CREATE TABLE t1(a, b);
INSERT INTO t1 VALUES(1, 'one');
INSERT INTO t1 VALUES(2, 'two');
INSERT INTO t1 VALUES(3, 'three');
CREATE INDEX i1 ON t1(b || 'x');
SELECT 'TWOX' == (b || 'x') FROM t1 WHERE (b || 'x')>'onex'
SELECT 'TWOX' == (b || 'x') COLLATE nocase FROM t1 WHERE (b || 'x')>'onex'
CREATE INDEX i2 ON t1(a+1);
SELECT a+1, quote(a+1) FROM t1 ORDER BY 1;
CREATE TABLE t1(a, b);
CREATE INDEX i1 ON t1(a, b);
CREATE TABLE t2(x);
INSERT INTO t2 VALUES('.ABC');
INSERT INTO t2 VALUES('.abcd');
INSERT INTO t2 VALUES('.defg');
INSERT INTO t2 VALUES('.DEF');
SELECT x FROM t2 ORDER BY substr(x, 2) COLLATE nocase;
CREATE INDEX i2 ON t2( substr(x, 2) );
SELECT x FROM t2 ORDER BY substr(x, 2) COLLATE nocase;
CREATE TABLE t3(x);
CREATE INDEX i3 ON t3(json_extract(x, '$.a'), json_extract(x, '$.b'));
CREATE TABLE t4(a, b);
INSERT INTO t4 VALUES('.ABC', 1);
INSERT INTO t4 VALUES('.abc', 2);
INSERT INTO t4 VALUES('.ABC', 3);
INSERT INTO t4 VALUES('.abc', 4);
SELECT * FROM t4
WHERE substr(a, 2) = 'abc' COLLATE NOCASE
ORDER BY substr(a, 2), b;
CREATE INDEX i4 ON t4( substr(a, 2) COLLATE NOCASE, b );
SELECT * FROM t4
WHERE substr(a, 2) = 'abc' COLLATE NOCASE
ORDER BY substr(a, 2), b;
DROP INDEX i4;
UPDATE t4 SET a = printf('%s%d',a,b);
SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE nocase;
SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE binary;
CREATE INDEX i4 ON t4( Substr(a,-2) COLLATE nocase );
SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE nocase;
EXPLAIN QUERY PLAN
SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE nocase;
SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE binary;
CREATE TABLE t2(a,b,c,d,e,f);
INSERT INTO t2 VALUES(2,3,4,5,6,7);
CREATE INDEX t2abc ON t2(a+b+c);
CREATE INDEX t2cd ON t2(c*d);
CREATE INDEX t2def ON t2(d,e+25*f);
SELECT sqlite_master.name
FROM sqlite_master, explain('UPDATE t2 SET b=b+1')
WHERE explain.opcode LIKE 'Open%'
AND sqlite_master.rootpage=explain.p2
ORDER BY 1;
SELECT sqlite_master.name
FROM sqlite_master, explain('UPDATE t2 SET c=c+1')
WHERE explain.opcode LIKE 'Open%'
AND sqlite_master.rootpage=explain.p2
ORDER BY 1;
SELECT sqlite_master.name
FROM sqlite_master, explain('UPDATE t2 SET c=c+1, f=NULL')
WHERE explain.opcode LIKE 'Open%'
AND sqlite_master.rootpage=explain.p2
ORDER BY 1;
CREATE TABLE t5(a INTEGER, b INTEGER);
INSERT INTO t5 VALUES(2, 4), (3, 9);
SELECT * FROM t5 WHERE abs(a)=2 or abs(b)=9;
CREATE INDEX t5a ON t5( abs(a) );
CREATE INDEX t5b ON t5( abs(b) );
SELECT * FROM t5 WHERE abs(a)=2 or abs(b)=9;
CREATE TABLE x1(a INTEGER PRIMARY KEY, b);
INSERT INTO x1 VALUES
(1, 123), (2, '123'), (3, '123abc'), (4, 123.0), (5, 1234);
SELECT a, b FROM x1 WHERE CAST(b AS INTEGER) = 123;
CREATE INDEX x1i ON x1( CAST(b AS INTEGER) );
SELECT a, b FROM x1 WHERE CAST(b AS INTEGER) = 123;
SELECT a, b FROM x1 WHERE CAST(b AS TEXT) = 123;
CREATE INDEX x1i2 ON x1( CAST(b AS TEXT) );
SELECT a, b FROM x1 WHERE CAST(b AS TEXT) = 123;
CREATE TABLE IF NOT EXISTS t0(c0);
INSERT INTO t0(c0) VALUES (-9223372036854775808);
BEGIN;
COMMIT;
SELECT sql FROM sqlite_master WHERE tbl_name = 't0';
CREATE INDEX i0 ON t0(c0);
REINDEX;
CREATE TABLE t0(c0);
CREATE INDEX i0 ON t0(c0) WHERE c0 NOT NULL;
INSERT INTO t0(c0) VALUES (NULL);
SELECT * FROM t0 WHERE ~('' BETWEEN t0.c0 AND TRUE);
SELECT ~('' BETWEEN t0.c0 AND TRUE) FROM t0;
CREATE TABLE t1(a, b);
INSERT INTO t1 VALUES(1, 2), (3, 4);
CREATE TABLE t2(x, y);
CREATE TABLE t1(a INT, b INT);
CREATE INDEX t1x ON t1(a, abs(b));
CREATE TABLE t2(c INT, d INT);
INSERT INTO t1(a,b) VALUES(4,4),(5,-5),(5,20),(6,6);
INSERT INTO t2(c,d) VALUES(100,1),(200,1),(300,2);
SELECT *,
(SELECT max(c+abs(b)) FROM t2 GROUP BY d ORDER BY d LIMIT 1) AS subq
FROM t1 WHERE a=5;
CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
CREATE INDEX t1x ON t1 (b, +b COLLATE NOCASE);
INSERT INTO t1(a,b) VALUES(1,'abcde');
SELECT * FROM t1 AS a0
WHERE (SELECT count(a0.b=+a0.b COLLATE NOCASE IN (b)) FROM t1 GROUP BY 2.5)
ORDER BY a0.b;
CREATE TABLE t2(a TEXT);
INSERT INTO t2 VALUES('alice'),('bob'),('cindy'),('david');
CREATE INDEX t2x ON t2 (+a COLLATE NOCASE);
SELECT count(+a COLLATE NOCASE IN (SELECT 1)) AS x
FROM t2
GROUP BY SUBSTR(0,0);
CREATE TABLE t3 (a INT, b AS (-a));
CREATE INDEX t3x ON t3(b, a);
INSERT INTO t3(a) VALUES(44);
SELECT * FROM t3 AS a0
WHERE (SELECT sum(-a0.a=b) FROM t3 GROUP BY b)
GROUP BY b;