CREATE TABLE composer(
cid INTEGER PRIMARY KEY,
cname TEXT
);
CREATE TABLE album(
aid INTEGER PRIMARY KEY,
aname TEXT
);
CREATE TABLE track(
tid INTEGER PRIMARY KEY,
cid INTEGER REFERENCES composer,
aid INTEGER REFERENCES album,
title TEXT
);
CREATE INDEX track_i1 ON track(cid);
CREATE INDEX track_i2 ON track(aid);
INSERT INTO composer VALUES(1, 'W. A. Mozart');
INSERT INTO composer VALUES(2, 'Beethoven');
INSERT INTO composer VALUES(3, 'Thomas Tallis');
INSERT INTO composer VALUES(4, 'Joseph Hayden');
INSERT INTO composer VALUES(5, 'Thomas Weelkes');
INSERT INTO composer VALUES(6, 'J. S. Bach');
INSERT INTO composer VALUES(7, 'Orlando Gibbons');
INSERT INTO composer VALUES(8, 'Josquin des Prés');
INSERT INTO composer VALUES(9, 'Byrd');
INSERT INTO composer VALUES(10, 'Francis Poulenc');
INSERT INTO composer VALUES(11, 'Mendelsshon');
INSERT INTO composer VALUES(12, 'Zoltán Kodály');
INSERT INTO composer VALUES(13, 'Handel');
INSERT INTO album VALUES(100, 'Kodály: Missa Brevis');
INSERT INTO album VALUES(101, 'Messiah');
INSERT INTO album VALUES(102, 'Missa Brevis in D-, K.65');
INSERT INTO album VALUES(103, 'The complete English anthems');
INSERT INTO album VALUES(104, 'Mass in B Minor, BWV 232');
INSERT INTO track VALUES(10005, 12, 100, 'Sanctus');
INSERT INTO track VALUES(10007, 12, 100, 'Agnus Dei');
INSERT INTO track VALUES(10115, 13, 101, 'Surely He Hath Borne Our Griefs');
INSERT INTO track VALUES(10129, 13, 101, 'Since By Man Came Death');
INSERT INTO track VALUES(10206, 1, 102, 'Agnus Dei');
INSERT INTO track VALUES(10301, 3, 103, 'If Ye Love Me');
INSERT INTO track VALUES(10402, 6, 104, 'Domine Deus');
INSERT INTO track VALUES(10403, 6, 104, 'Qui tollis');
SELECT DISTINCT aname
FROM album, composer, track
WHERE unlikely(cname LIKE '%bach%')
AND composer.cid=track.cid
AND album.aid=track.aid;
SELECT DISTINCT aname
FROM album, composer, track
WHERE likelihood(cname LIKE '%bach%', 0.5)
AND composer.cid=track.cid
AND album.aid=track.aid;
SELECT DISTINCT aname
FROM album, composer, track
WHERE cname LIKE '%bach%'
AND composer.cid=track.cid
AND album.aid=track.aid;
SELECT DISTINCT aname
FROM album, composer, track
WHERE cname LIKE '%bach%'
AND unlikely(composer.cid=track.cid)
AND unlikely(album.aid=track.aid);
CREATE TABLE a(a1 PRIMARY KEY, a2);
CREATE TABLE b(b1 PRIMARY KEY, b2);
CREATE TABLE t4(x);
INSERT INTO t4 VALUES('right'),('wrong');
SELECT DISTINCT x
FROM (SELECT x FROM t4 GROUP BY x)
WHERE x='right'
ORDER BY x;
CREATE TABLE t1(a, b, c);
CREATE INDEX i1 ON t1(a, b);
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(i int, x, y, z);
INSERT INTO t1 VALUES (1,1,1,1), (2,2,2,2), (3,3,3,3), (4,4,4,4);
DROP TABLE IF EXISTS t2;
CREATE TABLE t2(i int, bool char);
INSERT INTO t2 VALUES(1,'T'), (2,'F');
SELECT count(*) FROM t1 LEFT JOIN t2 ON t1.i=t2.i AND bool='T';
SELECT count(*) FROM t1 LEFT JOIN t2 ON likely(t1.i=t2.i) AND bool='T';
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a, b, PRIMARY KEY(a,b));
INSERT INTO t1 VALUES(9,1),(1,2);
DROP TABLE IF EXISTS t2;
CREATE TABLE t2(x, y, PRIMARY KEY(x,y));
INSERT INTO t2 VALUES(3,3),(4,4);
SELECT likely(a), x FROM t1, t2 ORDER BY 1, 2;
SELECT unlikely(a), x FROM t1, t2 ORDER BY 1, 2;
SELECT likelihood(a,0.5), x FROM t1, t2 ORDER BY 1, 2;
SELECT coalesce(a,a), x FROM t1, t2 ORDER BY 1, 2;
DROP TABLE IF EXISTS t0;
CREATE TABLE t0 (c0);
INSERT INTO t0(c0) VALUES ('a');
SELECT LIKELY(t0.rowid) <= '0' FROM t0;
SELECT * FROM t0 WHERE LIKELY(t0.rowid) <= '0';
SELECT (t0.rowid) <= '0' FROM t0;
SELECT * FROM t0 WHERE (t0.rowid) <= '0';
SELECT unlikely(t0.rowid) <= '0', likelihood(t0.rowid,0.5) <= '0' FROM t0;
SELECT * FROM t0 WHERE unlikely(t0.rowid) <= '0';
SELECT * FROM t0 WHERE likelihood(t0.rowid, 0.5) <= '0';
SELECT unlikely(t0.rowid <= '0'),
likely(t0.rowid <= '0'),
likelihood(t0.rowid <= '0',0.5)
FROM t0;
SELECT * FROM t0 WHERE unlikely(t0.rowid <= '0');
SELECT * FROM t0 WHERE likelihood(t0.rowid <= '0', 0.5);
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a, b FLOAT);
INSERT INTO t1(a) VALUES(''),(NULL),('X'),(NULL);
SELECT coalesce(max(quote(a)),10) FROM t1 GROUP BY a;
CREATE TABLE a(b TEXT); INSERT INTO a VALUES(0),(4),(9);
CREATE TABLE c(d NUM);
CREATE VIEW f(g, h) AS SELECT b, 0 FROM a UNION SELECT d, d FROM c;
SELECT g = g FROM f GROUP BY h;
CREATE TABLE t1(x PRIMARY KEY, y);
INSERT INTO t1 VALUES('AAA', 'BBB');
CREATE TABLE t2(z);
INSERT INTO t2 VALUES('t2');
CREATE TABLE t3(x PRIMARY KEY, y);
INSERT INTO t3 VALUES('AAA', 'AAA');
SELECT * FROM t1 JOIN t2 ON unlikely(x=y) AND y='AAA'
SELECT * FROM t1 JOIN t2 ON likely(x=y) AND y='AAA'
SELECT * FROM t1 JOIN t2 ON x=y AND y='AAA'
SELECT * FROM t3 JOIN t2 ON unlikely(x=y) AND y='AAA'
SELECT * FROM t3 JOIN t2 ON likely(x=y) AND y='AAA'
SELECT * FROM t3 JOIN t2 ON x=y AND y='AAA'
CREATE TABLE t1(a REAL);
INSERT INTO t1(a) VALUES(123);
CREATE INDEX t1x1 ON t1(likely(a));
SELECT typeof(likely(a)) FROM t1 NOT INDEXED;
SELECT typeof(likely(a)) FROM t1 INDEXED BY t1x1;
CREATE INDEX t1x2 ON t1(abs(a));
SELECT typeof(abs(a)) FROM t1 NOT INDEXED;
SELECT typeof(abs(a)) FROM t1 INDEXED BY t1x2;