mirror of
https://github.com/postgres/postgres.git
synced 2025-05-28 00:03:23 -04:00
Add new subselect test.
This commit is contained in:
parent
ca38b10c00
commit
ca45412853
142
src/test/regress/expected/subselect.out
Normal file
142
src/test/regress/expected/subselect.out
Normal file
@ -0,0 +1,142 @@
|
||||
QUERY: SELECT 1 AS one WHERE 1 IN (SELECT 1);
|
||||
one
|
||||
---
|
||||
1
|
||||
(1 row)
|
||||
|
||||
QUERY: SELECT 1 AS zero WHERE 1 NOT IN (SELECT 1);
|
||||
zero
|
||||
----
|
||||
(0 rows)
|
||||
|
||||
QUERY: SELECT 1 AS zero WHERE 1 IN (SELECT 2);
|
||||
zero
|
||||
----
|
||||
(0 rows)
|
||||
|
||||
QUERY: CREATE TABLE SUBSELECT_TBL (
|
||||
f1 integer,
|
||||
f2 integer,
|
||||
f3 float
|
||||
);
|
||||
QUERY: INSERT INTO SUBSELECT_TBL VALUES (1, 2, 3);
|
||||
QUERY: INSERT INTO SUBSELECT_TBL VALUES (2, 3, 4);
|
||||
QUERY: INSERT INTO SUBSELECT_TBL VALUES (3, 4, 5);
|
||||
QUERY: INSERT INTO SUBSELECT_TBL VALUES (1, 1, 1);
|
||||
QUERY: INSERT INTO SUBSELECT_TBL VALUES (2, 2, 2);
|
||||
QUERY: INSERT INTO SUBSELECT_TBL VALUES (3, 3, 3);
|
||||
QUERY: INSERT INTO SUBSELECT_TBL VALUES (6, 7, 8);
|
||||
QUERY: INSERT INTO SUBSELECT_TBL VALUES (8, 9, NULL);
|
||||
QUERY: SELECT '' AS eight, * FROM SUBSELECT_TBL;
|
||||
eight|f1|f2|f3
|
||||
-----+--+--+--
|
||||
| 1| 2| 3
|
||||
| 2| 3| 4
|
||||
| 3| 4| 5
|
||||
| 1| 1| 1
|
||||
| 2| 2| 2
|
||||
| 3| 3| 3
|
||||
| 6| 7| 8
|
||||
| 8| 9|
|
||||
(8 rows)
|
||||
|
||||
QUERY: SELECT '' AS two, f1 AS "Constant Select" FROM SUBSELECT_TBL
|
||||
WHERE f1 IN (SELECT 1);
|
||||
two|Constant Select
|
||||
---+---------------
|
||||
| 1
|
||||
| 1
|
||||
(2 rows)
|
||||
|
||||
QUERY: SELECT '' AS six, f1 AS "Uncorrelated Field" FROM SUBSELECT_TBL
|
||||
WHERE f1 IN (SELECT f2 FROM SUBSELECT_TBL);
|
||||
six|Uncorrelated Field
|
||||
---+------------------
|
||||
| 1
|
||||
| 2
|
||||
| 3
|
||||
| 1
|
||||
| 2
|
||||
| 3
|
||||
(6 rows)
|
||||
|
||||
QUERY: SELECT '' AS six, f1 AS "Uncorrelated Field" FROM SUBSELECT_TBL
|
||||
WHERE f1 IN (SELECT f2 FROM SUBSELECT_TBL WHERE
|
||||
f2 IN (SELECT f1 FROM SUBSELECT_TBL));
|
||||
six|Uncorrelated Field
|
||||
---+------------------
|
||||
| 1
|
||||
| 2
|
||||
| 3
|
||||
| 1
|
||||
| 2
|
||||
| 3
|
||||
(6 rows)
|
||||
|
||||
QUERY: SELECT '' AS six, f1 AS "Correlated Field", f3 AS "Second Field"
|
||||
FROM SUBSELECT_TBL
|
||||
WHERE f1 IN (SELECT f2 FROM SUBSELECT_TBL WHERE f2 = f1);
|
||||
six|Correlated Field|Second Field
|
||||
---+----------------+------------
|
||||
| 1| 3
|
||||
| 2| 4
|
||||
| 3| 5
|
||||
| 1| 1
|
||||
| 2| 2
|
||||
| 3| 3
|
||||
(6 rows)
|
||||
|
||||
QUERY: SELECT '' AS six, f1 AS "Correlated Field", f3 AS "Second Field"
|
||||
FROM SUBSELECT_TBL
|
||||
WHERE f1 IN (SELECT f2 FROM SUBSELECT_TBL WHERE CAST(f2 AS float) = f3);
|
||||
six|Correlated Field|Second Field
|
||||
---+----------------+------------
|
||||
| 1| 3
|
||||
| 2| 4
|
||||
| 3| 5
|
||||
| 1| 1
|
||||
| 2| 2
|
||||
| 3| 3
|
||||
(6 rows)
|
||||
|
||||
QUERY: SELECT '' AS six, f1 AS "Correlated Field", f3 AS "Second Field"
|
||||
FROM SUBSELECT_TBL
|
||||
WHERE f1 IN (SELECT f2 FROM SUBSELECT_TBL WHERE f2 = CAST(f3 AS integer));
|
||||
ERROR: dtoi4: unable to convert null
|
||||
QUERY: SELECT '' AS five, f1 AS "Correlated Field"
|
||||
FROM SUBSELECT_TBL
|
||||
WHERE (f1, f2) IN (SELECT f2, CAST(f3 AS int4) FROM SUBSELECT_TBL WHERE f3 IS NOT NULL);
|
||||
five|Correlated Field
|
||||
----+----------------
|
||||
| 2
|
||||
| 3
|
||||
| 1
|
||||
| 2
|
||||
| 3
|
||||
(5 rows)
|
||||
|
||||
QUERY: SELECT '' AS three, f1 AS "Correlated Field"
|
||||
FROM SUBSELECT_TBL
|
||||
WHERE (f1, f2) NOT IN (SELECT f2, CAST(f3 AS int4) FROM SUBSELECT_TBL WHERE f3 IS NOT NULL);
|
||||
three|Correlated Field
|
||||
-----+----------------
|
||||
| 1
|
||||
| 6
|
||||
| 8
|
||||
(3 rows)
|
||||
|
||||
QUERY: SELECT '' AS eight, ss.f1 AS "Correlated Field", ss.f3 AS "Second Field"
|
||||
FROM SUBSELECT_TBL ss
|
||||
WHERE f1 NOT IN (SELECT f1 FROM INT4_TBL WHERE f1 != ss.f1);
|
||||
eight|Correlated Field|Second Field
|
||||
-----+----------------+------------
|
||||
| 1| 3
|
||||
| 2| 4
|
||||
| 3| 5
|
||||
| 1| 1
|
||||
| 2| 2
|
||||
| 3| 3
|
||||
| 6| 8
|
||||
| 8|
|
||||
(8 rows)
|
||||
|
71
src/test/regress/sql/subselect.sql
Normal file
71
src/test/regress/sql/subselect.sql
Normal file
@ -0,0 +1,71 @@
|
||||
--
|
||||
-- Subselects
|
||||
--
|
||||
|
||||
SELECT 1 AS one WHERE 1 IN (SELECT 1);
|
||||
|
||||
SELECT 1 AS zero WHERE 1 NOT IN (SELECT 1);
|
||||
|
||||
SELECT 1 AS zero WHERE 1 IN (SELECT 2);
|
||||
|
||||
-- Set up some simple test tables
|
||||
|
||||
CREATE TABLE SUBSELECT_TBL (
|
||||
f1 integer,
|
||||
f2 integer,
|
||||
f3 float
|
||||
);
|
||||
|
||||
INSERT INTO SUBSELECT_TBL VALUES (1, 2, 3);
|
||||
INSERT INTO SUBSELECT_TBL VALUES (2, 3, 4);
|
||||
INSERT INTO SUBSELECT_TBL VALUES (3, 4, 5);
|
||||
INSERT INTO SUBSELECT_TBL VALUES (1, 1, 1);
|
||||
INSERT INTO SUBSELECT_TBL VALUES (2, 2, 2);
|
||||
INSERT INTO SUBSELECT_TBL VALUES (3, 3, 3);
|
||||
INSERT INTO SUBSELECT_TBL VALUES (6, 7, 8);
|
||||
INSERT INTO SUBSELECT_TBL VALUES (8, 9, NULL);
|
||||
|
||||
SELECT '' AS eight, * FROM SUBSELECT_TBL;
|
||||
|
||||
-- Uncorrelated subselects
|
||||
|
||||
SELECT '' AS two, f1 AS "Constant Select" FROM SUBSELECT_TBL
|
||||
WHERE f1 IN (SELECT 1);
|
||||
|
||||
SELECT '' AS six, f1 AS "Uncorrelated Field" FROM SUBSELECT_TBL
|
||||
WHERE f1 IN (SELECT f2 FROM SUBSELECT_TBL);
|
||||
|
||||
SELECT '' AS six, f1 AS "Uncorrelated Field" FROM SUBSELECT_TBL
|
||||
WHERE f1 IN (SELECT f2 FROM SUBSELECT_TBL WHERE
|
||||
f2 IN (SELECT f1 FROM SUBSELECT_TBL));
|
||||
|
||||
-- Correlated subselects
|
||||
|
||||
SELECT '' AS six, f1 AS "Correlated Field", f3 AS "Second Field"
|
||||
FROM SUBSELECT_TBL
|
||||
WHERE f1 IN (SELECT f2 FROM SUBSELECT_TBL WHERE f2 = f1);
|
||||
|
||||
SELECT '' AS six, f1 AS "Correlated Field", f3 AS "Second Field"
|
||||
FROM SUBSELECT_TBL
|
||||
WHERE f1 IN (SELECT f2 FROM SUBSELECT_TBL WHERE CAST(f2 AS float) = f3);
|
||||
|
||||
SELECT '' AS six, f1 AS "Correlated Field", f3 AS "Second Field"
|
||||
FROM SUBSELECT_TBL
|
||||
WHERE f1 IN (SELECT f2 FROM SUBSELECT_TBL WHERE f2 = CAST(f3 AS integer));
|
||||
|
||||
SELECT '' AS five, f1 AS "Correlated Field"
|
||||
FROM SUBSELECT_TBL
|
||||
WHERE (f1, f2) IN (SELECT f2, CAST(f3 AS int4) FROM SUBSELECT_TBL WHERE f3 IS NOT NULL);
|
||||
|
||||
SELECT '' AS three, f1 AS "Correlated Field"
|
||||
FROM SUBSELECT_TBL
|
||||
WHERE (f1, f2) NOT IN (SELECT f2, CAST(f3 AS int4) FROM SUBSELECT_TBL WHERE f3 IS NOT NULL);
|
||||
|
||||
--
|
||||
-- Use some existing tables in the regression test
|
||||
--
|
||||
|
||||
SELECT '' AS eight, ss.f1 AS "Correlated Field", ss.f3 AS "Second Field"
|
||||
FROM SUBSELECT_TBL ss
|
||||
WHERE f1 NOT IN (SELECT f1 FROM INT4_TBL WHERE f1 != ss.f1);
|
||||
|
@ -48,6 +48,7 @@ select
|
||||
select_into
|
||||
select_distinct
|
||||
select_distinct_on
|
||||
subselect
|
||||
aggregates
|
||||
transactions
|
||||
random
|
||||
|
Loading…
x
Reference in New Issue
Block a user