view "temporal4" will be a temporary view
189
SELECT relname FROM pg_class
190
WHERE relname LIKE 'nontemp%'
191
AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = 'testviewschm2')
201
SELECT relname FROM pg_class
202
WHERE relname LIKE 'temporal%'
203
AND relnamespace IN (SELECT oid FROM pg_namespace WHERE nspname LIKE 'pg_temp%')
213
CREATE TABLE tbl1 ( a int, b int);
214
CREATE TABLE tbl2 (c int, d int);
215
CREATE TABLE tbl3 (e int, f int);
216
CREATE TABLE tbl4 (g int, h int);
217
CREATE TEMP TABLE tmptbl (i int, j int);
218
--Should be in testviewschm2
219
CREATE VIEW pubview AS SELECT * FROM tbl1 WHERE tbl1.a
220
BETWEEN (SELECT d FROM tbl2 WHERE c = 1) AND (SELECT e FROM tbl3 WHERE f = 2)
221
AND EXISTS (SELECT g FROM tbl4 LEFT JOIN tbl3 ON tbl4.h = tbl3.f);
222
SELECT count(*) FROM pg_class where relname = 'pubview'
223
AND relnamespace IN (SELECT OID FROM pg_namespace WHERE nspname = 'testviewschm2');
229
--Should be in temp object schema
230
CREATE VIEW mytempview AS SELECT * FROM tbl1 WHERE tbl1.a
231
BETWEEN (SELECT d FROM tbl2 WHERE c = 1) AND (SELECT e FROM tbl3 WHERE f = 2)
232
AND EXISTS (SELECT g FROM tbl4 LEFT JOIN tbl3 ON tbl4.h = tbl3.f)
233
AND NOT EXISTS (SELECT g FROM tbl4 LEFT JOIN tmptbl ON tbl4.h = tmptbl.j);
234
NOTICE: view "mytempview" will be a temporary view
235
SELECT count(*) FROM pg_class where relname LIKE 'mytempview'
236
And relnamespace IN (SELECT OID FROM pg_namespace WHERE nspname LIKE 'pg_temp%');
242
DROP SCHEMA temp_view_test CASCADE;
243
NOTICE: drop cascades to 22 other objects
244
DETAIL: drop cascades to table temp_view_test.base_table
245
drop cascades to view v7_temp
246
drop cascades to view v10_temp
247
drop cascades to view v11_temp
248
drop cascades to view v12_temp
249
drop cascades to view v2_temp
250
drop cascades to view v4_temp
251
drop cascades to view v6_temp
252
drop cascades to view v8_temp
253
drop cascades to view v9_temp
254
drop cascades to table temp_view_test.base_table2
255
drop cascades to view v5_temp
256
drop cascades to view temp_view_test.v1
257
drop cascades to view temp_view_test.v2
258
drop cascades to view temp_view_test.v3
259
drop cascades to view temp_view_test.v4
260
drop cascades to view temp_view_test.v5
261
drop cascades to view temp_view_test.v6
262
drop cascades to view temp_view_test.v7
263
drop cascades to view temp_view_test.v8
264
drop cascades to sequence temp_view_test.seq1
265
drop cascades to view temp_view_test.v9
266
DROP SCHEMA testviewschm2 CASCADE;
267
NOTICE: drop cascades to 16 other objects
268
DETAIL: drop cascades to table t1
269
drop cascades to view temporal1
270
drop cascades to view temporal2
271
drop cascades to view temporal3
272
drop cascades to view temporal4
273
drop cascades to table t2
274
drop cascades to view nontemp1
275
drop cascades to view nontemp2
276
drop cascades to view nontemp3
277
drop cascades to view nontemp4
278
drop cascades to table tbl1
279
drop cascades to table tbl2
280
drop cascades to table tbl3
281
drop cascades to table tbl4
282
drop cascades to view mytempview
283
drop cascades to view pubview
284
SET search_path to public;