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# 2011 September 16
#
# 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
#
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set ::testprefix subquery2
ifcapable !subquery {
finish_test
return
}
do_test subquery2-1.1 {
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(c,d);
INSERT INTO t2 VALUES(1,1);
INSERT INTO t2 VALUES(3,9);
INSERT INTO t2 VALUES(5,25);
INSERT INTO t2 VALUES(7,49);
CREATE TABLE t3(e,f);
INSERT INTO t3 VALUES(1,1);
INSERT INTO t3 VALUES(3,27);
INSERT INTO t3 VALUES(5,125);
INSERT INTO t3 VALUES(7,343);
COMMIT;
}
execsql {
SELECT a FROM t1
WHERE b IN (SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
}
} {1 3 5 7}
do_test subquery2-1.2 {
execsql {
CREATE INDEX t1b ON t1(b);
SELECT a FROM t1
WHERE b IN (SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
}
} {1 3 5 7}
do_test subquery2-1.11 {
execsql {
SELECT a FROM t1
WHERE +b=(SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
}
} {1}
do_test subquery2-1.12 {
execsql {
SELECT a FROM t1
WHERE b=(SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
}
} {1}
do_test subquery2-1.21 {
execsql {
SELECT a FROM t1
WHERE +b=(SELECT x+1 FROM
(SELECT DISTINCT f/d AS x FROM t2 JOIN t3 ON d*a=f))
}
} {1 3 5 7}
do_test subquery2-1.22 {
execsql {
SELECT a FROM t1
WHERE b=(SELECT x+1 FROM
(SELECT DISTINCT f/d AS x FROM t2 JOIN t3 ON d*a=f))
}
} {1 3 5 7}
#-------------------------------------------------------------------------
# Test that ticket d6b36be38a has been fixed.
do_execsql_test 2.1 {
CREATE TABLE t4(a, b);
CREATE TABLE t5(a, b);
INSERT INTO t5 VALUES(3, 5);
INSERT INTO t4 VALUES(1, 1);
INSERT INTO t4 VALUES(2, 3);
INSERT INTO t4 VALUES(3, 6);
INSERT INTO t4 VALUES(4, 10);
INSERT INTO t4 VALUES(5, 15);
}
do_execsql_test 2.2 {
SELECT *
FROM (SELECT * FROM t4 ORDER BY a LIMIT -1 OFFSET 1)
LIMIT (SELECT a FROM t5)
} {2 3 3 6 4 10}
finish_test
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