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# 2001 September 15
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library. The
# focus of this file is testing UNION, INTERSECT and EXCEPT operators
# in SELECT statements.
#
# $Id: select4.test,v 1.30 2009/04/16 00:24:24 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# Most tests in this file depend on compound-select. But there are a couple
# right at the end that test DISTINCT, so we cannot omit the entire file.
#
ifcapable compound {
# Build some test data
#
execsql {
CREATE TABLE t1(n int, log int);
BEGIN;
}
for {set i 1} {$i<32} {incr i} {
for {set j 0} {(1<<$j)<$i} {incr j} {}
execsql "INSERT INTO t1 VALUES($i,$j)"
}
execsql {
COMMIT;
}
do_test select4-1.0 {
execsql {SELECT DISTINCT log FROM t1 ORDER BY log}
} {0 1 2 3 4 5}
# Union All operator
#
do_test select4-1.1a {
lsort [execsql {SELECT DISTINCT log FROM t1}]
} {0 1 2 3 4 5}
do_test select4-1.1b {
lsort [execsql {SELECT n FROM t1 WHERE log=3}]
} {5 6 7 8}
do_test select4-1.1c {
execsql {
SELECT DISTINCT log FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY log;
}
} {0 1 2 3 4 5 5 6 7 8}
do_test select4-1.1d {
execsql {
CREATE TABLE t2 AS
SELECT DISTINCT log FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY log;
SELECT * FROM t2;
}
} {0 1 2 3 4 5 5 6 7 8}
execsql {DROP TABLE t2}
do_test select4-1.1e {
execsql {
CREATE TABLE t2 AS
SELECT DISTINCT log FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY log DESC;
SELECT * FROM t2;
}
} {8 7 6 5 5 4 3 2 1 0}
execsql {DROP TABLE t2}
do_test select4-1.1f {
execsql {
SELECT DISTINCT log FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=2
}
} {0 1 2 3 4 5 3 4}
do_test select4-1.1g {
execsql {
CREATE TABLE t2 AS
SELECT DISTINCT log FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=2;
SELECT * FROM t2;
}
} {0 1 2 3 4 5 3 4}
execsql {DROP TABLE t2}
ifcapable subquery {
do_test select4-1.2 {
execsql {
SELECT log FROM t1 WHERE n IN
(SELECT DISTINCT log FROM t1 UNION ALL
SELECT n FROM t1 WHERE log=3)
ORDER BY log;
}
} {0 1 2 2 3 3 3 3}
}
do_test select4-1.3 {
set v [catch {execsql {
SELECT DISTINCT log FROM t1 ORDER BY log
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY log;
}} msg]
lappend v $msg
} {1 {ORDER BY clause should come after UNION ALL not before}}
# Union operator
#
do_test select4-2.1 {
execsql {
SELECT DISTINCT log FROM t1
UNION
SELECT n FROM t1 WHERE log=3
ORDER BY log;
}
} {0 1 2 3 4 5 6 7 8}
ifcapable subquery {
do_test select4-2.2 {
execsql {
SELECT log FROM t1 WHERE n IN
(SELECT DISTINCT log FROM t1 UNION
SELECT n FROM t1 WHERE log=3)
ORDER BY log;
}
} {0 1 2 2 3 3 3 3}
}
do_test select4-2.3 {
set v [catch {execsql {
SELECT DISTINCT log FROM t1 ORDER BY log
UNION
SELECT n FROM t1 WHERE log=3
ORDER BY log;
}} msg]
lappend v $msg
} {1 {ORDER BY clause should come after UNION not before}}
# Except operator
#
do_test select4-3.1.1 {
execsql {
SELECT DISTINCT log FROM t1
EXCEPT
SELECT n FROM t1 WHERE log=3
ORDER BY log;
}
} {0 1 2 3 4}
do_test select4-3.1.2 {
execsql {
CREATE TABLE t2 AS
SELECT DISTINCT log FROM t1
EXCEPT
SELECT n FROM t1 WHERE log=3
ORDER BY log;
SELECT * FROM t2;
}
} {0 1 2 3 4}
execsql {DROP TABLE t2}
do_test select4-3.1.3 {
execsql {
CREATE TABLE t2 AS
SELECT DISTINCT log FROM t1
EXCEPT
SELECT n FROM t1 WHERE log=3
ORDER BY log DESC;
SELECT * FROM t2;
}
} {4 3 2 1 0}
execsql {DROP TABLE t2}
ifcapable subquery {
do_test select4-3.2 {
execsql {
SELECT log FROM t1 WHERE n IN
(SELECT DISTINCT log FROM t1 EXCEPT
SELECT n FROM t1 WHERE log=3)
ORDER BY log;
}
} {0 1 2 2}
}
do_test select4-3.3 {
set v [catch {execsql {
SELECT DISTINCT log FROM t1 ORDER BY log
EXCEPT
SELECT n FROM t1 WHERE log=3
ORDER BY log;
}} msg]
lappend v $msg
} {1 {ORDER BY clause should come after EXCEPT not before}}
# Intersect operator
#
do_test select4-4.1.1 {
execsql {
SELECT DISTINCT log FROM t1
INTERSECT
SELECT n FROM t1 WHERE log=3
ORDER BY log;
}
} {5}
do_test select4-4.1.2 {
execsql {
SELECT DISTINCT log FROM t1
UNION ALL
SELECT 6
INTERSECT
SELECT n FROM t1 WHERE log=3
ORDER BY t1.log;
}
} {5 6}
do_test select4-4.1.3 {
execsql {
CREATE TABLE t2 AS
SELECT DISTINCT log FROM t1 UNION ALL SELECT 6
INTERSECT
SELECT n FROM t1 WHERE log=3
ORDER BY log;
SELECT * FROM t2;
}
} {5 6}
execsql {DROP TABLE t2}
do_test select4-4.1.4 {
execsql {
CREATE TABLE t2 AS
SELECT DISTINCT log FROM t1 UNION ALL SELECT 6
INTERSECT
SELECT n FROM t1 WHERE log=3
ORDER BY log DESC;
SELECT * FROM t2;
}
} {6 5}
execsql {DROP TABLE t2}
ifcapable subquery {
do_test select4-4.2 {
execsql {
SELECT log FROM t1 WHERE n IN
(SELECT DISTINCT log FROM t1 INTERSECT
SELECT n FROM t1 WHERE log=3)
ORDER BY log;
}
} {3}
}
do_test select4-4.3 {
set v [catch {execsql {
SELECT DISTINCT log FROM t1 ORDER BY log
INTERSECT
SELECT n FROM t1 WHERE log=3
ORDER BY log;
}} msg]
lappend v $msg
} {1 {ORDER BY clause should come after INTERSECT not before}}
# Various error messages while processing UNION or INTERSECT
#
do_test select4-5.1 {
set v [catch {execsql {
SELECT DISTINCT log FROM t2
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY log;
}} msg]
lappend v $msg
} {1 {no such table: t2}}
do_test select4-5.2 {
set v [catch {execsql {
SELECT DISTINCT log AS "xyzzy" FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY xyzzy;
}} msg]
lappend v $msg
} {0 {0 1 2 3 4 5 5 6 7 8}}
do_test select4-5.2b {
set v [catch {execsql {
SELECT DISTINCT log AS xyzzy FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY "xyzzy";
}} msg]
lappend v $msg
} {0 {0 1 2 3 4 5 5 6 7 8}}
do_test select4-5.2c {
set v [catch {execsql {
SELECT DISTINCT log FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY "xyzzy";
}} msg]
lappend v $msg
} {1 {1st ORDER BY term does not match any column in the result set}}
do_test select4-5.2d {
set v [catch {execsql {
SELECT DISTINCT log FROM t1
INTERSECT
SELECT n FROM t1 WHERE log=3
ORDER BY "xyzzy";
}} msg]
lappend v $msg
} {1 {1st ORDER BY term does not match any column in the result set}}
do_test select4-5.2e {
set v [catch {execsql {
SELECT DISTINCT log FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY n;
}} msg]
lappend v $msg
} {0 {0 1 2 3 4 5 5 6 7 8}}
do_test select4-5.2f {
catchsql {
SELECT DISTINCT log FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY log;
}
} {0 {0 1 2 3 4 5 5 6 7 8}}
do_test select4-5.2g {
catchsql {
SELECT DISTINCT log FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY 1;
}
} {0 {0 1 2 3 4 5 5 6 7 8}}
do_test select4-5.2h {
catchsql {
SELECT DISTINCT log FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY 2;
}
} {1 {1st ORDER BY term out of range - should be between 1 and 1}}
do_test select4-5.2i {
catchsql {
SELECT DISTINCT 1, log FROM t1
UNION ALL
SELECT 2, n FROM t1 WHERE log=3
ORDER BY 2, 1;
}
} {0 {1 0 1 1 1 2 1 3 1 4 1 5 2 5 2 6 2 7 2 8}}
do_test select4-5.2j {
catchsql {
SELECT DISTINCT 1, log FROM t1
UNION ALL
SELECT 2, n FROM t1 WHERE log=3
ORDER BY 1, 2 DESC;
}
} {0 {1 5 1 4 1 3 1 2 1 1 1 0 2 8 2 7 2 6 2 5}}
do_test select4-5.2k {
catchsql {
SELECT DISTINCT 1, log FROM t1
UNION ALL
SELECT 2, n FROM t1 WHERE log=3
ORDER BY n, 1;
}
} {0 {1 0 1 1 1 2 1 3 1 4 1 5 2 5 2 6 2 7 2 8}}
do_test select4-5.3 {
set v [catch {execsql {
SELECT DISTINCT log, n FROM t1
UNION ALL
SELECT n FROM t1 WHERE log=3
ORDER BY log;
}} msg]
lappend v $msg
} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
do_test select4-5.3-3807-1 {
catchsql {
SELECT 1 UNION SELECT 2, 3 UNION SELECT 4, 5 ORDER BY 1;
}
} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
do_test select4-5.4 {
set v [catch {execsql {
SELECT log FROM t1 WHERE n=2
UNION ALL
SELECT log FROM t1 WHERE n=3
UNION ALL
SELECT log FROM t1 WHERE n=4
UNION ALL
SELECT log FROM t1 WHERE n=5
ORDER BY log;
}} msg]
lappend v $msg
} {0 {1 2 2 3}}
do_test select4-6.1 {
execsql {
SELECT log, count(*) as cnt FROM t1 GROUP BY log
UNION
SELECT log, n FROM t1 WHERE n=7
ORDER BY cnt, log;
}
} {0 1 1 1 2 2 3 4 3 7 4 8 5 15}
do_test select4-6.2 {
execsql {
SELECT log, count(*) FROM t1 GROUP BY log
UNION
SELECT log, n FROM t1 WHERE n=7
ORDER BY count(*), log;
}
} {0 1 1 1 2 2 3 4 3 7 4 8 5 15}
# NULLs are indistinct for the UNION operator.
# Make sure the UNION operator recognizes this
#
do_test select4-6.3 {
execsql {
SELECT NULL UNION SELECT NULL UNION
SELECT 1 UNION SELECT 2 AS 'x'
ORDER BY x;
}
} {{} 1 2}
do_test select4-6.3.1 {
execsql {
SELECT NULL UNION ALL SELECT NULL UNION ALL
SELECT 1 UNION ALL SELECT 2 AS 'x'
ORDER BY x;
}
} {{} {} 1 2}
# Make sure the DISTINCT keyword treats NULLs as indistinct.
#
ifcapable subquery {
do_test select4-6.4 {
execsql {
SELECT * FROM (
SELECT NULL, 1 UNION ALL SELECT NULL, 1
);
}
} {{} 1 {} 1}
do_test select4-6.5 {
execsql {
SELECT DISTINCT * FROM (
SELECT NULL, 1 UNION ALL SELECT NULL, 1
);
}
} {{} 1}
do_test select4-6.6 {
execsql {
SELECT DISTINCT * FROM (
SELECT 1,2 UNION ALL SELECT 1,2
);
}
} {1 2}
}
# Test distinctness of NULL in other ways.
#
do_test select4-6.7 {
execsql {
SELECT NULL EXCEPT SELECT NULL
}
} {}
# Make sure column names are correct when a compound select appears as
# an expression in the WHERE clause.
#
do_test select4-7.1 {
execsql {
CREATE TABLE t2 AS SELECT log AS 'x', count(*) AS 'y' FROM t1 GROUP BY log;
SELECT * FROM t2 ORDER BY x;
}
} {0 1 1 1 2 2 3 4 4 8 5 15}
ifcapable subquery {
do_test select4-7.2 {
execsql2 {
SELECT * FROM t1 WHERE n IN (SELECT n FROM t1 INTERSECT SELECT x FROM t2)
ORDER BY n
}
} {n 1 log 0 n 2 log 1 n 3 log 2 n 4 log 2 n 5 log 3}
do_test select4-7.3 {
execsql2 {
SELECT * FROM t1 WHERE n IN (SELECT n FROM t1 EXCEPT SELECT x FROM t2)
ORDER BY n LIMIT 2
}
} {n 6 log 3 n 7 log 3}
do_test select4-7.4 {
execsql2 {
SELECT * FROM t1 WHERE n IN (SELECT n FROM t1 UNION SELECT x FROM t2)
ORDER BY n LIMIT 2
}
} {n 1 log 0 n 2 log 1}
} ;# ifcapable subquery
} ;# ifcapable compound
# Make sure DISTINCT works appropriately on TEXT and NUMERIC columns.
do_test select4-8.1 {
execsql {
BEGIN;
CREATE TABLE t3(a text, b float, c text);
INSERT INTO t3 VALUES(1, 1.1, '1.1');
INSERT INTO t3 VALUES(2, 1.10, '1.10');
INSERT INTO t3 VALUES(3, 1.10, '1.1');
INSERT INTO t3 VALUES(4, 1.1, '1.10');
INSERT INTO t3 VALUES(5, 1.2, '1.2');
INSERT INTO t3 VALUES(6, 1.3, '1.3');
COMMIT;
}
execsql {
SELECT DISTINCT b FROM t3 ORDER BY c;
}
} {1.1 1.2 1.3}
do_test select4-8.2 {
execsql {
SELECT DISTINCT c FROM t3 ORDER BY c;
}
} {1.1 1.10 1.2 1.3}
# Make sure the names of columns are taken from the right-most subquery
# right in a compound query. Ticket #1721
#
ifcapable compound {
do_test select4-9.1 {
execsql2 {
SELECT x, y FROM t2 UNION SELECT a, b FROM t3 ORDER BY x LIMIT 1
}
} {x 0 y 1}
do_test select4-9.2 {
execsql2 {
SELECT x, y FROM t2 UNION ALL SELECT a, b FROM t3 ORDER BY x LIMIT 1
}
} {x 0 y 1}
do_test select4-9.3 {
execsql2 {
SELECT x, y FROM t2 EXCEPT SELECT a, b FROM t3 ORDER BY x LIMIT 1
}
} {x 0 y 1}
do_test select4-9.4 {
execsql2 {
SELECT x, y FROM t2 INTERSECT SELECT 0 AS a, 1 AS b;
}
} {x 0 y 1}
do_test select4-9.5 {
execsql2 {
SELECT 0 AS x, 1 AS y
UNION
SELECT 2 AS p, 3 AS q
UNION
SELECT 4 AS a, 5 AS b
ORDER BY x LIMIT 1
}
} {x 0 y 1}
ifcapable subquery {
do_test select4-9.6 {
execsql2 {
SELECT * FROM (
SELECT 0 AS x, 1 AS y
UNION
SELECT 2 AS p, 3 AS q
UNION
SELECT 4 AS a, 5 AS b
) ORDER BY 1 LIMIT 1;
}
} {x 0 y 1}
do_test select4-9.7 {
execsql2 {
SELECT * FROM (
SELECT 0 AS x, 1 AS y
UNION
SELECT 2 AS p, 3 AS q
UNION
SELECT 4 AS a, 5 AS b
) ORDER BY x LIMIT 1;
}
} {x 0 y 1}
} ;# ifcapable subquery
do_test select4-9.8 {
execsql {
SELECT 0 AS x, 1 AS y
UNION
SELECT 2 AS y, -3 AS x
ORDER BY x LIMIT 1;
}
} {0 1}
do_test select4-9.9.1 {
execsql2 {
SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS b, 4 AS a
}
} {a 1 b 2 a 3 b 4}
ifcapable subquery {
do_test select4-9.9.2 {
execsql2 {
SELECT * FROM (SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS b, 4 AS a)
WHERE b=3
}
} {}
do_test select4-9.10 {
execsql2 {
SELECT * FROM (SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS b, 4 AS a)
WHERE b=2
}
} {a 1 b 2}
do_test select4-9.11 {
execsql2 {
SELECT * FROM (SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS e, 4 AS b)
WHERE b=2
}
} {a 1 b 2}
do_test select4-9.12 {
execsql2 {
SELECT * FROM (SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS e, 4 AS b)
WHERE b>0
}
} {a 1 b 2 a 3 b 4}
} ;# ifcapable subquery
# Try combining DISTINCT, LIMIT, and OFFSET. Make sure they all work
# together.
#
do_test select4-10.1 {
execsql {
SELECT DISTINCT log FROM t1 ORDER BY log
}
} {0 1 2 3 4 5}
do_test select4-10.2 {
execsql {
SELECT DISTINCT log FROM t1 ORDER BY log LIMIT 4
}
} {0 1 2 3}
do_test select4-10.3 {
execsql {
SELECT DISTINCT log FROM t1 ORDER BY log LIMIT 0
}
} {}
do_test select4-10.4 {
execsql {
SELECT DISTINCT log FROM t1 ORDER BY log LIMIT -1
}
} {0 1 2 3 4 5}
do_test select4-10.5 {
execsql {
SELECT DISTINCT log FROM t1 ORDER BY log LIMIT -1 OFFSET 2
}
} {2 3 4 5}
do_test select4-10.6 {
execsql {
SELECT DISTINCT log FROM t1 ORDER BY log LIMIT 3 OFFSET 2
}
} {2 3 4}
do_test select4-10.7 {
execsql {
SELECT DISTINCT log FROM t1 ORDER BY +log LIMIT 3 OFFSET 20
}
} {}
do_test select4-10.8 {
execsql {
SELECT DISTINCT log FROM t1 ORDER BY log LIMIT 0 OFFSET 3
}
} {}
do_test select4-10.9 {
execsql {
SELECT DISTINCT max(n), log FROM t1 ORDER BY +log; -- LIMIT 2 OFFSET 1
}
} {31 5}
# Make sure compound SELECTs with wildly different numbers of columns
# do not cause assertion faults due to register allocation issues.
#
do_test select4-11.1 {
catchsql {
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
UNION
SELECT x FROM t2
}
} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
do_test select4-11.2 {
catchsql {
SELECT x FROM t2
UNION
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
}
} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
do_test select4-11.3 {
catchsql {
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
UNION ALL
SELECT x FROM t2
}
} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
do_test select4-11.4 {
catchsql {
SELECT x FROM t2
UNION ALL
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
}
} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
do_test select4-11.5 {
catchsql {
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
EXCEPT
SELECT x FROM t2
}
} {1 {SELECTs to the left and right of EXCEPT do not have the same number of result columns}}
do_test select4-11.6 {
catchsql {
SELECT x FROM t2
EXCEPT
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
}
} {1 {SELECTs to the left and right of EXCEPT do not have the same number of result columns}}
do_test select4-11.7 {
catchsql {
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
INTERSECT
SELECT x FROM t2
}
} {1 {SELECTs to the left and right of INTERSECT do not have the same number of result columns}}
do_test select4-11.8 {
catchsql {
SELECT x FROM t2
INTERSECT
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
}
} {1 {SELECTs to the left and right of INTERSECT do not have the same number of result columns}}
do_test select4-11.11 {
catchsql {
SELECT x FROM t2
UNION
SELECT x FROM t2
UNION ALL
SELECT x FROM t2
EXCEPT
SELECT x FROM t2
INTERSECT
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
}
} {1 {SELECTs to the left and right of INTERSECT do not have the same number of result columns}}
do_test select4-11.12 {
catchsql {
SELECT x FROM t2
UNION
SELECT x FROM t2
UNION ALL
SELECT x FROM t2
EXCEPT
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
EXCEPT
SELECT x FROM t2
}
} {1 {SELECTs to the left and right of EXCEPT do not have the same number of result columns}}
do_test select4-11.13 {
catchsql {
SELECT x FROM t2
UNION
SELECT x FROM t2
UNION ALL
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
UNION ALL
SELECT x FROM t2
EXCEPT
SELECT x FROM t2
}
} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
do_test select4-11.14 {
catchsql {
SELECT x FROM t2
UNION
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
UNION
SELECT x FROM t2
UNION ALL
SELECT x FROM t2
EXCEPT
SELECT x FROM t2
}
} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
do_test select4-11.15 {
catchsql {
SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
UNION
SELECT x FROM t2
INTERSECT
SELECT x FROM t2
UNION ALL
SELECT x FROM t2
EXCEPT
SELECT x FROM t2
}
} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
do_test select4-12.1 {
sqlite3 db2 :memory:
catchsql {
SELECT 1 UNION SELECT 2,3 UNION SELECT 4,5 ORDER BY 1;
} db2
} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
} ;# ifcapable compound
finish_test
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