64 lines
1.5 KiB
Plaintext
64 lines
1.5 KiB
Plaintext
# 2005 January 19
|
|
#
|
|
# 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 script is testing correlated subqueries
|
|
#
|
|
# $Id: subquery.test,v 1.2 2005/01/21 11:55:28 danielk1977 Exp $
|
|
#
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
|
|
ifcapable !subquery {
|
|
finish_test
|
|
return
|
|
}
|
|
|
|
do_test subquery-1.1 {
|
|
execsql {
|
|
BEGIN;
|
|
CREATE TABLE t1(a,b);
|
|
INSERT INTO t1 VALUES(1,2);
|
|
INSERT INTO t1 VALUES(3,4);
|
|
INSERT INTO t1 VALUES(5,6);
|
|
INSERT INTO t1 VALUES(7,8);
|
|
CREATE TABLE t2(x,y);
|
|
INSERT INTO t2 VALUES(1,1);
|
|
INSERT INTO t2 VALUES(3,9);
|
|
INSERT INTO t2 VALUES(5,25);
|
|
INSERT INTO t2 VALUES(7,49);
|
|
COMMIT;
|
|
}
|
|
execsql {
|
|
SELECT a, (SELECT y FROM t2 WHERE x=a) FROM t1 WHERE b<8
|
|
}
|
|
} {1 1 3 9 5 25}
|
|
do_test subquery-1.2 {
|
|
execsql {
|
|
UPDATE t1 SET b=b+(SELECT y FROM t2 WHERE x=a);
|
|
SELECT * FROM t1;
|
|
}
|
|
} {1 3 3 13 5 31 7 57}
|
|
|
|
do_test subquery-1.3 {
|
|
execsql {
|
|
SELECT b FROM t1 WHERE EXISTS(SELECT * FROM t2 WHERE y=a)
|
|
}
|
|
} {3}
|
|
do_test subquery-1.4 {
|
|
execsql {
|
|
SELECT b FROM t1 WHERE NOT EXISTS(SELECT * FROM t2 WHERE y=a)
|
|
}
|
|
} {13 31 57}
|
|
|
|
|
|
finish_test
|