mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-09-08 06:49:21 +02:00
Normally ruleutils prints a whole-row Var as "foo.*". We already knew that that doesn't work at top level of a SELECT list, because the parser would treat the "*" as a directive to expand the reference into separate columns, not a whole-row Var. However, Joshua Yanovski points out in bug #13776 that the same thing happens at top level of a ROW() construct; and some nosing around in the parser shows that the same is true in VALUES(). Hence, apply the same workaround already devised for the SELECT-list case, namely to add a forced cast to the appropriate rowtype in these cases. (The alternative of just printing "foo" was rejected because it is difficult to avoid ambiguity against plain columns named "foo".) Back-patch to all supported branches.
1482 lines
51 KiB
Plaintext
1482 lines
51 KiB
Plaintext
--
|
|
-- CREATE_VIEW
|
|
-- Virtual class definitions
|
|
-- (this also tests the query rewrite system)
|
|
--
|
|
CREATE VIEW street AS
|
|
SELECT r.name, r.thepath, c.cname AS cname
|
|
FROM ONLY road r, real_city c
|
|
WHERE c.outline ## r.thepath;
|
|
CREATE VIEW iexit AS
|
|
SELECT ih.name, ih.thepath,
|
|
interpt_pp(ih.thepath, r.thepath) AS exit
|
|
FROM ihighway ih, ramp r
|
|
WHERE ih.thepath ## r.thepath;
|
|
CREATE VIEW toyemp AS
|
|
SELECT name, age, location, 12*salary AS annualsal
|
|
FROM emp;
|
|
-- Test comments
|
|
COMMENT ON VIEW noview IS 'no view';
|
|
ERROR: relation "noview" does not exist
|
|
COMMENT ON VIEW toyemp IS 'is a view';
|
|
COMMENT ON VIEW toyemp IS NULL;
|
|
--
|
|
-- CREATE OR REPLACE VIEW
|
|
--
|
|
CREATE TABLE viewtest_tbl (a int, b int);
|
|
COPY viewtest_tbl FROM stdin;
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT * FROM viewtest_tbl;
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT * FROM viewtest_tbl WHERE a > 10;
|
|
SELECT * FROM viewtest;
|
|
a | b
|
|
----+----
|
|
15 | 20
|
|
20 | 25
|
|
(2 rows)
|
|
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT a, b FROM viewtest_tbl WHERE a > 5 ORDER BY b DESC;
|
|
SELECT * FROM viewtest;
|
|
a | b
|
|
----+----
|
|
20 | 25
|
|
15 | 20
|
|
10 | 15
|
|
(3 rows)
|
|
|
|
-- should fail
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT a FROM viewtest_tbl WHERE a <> 20;
|
|
ERROR: cannot drop columns from view
|
|
-- should fail
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT 1, * FROM viewtest_tbl;
|
|
ERROR: cannot change name of view column "a" to "?column?"
|
|
-- should fail
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT a, b::numeric FROM viewtest_tbl;
|
|
ERROR: cannot change data type of view column "b" from integer to numeric
|
|
-- should work
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT a, b, 0 AS c FROM viewtest_tbl;
|
|
DROP VIEW viewtest;
|
|
DROP TABLE viewtest_tbl;
|
|
-- tests for temporary views
|
|
CREATE SCHEMA temp_view_test
|
|
CREATE TABLE base_table (a int, id int)
|
|
CREATE TABLE base_table2 (a int, id int);
|
|
SET search_path TO temp_view_test, public;
|
|
CREATE TEMPORARY TABLE temp_table (a int, id int);
|
|
-- should be created in temp_view_test schema
|
|
CREATE VIEW v1 AS SELECT * FROM base_table;
|
|
-- should be created in temp object schema
|
|
CREATE VIEW v1_temp AS SELECT * FROM temp_table;
|
|
NOTICE: view "v1_temp" will be a temporary view
|
|
-- should be created in temp object schema
|
|
CREATE TEMP VIEW v2_temp AS SELECT * FROM base_table;
|
|
-- should be created in temp_views schema
|
|
CREATE VIEW temp_view_test.v2 AS SELECT * FROM base_table;
|
|
-- should fail
|
|
CREATE VIEW temp_view_test.v3_temp AS SELECT * FROM temp_table;
|
|
NOTICE: view "v3_temp" will be a temporary view
|
|
ERROR: cannot create temporary relation in non-temporary schema
|
|
-- should fail
|
|
CREATE SCHEMA test_schema
|
|
CREATE TEMP VIEW testview AS SELECT 1;
|
|
ERROR: cannot create temporary relation in non-temporary schema
|
|
-- joins: if any of the join relations are temporary, the view
|
|
-- should also be temporary
|
|
-- should be non-temp
|
|
CREATE VIEW v3 AS
|
|
SELECT t1.a AS t1_a, t2.a AS t2_a
|
|
FROM base_table t1, base_table2 t2
|
|
WHERE t1.id = t2.id;
|
|
-- should be temp (one join rel is temp)
|
|
CREATE VIEW v4_temp AS
|
|
SELECT t1.a AS t1_a, t2.a AS t2_a
|
|
FROM base_table t1, temp_table t2
|
|
WHERE t1.id = t2.id;
|
|
NOTICE: view "v4_temp" will be a temporary view
|
|
-- should be temp
|
|
CREATE VIEW v5_temp AS
|
|
SELECT t1.a AS t1_a, t2.a AS t2_a, t3.a AS t3_a
|
|
FROM base_table t1, base_table2 t2, temp_table t3
|
|
WHERE t1.id = t2.id and t2.id = t3.id;
|
|
NOTICE: view "v5_temp" will be a temporary view
|
|
-- subqueries
|
|
CREATE VIEW v4 AS SELECT * FROM base_table WHERE id IN (SELECT id FROM base_table2);
|
|
CREATE VIEW v5 AS SELECT t1.id, t2.a FROM base_table t1, (SELECT * FROM base_table2) t2;
|
|
CREATE VIEW v6 AS SELECT * FROM base_table WHERE EXISTS (SELECT 1 FROM base_table2);
|
|
CREATE VIEW v7 AS SELECT * FROM base_table WHERE NOT EXISTS (SELECT 1 FROM base_table2);
|
|
CREATE VIEW v8 AS SELECT * FROM base_table WHERE EXISTS (SELECT 1);
|
|
CREATE VIEW v6_temp AS SELECT * FROM base_table WHERE id IN (SELECT id FROM temp_table);
|
|
NOTICE: view "v6_temp" will be a temporary view
|
|
CREATE VIEW v7_temp AS SELECT t1.id, t2.a FROM base_table t1, (SELECT * FROM temp_table) t2;
|
|
NOTICE: view "v7_temp" will be a temporary view
|
|
CREATE VIEW v8_temp AS SELECT * FROM base_table WHERE EXISTS (SELECT 1 FROM temp_table);
|
|
NOTICE: view "v8_temp" will be a temporary view
|
|
CREATE VIEW v9_temp AS SELECT * FROM base_table WHERE NOT EXISTS (SELECT 1 FROM temp_table);
|
|
NOTICE: view "v9_temp" will be a temporary view
|
|
-- a view should also be temporary if it references a temporary view
|
|
CREATE VIEW v10_temp AS SELECT * FROM v7_temp;
|
|
NOTICE: view "v10_temp" will be a temporary view
|
|
CREATE VIEW v11_temp AS SELECT t1.id, t2.a FROM base_table t1, v10_temp t2;
|
|
NOTICE: view "v11_temp" will be a temporary view
|
|
CREATE VIEW v12_temp AS SELECT true FROM v11_temp;
|
|
NOTICE: view "v12_temp" will be a temporary view
|
|
-- a view should also be temporary if it references a temporary sequence
|
|
CREATE SEQUENCE seq1;
|
|
CREATE TEMPORARY SEQUENCE seq1_temp;
|
|
CREATE VIEW v9 AS SELECT seq1.is_called FROM seq1;
|
|
CREATE VIEW v13_temp AS SELECT seq1_temp.is_called FROM seq1_temp;
|
|
NOTICE: view "v13_temp" will be a temporary view
|
|
SELECT relname FROM pg_class
|
|
WHERE relname LIKE 'v_'
|
|
AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = 'temp_view_test')
|
|
ORDER BY relname;
|
|
relname
|
|
---------
|
|
v1
|
|
v2
|
|
v3
|
|
v4
|
|
v5
|
|
v6
|
|
v7
|
|
v8
|
|
v9
|
|
(9 rows)
|
|
|
|
SELECT relname FROM pg_class
|
|
WHERE relname LIKE 'v%'
|
|
AND relnamespace IN (SELECT oid FROM pg_namespace WHERE nspname LIKE 'pg_temp%')
|
|
ORDER BY relname;
|
|
relname
|
|
----------
|
|
v10_temp
|
|
v11_temp
|
|
v12_temp
|
|
v13_temp
|
|
v1_temp
|
|
v2_temp
|
|
v4_temp
|
|
v5_temp
|
|
v6_temp
|
|
v7_temp
|
|
v8_temp
|
|
v9_temp
|
|
(12 rows)
|
|
|
|
CREATE SCHEMA testviewschm2;
|
|
SET search_path TO testviewschm2, public;
|
|
CREATE TABLE t1 (num int, name text);
|
|
CREATE TABLE t2 (num2 int, value text);
|
|
CREATE TEMP TABLE tt (num2 int, value text);
|
|
CREATE VIEW nontemp1 AS SELECT * FROM t1 CROSS JOIN t2;
|
|
CREATE VIEW temporal1 AS SELECT * FROM t1 CROSS JOIN tt;
|
|
NOTICE: view "temporal1" will be a temporary view
|
|
CREATE VIEW nontemp2 AS SELECT * FROM t1 INNER JOIN t2 ON t1.num = t2.num2;
|
|
CREATE VIEW temporal2 AS SELECT * FROM t1 INNER JOIN tt ON t1.num = tt.num2;
|
|
NOTICE: view "temporal2" will be a temporary view
|
|
CREATE VIEW nontemp3 AS SELECT * FROM t1 LEFT JOIN t2 ON t1.num = t2.num2;
|
|
CREATE VIEW temporal3 AS SELECT * FROM t1 LEFT JOIN tt ON t1.num = tt.num2;
|
|
NOTICE: view "temporal3" will be a temporary view
|
|
CREATE VIEW nontemp4 AS SELECT * FROM t1 LEFT JOIN t2 ON t1.num = t2.num2 AND t2.value = 'xxx';
|
|
CREATE VIEW temporal4 AS SELECT * FROM t1 LEFT JOIN tt ON t1.num = tt.num2 AND tt.value = 'xxx';
|
|
NOTICE: view "temporal4" will be a temporary view
|
|
SELECT relname FROM pg_class
|
|
WHERE relname LIKE 'nontemp%'
|
|
AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = 'testviewschm2')
|
|
ORDER BY relname;
|
|
relname
|
|
----------
|
|
nontemp1
|
|
nontemp2
|
|
nontemp3
|
|
nontemp4
|
|
(4 rows)
|
|
|
|
SELECT relname FROM pg_class
|
|
WHERE relname LIKE 'temporal%'
|
|
AND relnamespace IN (SELECT oid FROM pg_namespace WHERE nspname LIKE 'pg_temp%')
|
|
ORDER BY relname;
|
|
relname
|
|
-----------
|
|
temporal1
|
|
temporal2
|
|
temporal3
|
|
temporal4
|
|
(4 rows)
|
|
|
|
CREATE TABLE tbl1 ( a int, b int);
|
|
CREATE TABLE tbl2 (c int, d int);
|
|
CREATE TABLE tbl3 (e int, f int);
|
|
CREATE TABLE tbl4 (g int, h int);
|
|
CREATE TEMP TABLE tmptbl (i int, j int);
|
|
--Should be in testviewschm2
|
|
CREATE VIEW pubview AS SELECT * FROM tbl1 WHERE tbl1.a
|
|
BETWEEN (SELECT d FROM tbl2 WHERE c = 1) AND (SELECT e FROM tbl3 WHERE f = 2)
|
|
AND EXISTS (SELECT g FROM tbl4 LEFT JOIN tbl3 ON tbl4.h = tbl3.f);
|
|
SELECT count(*) FROM pg_class where relname = 'pubview'
|
|
AND relnamespace IN (SELECT OID FROM pg_namespace WHERE nspname = 'testviewschm2');
|
|
count
|
|
-------
|
|
1
|
|
(1 row)
|
|
|
|
--Should be in temp object schema
|
|
CREATE VIEW mytempview AS SELECT * FROM tbl1 WHERE tbl1.a
|
|
BETWEEN (SELECT d FROM tbl2 WHERE c = 1) AND (SELECT e FROM tbl3 WHERE f = 2)
|
|
AND EXISTS (SELECT g FROM tbl4 LEFT JOIN tbl3 ON tbl4.h = tbl3.f)
|
|
AND NOT EXISTS (SELECT g FROM tbl4 LEFT JOIN tmptbl ON tbl4.h = tmptbl.j);
|
|
NOTICE: view "mytempview" will be a temporary view
|
|
SELECT count(*) FROM pg_class where relname LIKE 'mytempview'
|
|
And relnamespace IN (SELECT OID FROM pg_namespace WHERE nspname LIKE 'pg_temp%');
|
|
count
|
|
-------
|
|
1
|
|
(1 row)
|
|
|
|
--
|
|
-- CREATE VIEW and WITH(...) clause
|
|
--
|
|
CREATE VIEW mysecview1
|
|
AS SELECT * FROM tbl1 WHERE a = 0;
|
|
CREATE VIEW mysecview2 WITH (security_barrier=true)
|
|
AS SELECT * FROM tbl1 WHERE a > 0;
|
|
CREATE VIEW mysecview3 WITH (security_barrier=false)
|
|
AS SELECT * FROM tbl1 WHERE a < 0;
|
|
CREATE VIEW mysecview4 WITH (security_barrier)
|
|
AS SELECT * FROM tbl1 WHERE a <> 0;
|
|
CREATE VIEW mysecview5 WITH (security_barrier=100) -- Error
|
|
AS SELECT * FROM tbl1 WHERE a > 100;
|
|
ERROR: invalid value for boolean option "security_barrier": 100
|
|
CREATE VIEW mysecview6 WITH (invalid_option) -- Error
|
|
AS SELECT * FROM tbl1 WHERE a < 100;
|
|
ERROR: unrecognized parameter "invalid_option"
|
|
SELECT relname, relkind, reloptions FROM pg_class
|
|
WHERE oid in ('mysecview1'::regclass, 'mysecview2'::regclass,
|
|
'mysecview3'::regclass, 'mysecview4'::regclass)
|
|
ORDER BY relname;
|
|
relname | relkind | reloptions
|
|
------------+---------+--------------------------
|
|
mysecview1 | v |
|
|
mysecview2 | v | {security_barrier=true}
|
|
mysecview3 | v | {security_barrier=false}
|
|
mysecview4 | v | {security_barrier=true}
|
|
(4 rows)
|
|
|
|
CREATE OR REPLACE VIEW mysecview1
|
|
AS SELECT * FROM tbl1 WHERE a = 256;
|
|
CREATE OR REPLACE VIEW mysecview2
|
|
AS SELECT * FROM tbl1 WHERE a > 256;
|
|
CREATE OR REPLACE VIEW mysecview3 WITH (security_barrier=true)
|
|
AS SELECT * FROM tbl1 WHERE a < 256;
|
|
CREATE OR REPLACE VIEW mysecview4 WITH (security_barrier=false)
|
|
AS SELECT * FROM tbl1 WHERE a <> 256;
|
|
SELECT relname, relkind, reloptions FROM pg_class
|
|
WHERE oid in ('mysecview1'::regclass, 'mysecview2'::regclass,
|
|
'mysecview3'::regclass, 'mysecview4'::regclass)
|
|
ORDER BY relname;
|
|
relname | relkind | reloptions
|
|
------------+---------+--------------------------
|
|
mysecview1 | v |
|
|
mysecview2 | v |
|
|
mysecview3 | v | {security_barrier=true}
|
|
mysecview4 | v | {security_barrier=false}
|
|
(4 rows)
|
|
|
|
-- Test view decompilation in the face of relation renaming conflicts
|
|
CREATE TABLE tt1 (f1 int, f2 int, f3 text);
|
|
CREATE TABLE tx1 (x1 int, x2 int, x3 text);
|
|
CREATE TABLE temp_view_test.tt1 (y1 int, f2 int, f3 text);
|
|
CREATE VIEW aliased_view_1 AS
|
|
select * from tt1
|
|
where exists (select 1 from tx1 where tt1.f1 = tx1.x1);
|
|
CREATE VIEW aliased_view_2 AS
|
|
select * from tt1 a1
|
|
where exists (select 1 from tx1 where a1.f1 = tx1.x1);
|
|
CREATE VIEW aliased_view_3 AS
|
|
select * from tt1
|
|
where exists (select 1 from tx1 a2 where tt1.f1 = a2.x1);
|
|
CREATE VIEW aliased_view_4 AS
|
|
select * from temp_view_test.tt1
|
|
where exists (select 1 from tt1 where temp_view_test.tt1.y1 = tt1.f1);
|
|
\d+ aliased_view_1
|
|
View "testviewschm2.aliased_view_1"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tt1.f1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tx1
|
|
WHERE tt1.f1 = tx1.x1));
|
|
|
|
\d+ aliased_view_2
|
|
View "testviewschm2.aliased_view_2"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT a1.f1,
|
|
a1.f2,
|
|
a1.f3
|
|
FROM tt1 a1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tx1
|
|
WHERE a1.f1 = tx1.x1));
|
|
|
|
\d+ aliased_view_3
|
|
View "testviewschm2.aliased_view_3"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tt1.f1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tx1 a2
|
|
WHERE tt1.f1 = a2.x1));
|
|
|
|
\d+ aliased_view_4
|
|
View "testviewschm2.aliased_view_4"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
y1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tt1.y1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM temp_view_test.tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1 tt1_1
|
|
WHERE tt1.y1 = tt1_1.f1));
|
|
|
|
ALTER TABLE tx1 RENAME TO a1;
|
|
\d+ aliased_view_1
|
|
View "testviewschm2.aliased_view_1"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tt1.f1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a1
|
|
WHERE tt1.f1 = a1.x1));
|
|
|
|
\d+ aliased_view_2
|
|
View "testviewschm2.aliased_view_2"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT a1.f1,
|
|
a1.f2,
|
|
a1.f3
|
|
FROM tt1 a1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a1 a1_1
|
|
WHERE a1.f1 = a1_1.x1));
|
|
|
|
\d+ aliased_view_3
|
|
View "testviewschm2.aliased_view_3"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tt1.f1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a1 a2
|
|
WHERE tt1.f1 = a2.x1));
|
|
|
|
\d+ aliased_view_4
|
|
View "testviewschm2.aliased_view_4"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
y1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tt1.y1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM temp_view_test.tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1 tt1_1
|
|
WHERE tt1.y1 = tt1_1.f1));
|
|
|
|
ALTER TABLE tt1 RENAME TO a2;
|
|
\d+ aliased_view_1
|
|
View "testviewschm2.aliased_view_1"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT a2.f1,
|
|
a2.f2,
|
|
a2.f3
|
|
FROM a2
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a1
|
|
WHERE a2.f1 = a1.x1));
|
|
|
|
\d+ aliased_view_2
|
|
View "testviewschm2.aliased_view_2"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT a1.f1,
|
|
a1.f2,
|
|
a1.f3
|
|
FROM a2 a1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a1 a1_1
|
|
WHERE a1.f1 = a1_1.x1));
|
|
|
|
\d+ aliased_view_3
|
|
View "testviewschm2.aliased_view_3"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT a2.f1,
|
|
a2.f2,
|
|
a2.f3
|
|
FROM a2
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a1 a2_1
|
|
WHERE a2.f1 = a2_1.x1));
|
|
|
|
\d+ aliased_view_4
|
|
View "testviewschm2.aliased_view_4"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
y1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tt1.y1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM temp_view_test.tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a2
|
|
WHERE tt1.y1 = a2.f1));
|
|
|
|
ALTER TABLE a1 RENAME TO tt1;
|
|
\d+ aliased_view_1
|
|
View "testviewschm2.aliased_view_1"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT a2.f1,
|
|
a2.f2,
|
|
a2.f3
|
|
FROM a2
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1
|
|
WHERE a2.f1 = tt1.x1));
|
|
|
|
\d+ aliased_view_2
|
|
View "testviewschm2.aliased_view_2"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT a1.f1,
|
|
a1.f2,
|
|
a1.f3
|
|
FROM a2 a1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1
|
|
WHERE a1.f1 = tt1.x1));
|
|
|
|
\d+ aliased_view_3
|
|
View "testviewschm2.aliased_view_3"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT a2.f1,
|
|
a2.f2,
|
|
a2.f3
|
|
FROM a2
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1 a2_1
|
|
WHERE a2.f1 = a2_1.x1));
|
|
|
|
\d+ aliased_view_4
|
|
View "testviewschm2.aliased_view_4"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
y1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tt1.y1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM temp_view_test.tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a2
|
|
WHERE tt1.y1 = a2.f1));
|
|
|
|
ALTER TABLE a2 RENAME TO tx1;
|
|
ALTER TABLE tx1 SET SCHEMA temp_view_test;
|
|
\d+ aliased_view_1
|
|
View "testviewschm2.aliased_view_1"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tx1.f1,
|
|
tx1.f2,
|
|
tx1.f3
|
|
FROM temp_view_test.tx1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1
|
|
WHERE tx1.f1 = tt1.x1));
|
|
|
|
\d+ aliased_view_2
|
|
View "testviewschm2.aliased_view_2"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT a1.f1,
|
|
a1.f2,
|
|
a1.f3
|
|
FROM temp_view_test.tx1 a1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1
|
|
WHERE a1.f1 = tt1.x1));
|
|
|
|
\d+ aliased_view_3
|
|
View "testviewschm2.aliased_view_3"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tx1.f1,
|
|
tx1.f2,
|
|
tx1.f3
|
|
FROM temp_view_test.tx1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1 a2
|
|
WHERE tx1.f1 = a2.x1));
|
|
|
|
\d+ aliased_view_4
|
|
View "testviewschm2.aliased_view_4"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
y1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tt1.y1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM temp_view_test.tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM temp_view_test.tx1
|
|
WHERE tt1.y1 = tx1.f1));
|
|
|
|
ALTER TABLE temp_view_test.tt1 RENAME TO tmp1;
|
|
ALTER TABLE temp_view_test.tmp1 SET SCHEMA testviewschm2;
|
|
ALTER TABLE tmp1 RENAME TO tx1;
|
|
\d+ aliased_view_1
|
|
View "testviewschm2.aliased_view_1"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tx1.f1,
|
|
tx1.f2,
|
|
tx1.f3
|
|
FROM temp_view_test.tx1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1
|
|
WHERE tx1.f1 = tt1.x1));
|
|
|
|
\d+ aliased_view_2
|
|
View "testviewschm2.aliased_view_2"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT a1.f1,
|
|
a1.f2,
|
|
a1.f3
|
|
FROM temp_view_test.tx1 a1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1
|
|
WHERE a1.f1 = tt1.x1));
|
|
|
|
\d+ aliased_view_3
|
|
View "testviewschm2.aliased_view_3"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
f1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tx1.f1,
|
|
tx1.f2,
|
|
tx1.f3
|
|
FROM temp_view_test.tx1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1 a2
|
|
WHERE tx1.f1 = a2.x1));
|
|
|
|
\d+ aliased_view_4
|
|
View "testviewschm2.aliased_view_4"
|
|
Column | Type | Modifiers | Storage | Description
|
|
--------+---------+-----------+----------+-------------
|
|
y1 | integer | | plain |
|
|
f2 | integer | | plain |
|
|
f3 | text | | extended |
|
|
View definition:
|
|
SELECT tx1.y1,
|
|
tx1.f2,
|
|
tx1.f3
|
|
FROM tx1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM temp_view_test.tx1 tx1_1
|
|
WHERE tx1.y1 = tx1_1.f1));
|
|
|
|
-- Test view decompilation in the face of column addition/deletion/renaming
|
|
create table tt2 (a int, b int, c int);
|
|
create table tt3 (ax int8, b int2, c numeric);
|
|
create table tt4 (ay int, b int, q int);
|
|
create view v1 as select * from tt2 natural join tt3;
|
|
create view v1a as select * from (tt2 natural join tt3) j;
|
|
create view v2 as select * from tt2 join tt3 using (b,c) join tt4 using (b);
|
|
create view v2a as select * from (tt2 join tt3 using (b,c) join tt4 using (b)) j;
|
|
create view v3 as select * from tt2 join tt3 using (b,c) full join tt4 using (b);
|
|
select pg_get_viewdef('v1', true);
|
|
pg_get_viewdef
|
|
-----------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax +
|
|
FROM tt2 +
|
|
JOIN tt3 USING (b, c);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v1a', true);
|
|
pg_get_viewdef
|
|
--------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax +
|
|
FROM (tt2 +
|
|
JOIN tt3 USING (b, c)) j;
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2', true);
|
|
pg_get_viewdef
|
|
----------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 USING (b, c)+
|
|
JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2a', true);
|
|
pg_get_viewdef
|
|
-----------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax, +
|
|
j.ay, +
|
|
j.q +
|
|
FROM (tt2 +
|
|
JOIN tt3 USING (b, c) +
|
|
JOIN tt4 USING (b)) j;
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v3', true);
|
|
pg_get_viewdef
|
|
-------------------------------
|
|
SELECT b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 USING (b, c) +
|
|
FULL JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
alter table tt2 add column d int;
|
|
alter table tt2 add column e int;
|
|
select pg_get_viewdef('v1', true);
|
|
pg_get_viewdef
|
|
-----------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax +
|
|
FROM tt2 +
|
|
JOIN tt3 USING (b, c);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v1a', true);
|
|
pg_get_viewdef
|
|
--------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax +
|
|
FROM (tt2 +
|
|
JOIN tt3 USING (b, c)) j;
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2', true);
|
|
pg_get_viewdef
|
|
----------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 USING (b, c)+
|
|
JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2a', true);
|
|
pg_get_viewdef
|
|
-----------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax, +
|
|
j.ay, +
|
|
j.q +
|
|
FROM (tt2 +
|
|
JOIN tt3 USING (b, c) +
|
|
JOIN tt4 USING (b)) j;
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v3', true);
|
|
pg_get_viewdef
|
|
-------------------------------
|
|
SELECT b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 USING (b, c) +
|
|
FULL JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
alter table tt3 rename c to d;
|
|
select pg_get_viewdef('v1', true);
|
|
pg_get_viewdef
|
|
-------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c) USING (b, c);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v1a', true);
|
|
pg_get_viewdef
|
|
----------------------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax +
|
|
FROM (tt2 +
|
|
JOIN tt3 tt3(ax, b, c) USING (b, c)) j;
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2', true);
|
|
pg_get_viewdef
|
|
------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c) USING (b, c)+
|
|
JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2a', true);
|
|
pg_get_viewdef
|
|
------------------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax, +
|
|
j.ay, +
|
|
j.q +
|
|
FROM (tt2 +
|
|
JOIN tt3 tt3(ax, b, c) USING (b, c)+
|
|
JOIN tt4 USING (b)) j;
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v3', true);
|
|
pg_get_viewdef
|
|
------------------------------------------
|
|
SELECT b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c) USING (b, c)+
|
|
FULL JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
alter table tt3 add column c int;
|
|
alter table tt3 add column e int;
|
|
select pg_get_viewdef('v1', true);
|
|
pg_get_viewdef
|
|
---------------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v1a', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------------------------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax +
|
|
FROM (tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c)) j(b, c, a, d, e, ax, c_1, e_1);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c)+
|
|
JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2a', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax, +
|
|
j.ay, +
|
|
j.q +
|
|
FROM (tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c) +
|
|
JOIN tt4 USING (b)) j(b, c, a, d, e, ax, c_1, e_1, ay, q);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v3', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------
|
|
SELECT b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c)+
|
|
FULL JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
alter table tt2 drop column d;
|
|
select pg_get_viewdef('v1', true);
|
|
pg_get_viewdef
|
|
---------------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v1a', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax +
|
|
FROM (tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c)) j(b, c, a, e, ax, c_1, e_1);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c)+
|
|
JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2a', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax, +
|
|
j.ay, +
|
|
j.q +
|
|
FROM (tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c) +
|
|
JOIN tt4 USING (b)) j(b, c, a, e, ax, c_1, e_1, ay, q);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v3', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------
|
|
SELECT b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c)+
|
|
FULL JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
create table tt5 (a int, b int);
|
|
create table tt6 (c int, d int);
|
|
create view vv1 as select * from (tt5 cross join tt6) j(aa,bb,cc,dd);
|
|
select pg_get_viewdef('vv1', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------
|
|
SELECT j.aa, +
|
|
j.bb, +
|
|
j.cc, +
|
|
j.dd +
|
|
FROM (tt5 +
|
|
CROSS JOIN tt6) j(aa, bb, cc, dd);
|
|
(1 row)
|
|
|
|
alter table tt5 add column c int;
|
|
select pg_get_viewdef('vv1', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------
|
|
SELECT j.aa, +
|
|
j.bb, +
|
|
j.cc, +
|
|
j.dd +
|
|
FROM (tt5 +
|
|
CROSS JOIN tt6) j(aa, bb, c, cc, dd);
|
|
(1 row)
|
|
|
|
alter table tt5 add column cc int;
|
|
select pg_get_viewdef('vv1', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------
|
|
SELECT j.aa, +
|
|
j.bb, +
|
|
j.cc, +
|
|
j.dd +
|
|
FROM (tt5 +
|
|
CROSS JOIN tt6) j(aa, bb, c, cc_1, cc, dd);
|
|
(1 row)
|
|
|
|
alter table tt5 drop column c;
|
|
select pg_get_viewdef('vv1', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------------
|
|
SELECT j.aa, +
|
|
j.bb, +
|
|
j.cc, +
|
|
j.dd +
|
|
FROM (tt5 +
|
|
CROSS JOIN tt6) j(aa, bb, cc_1, cc, dd);
|
|
(1 row)
|
|
|
|
-- Unnamed FULL JOIN USING is lots of fun too
|
|
create table tt7 (x int, xx int, y int);
|
|
alter table tt7 drop column xx;
|
|
create table tt8 (x int, z int);
|
|
create view vv2 as
|
|
select * from (values(1,2,3,4,5)) v(a,b,c,d,e)
|
|
union all
|
|
select * from tt7 full join tt8 using (x), tt8 tt8x;
|
|
select pg_get_viewdef('vv2', true);
|
|
pg_get_viewdef
|
|
------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.d, +
|
|
v.e +
|
|
FROM ( VALUES (1,2,3,4,5)) v(a, b, c, d, e)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7.y AS b, +
|
|
tt8.z AS c, +
|
|
tt8x.x_1 AS d, +
|
|
tt8x.z AS e +
|
|
FROM tt7 +
|
|
FULL JOIN tt8 USING (x), +
|
|
tt8 tt8x(x_1, z);
|
|
(1 row)
|
|
|
|
create view vv3 as
|
|
select * from (values(1,2,3,4,5,6)) v(a,b,c,x,e,f)
|
|
union all
|
|
select * from
|
|
tt7 full join tt8 using (x),
|
|
tt7 tt7x full join tt8 tt8x using (x);
|
|
select pg_get_viewdef('vv3', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.x, +
|
|
v.e, +
|
|
v.f +
|
|
FROM ( VALUES (1,2,3,4,5,6)) v(a, b, c, x, e, f)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7.y AS b, +
|
|
tt8.z AS c, +
|
|
x_1 AS x, +
|
|
tt7x.y AS e, +
|
|
tt8x.z AS f +
|
|
FROM tt7 +
|
|
FULL JOIN tt8 USING (x), +
|
|
tt7 tt7x(x_1, y) +
|
|
FULL JOIN tt8 tt8x(x_1, z) USING (x_1);
|
|
(1 row)
|
|
|
|
create view vv4 as
|
|
select * from (values(1,2,3,4,5,6,7)) v(a,b,c,x,e,f,g)
|
|
union all
|
|
select * from
|
|
tt7 full join tt8 using (x),
|
|
tt7 tt7x full join tt8 tt8x using (x) full join tt8 tt8y using (x);
|
|
select pg_get_viewdef('vv4', true);
|
|
pg_get_viewdef
|
|
----------------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.x, +
|
|
v.e, +
|
|
v.f, +
|
|
v.g +
|
|
FROM ( VALUES (1,2,3,4,5,6,7)) v(a, b, c, x, e, f, g)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7.y AS b, +
|
|
tt8.z AS c, +
|
|
x_1 AS x, +
|
|
tt7x.y AS e, +
|
|
tt8x.z AS f, +
|
|
tt8y.z AS g +
|
|
FROM tt7 +
|
|
FULL JOIN tt8 USING (x), +
|
|
tt7 tt7x(x_1, y) +
|
|
FULL JOIN tt8 tt8x(x_1, z) USING (x_1) +
|
|
FULL JOIN tt8 tt8y(x_1, z) USING (x_1);
|
|
(1 row)
|
|
|
|
alter table tt7 add column zz int;
|
|
alter table tt7 add column z int;
|
|
alter table tt7 drop column zz;
|
|
alter table tt8 add column z2 int;
|
|
select pg_get_viewdef('vv2', true);
|
|
pg_get_viewdef
|
|
------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.d, +
|
|
v.e +
|
|
FROM ( VALUES (1,2,3,4,5)) v(a, b, c, d, e)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7.y AS b, +
|
|
tt8.z AS c, +
|
|
tt8x.x_1 AS d, +
|
|
tt8x.z AS e +
|
|
FROM tt7 +
|
|
FULL JOIN tt8 USING (x), +
|
|
tt8 tt8x(x_1, z, z2);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('vv3', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.x, +
|
|
v.e, +
|
|
v.f +
|
|
FROM ( VALUES (1,2,3,4,5,6)) v(a, b, c, x, e, f)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7.y AS b, +
|
|
tt8.z AS c, +
|
|
x_1 AS x, +
|
|
tt7x.y AS e, +
|
|
tt8x.z AS f +
|
|
FROM tt7 +
|
|
FULL JOIN tt8 USING (x), +
|
|
tt7 tt7x(x_1, y, z) +
|
|
FULL JOIN tt8 tt8x(x_1, z, z2) USING (x_1);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('vv4', true);
|
|
pg_get_viewdef
|
|
----------------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.x, +
|
|
v.e, +
|
|
v.f, +
|
|
v.g +
|
|
FROM ( VALUES (1,2,3,4,5,6,7)) v(a, b, c, x, e, f, g)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7.y AS b, +
|
|
tt8.z AS c, +
|
|
x_1 AS x, +
|
|
tt7x.y AS e, +
|
|
tt8x.z AS f, +
|
|
tt8y.z AS g +
|
|
FROM tt7 +
|
|
FULL JOIN tt8 USING (x), +
|
|
tt7 tt7x(x_1, y, z) +
|
|
FULL JOIN tt8 tt8x(x_1, z, z2) USING (x_1) +
|
|
FULL JOIN tt8 tt8y(x_1, z, z2) USING (x_1);
|
|
(1 row)
|
|
|
|
-- Implicit coercions in a JOIN USING create issues similar to FULL JOIN
|
|
create table tt7a (x date, xx int, y int);
|
|
alter table tt7a drop column xx;
|
|
create table tt8a (x timestamptz, z int);
|
|
create view vv2a as
|
|
select * from (values(now(),2,3,now(),5)) v(a,b,c,d,e)
|
|
union all
|
|
select * from tt7a left join tt8a using (x), tt8a tt8ax;
|
|
select pg_get_viewdef('vv2a', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.d, +
|
|
v.e +
|
|
FROM ( VALUES (now(),2,3,now(),5)) v(a, b, c, d, e)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7a.y AS b, +
|
|
tt8a.z AS c, +
|
|
tt8ax.x_1 AS d, +
|
|
tt8ax.z AS e +
|
|
FROM tt7a +
|
|
LEFT JOIN tt8a USING (x), +
|
|
tt8a tt8ax(x_1, z);
|
|
(1 row)
|
|
|
|
--
|
|
-- Also check dropping a column that existed when the view was made
|
|
--
|
|
create table tt9 (x int, xx int, y int);
|
|
create table tt10 (x int, z int);
|
|
create view vv5 as select x,y,z from tt9 join tt10 using(x);
|
|
select pg_get_viewdef('vv5', true);
|
|
pg_get_viewdef
|
|
---------------------------
|
|
SELECT tt9.x, +
|
|
tt9.y, +
|
|
tt10.z +
|
|
FROM tt9 +
|
|
JOIN tt10 USING (x);
|
|
(1 row)
|
|
|
|
alter table tt9 drop column xx;
|
|
select pg_get_viewdef('vv5', true);
|
|
pg_get_viewdef
|
|
---------------------------
|
|
SELECT tt9.x, +
|
|
tt9.y, +
|
|
tt10.z +
|
|
FROM tt9 +
|
|
JOIN tt10 USING (x);
|
|
(1 row)
|
|
|
|
--
|
|
-- Another corner case is that we might add a column to a table below a
|
|
-- JOIN USING, and thereby make the USING column name ambiguous
|
|
--
|
|
create table tt11 (x int, y int);
|
|
create table tt12 (x int, z int);
|
|
create table tt13 (z int, q int);
|
|
create view vv6 as select x,y,z,q from
|
|
(tt11 join tt12 using(x)) join tt13 using(z);
|
|
select pg_get_viewdef('vv6', true);
|
|
pg_get_viewdef
|
|
---------------------------
|
|
SELECT tt11.x, +
|
|
tt11.y, +
|
|
tt12.z, +
|
|
tt13.q +
|
|
FROM tt11 +
|
|
JOIN tt12 USING (x) +
|
|
JOIN tt13 USING (z);
|
|
(1 row)
|
|
|
|
alter table tt11 add column z int;
|
|
select pg_get_viewdef('vv6', true);
|
|
pg_get_viewdef
|
|
------------------------------
|
|
SELECT tt11.x, +
|
|
tt11.y, +
|
|
tt12.z, +
|
|
tt13.q +
|
|
FROM tt11 tt11(x, y, z_1)+
|
|
JOIN tt12 USING (x) +
|
|
JOIN tt13 USING (z);
|
|
(1 row)
|
|
|
|
--
|
|
-- Check some cases involving dropped columns in a function's rowtype result
|
|
--
|
|
create table tt14t (f1 text, f2 text, f3 text, f4 text);
|
|
insert into tt14t values('foo', 'bar', 'baz', 'quux');
|
|
alter table tt14t drop column f2;
|
|
create function tt14f() returns setof tt14t as
|
|
$$
|
|
declare
|
|
rec1 record;
|
|
begin
|
|
for rec1 in select * from tt14t
|
|
loop
|
|
return next rec1;
|
|
end loop;
|
|
end;
|
|
$$
|
|
language plpgsql;
|
|
create view tt14v as select t.* from tt14f() t;
|
|
select pg_get_viewdef('tt14v', true);
|
|
pg_get_viewdef
|
|
--------------------------------
|
|
SELECT t.f1, +
|
|
t.f3, +
|
|
t.f4 +
|
|
FROM tt14f() t(f1, f3, f4);
|
|
(1 row)
|
|
|
|
select * from tt14v;
|
|
f1 | f3 | f4
|
|
-----+-----+------
|
|
foo | baz | quux
|
|
(1 row)
|
|
|
|
-- this perhaps should be rejected, but it isn't:
|
|
alter table tt14t drop column f3;
|
|
-- f3 is still in the view but will read as nulls
|
|
select pg_get_viewdef('tt14v', true);
|
|
pg_get_viewdef
|
|
--------------------------------
|
|
SELECT t.f1, +
|
|
t.f3, +
|
|
t.f4 +
|
|
FROM tt14f() t(f1, f3, f4);
|
|
(1 row)
|
|
|
|
select * from tt14v;
|
|
f1 | f3 | f4
|
|
-----+----+------
|
|
foo | | quux
|
|
(1 row)
|
|
|
|
-- check display of whole-row variables in some corner cases
|
|
create type nestedcomposite as (x int8_tbl);
|
|
create view tt15v as select row(i)::nestedcomposite from int8_tbl i;
|
|
select * from tt15v;
|
|
row
|
|
------------------------------------------
|
|
("(123,456)")
|
|
("(123,4567890123456789)")
|
|
("(4567890123456789,123)")
|
|
("(4567890123456789,4567890123456789)")
|
|
("(4567890123456789,-4567890123456789)")
|
|
(5 rows)
|
|
|
|
select pg_get_viewdef('tt15v', true);
|
|
pg_get_viewdef
|
|
------------------------------------------------------
|
|
SELECT ROW(i.*::int8_tbl)::nestedcomposite AS "row"+
|
|
FROM int8_tbl i;
|
|
(1 row)
|
|
|
|
select row(i.*::int8_tbl)::nestedcomposite from int8_tbl i;
|
|
row
|
|
------------------------------------------
|
|
("(123,456)")
|
|
("(123,4567890123456789)")
|
|
("(4567890123456789,123)")
|
|
("(4567890123456789,4567890123456789)")
|
|
("(4567890123456789,-4567890123456789)")
|
|
(5 rows)
|
|
|
|
create view tt16v as select * from int8_tbl i, lateral(values(i)) ss;
|
|
select * from tt16v;
|
|
q1 | q2 | column1
|
|
------------------+-------------------+--------------------------------------
|
|
123 | 456 | (123,456)
|
|
123 | 4567890123456789 | (123,4567890123456789)
|
|
4567890123456789 | 123 | (4567890123456789,123)
|
|
4567890123456789 | 4567890123456789 | (4567890123456789,4567890123456789)
|
|
4567890123456789 | -4567890123456789 | (4567890123456789,-4567890123456789)
|
|
(5 rows)
|
|
|
|
select pg_get_viewdef('tt16v', true);
|
|
pg_get_viewdef
|
|
-------------------------------------------
|
|
SELECT i.q1, +
|
|
i.q2, +
|
|
ss.column1 +
|
|
FROM int8_tbl i, +
|
|
LATERAL ( VALUES (i.*::int8_tbl)) ss;
|
|
(1 row)
|
|
|
|
select * from int8_tbl i, lateral(values(i.*::int8_tbl)) ss;
|
|
q1 | q2 | column1
|
|
------------------+-------------------+--------------------------------------
|
|
123 | 456 | (123,456)
|
|
123 | 4567890123456789 | (123,4567890123456789)
|
|
4567890123456789 | 123 | (4567890123456789,123)
|
|
4567890123456789 | 4567890123456789 | (4567890123456789,4567890123456789)
|
|
4567890123456789 | -4567890123456789 | (4567890123456789,-4567890123456789)
|
|
(5 rows)
|
|
|
|
create view tt17v as select * from int8_tbl i where i in (values(i));
|
|
select * from tt17v;
|
|
q1 | q2
|
|
------------------+-------------------
|
|
123 | 456
|
|
123 | 4567890123456789
|
|
4567890123456789 | 123
|
|
4567890123456789 | 4567890123456789
|
|
4567890123456789 | -4567890123456789
|
|
(5 rows)
|
|
|
|
select pg_get_viewdef('tt17v', true);
|
|
pg_get_viewdef
|
|
---------------------------------------------
|
|
SELECT i.q1, +
|
|
i.q2 +
|
|
FROM int8_tbl i +
|
|
WHERE (i.* IN ( VALUES (i.*::int8_tbl)));
|
|
(1 row)
|
|
|
|
select * from int8_tbl i where i.* in (values(i.*::int8_tbl));
|
|
q1 | q2
|
|
------------------+-------------------
|
|
123 | 456
|
|
123 | 4567890123456789
|
|
4567890123456789 | 123
|
|
4567890123456789 | 4567890123456789
|
|
4567890123456789 | -4567890123456789
|
|
(5 rows)
|
|
|
|
-- clean up all the random objects we made above
|
|
set client_min_messages = warning;
|
|
DROP SCHEMA temp_view_test CASCADE;
|
|
DROP SCHEMA testviewschm2 CASCADE;
|