CREATE TABLE t1(a,b,c);
INSERT INTO t1(a,b,c)
/* 123456789 123456789 123456789 123456789 123456789 123456789 */
VALUES('In_the_beginning_was_the_Word',1,1),
('and_the_Word_was_with_God',1,2),
('and_the_Word_was_God',1,3),
('The_same_was_in_the_beginning_with_God',2,1),
('All_things_were_made_by_him',3,1),
('and_without_him_was_not_any_thing_made_that_was_made',3,2);
CREATE INDEX t1a1 ON t1(substr(a,1,12));
SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c;
EXPLAIN QUERY PLAN
SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c;
SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c;
EXPLAIN QUERY PLAN
SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c;
CREATE INDEX t1ba ON t1(b,substr(a,2,3),c);
SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c;
EXPLAIN QUERY PLAN
SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c;
SELECT rowid, substr(a,b,3), '|' FROM t1 ORDER BY 2;
CREATE INDEX t1abx ON t1(substr(a,b,3));
SELECT rowid FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +rowid;
EXPLAIN QUERY PLAN
SELECT rowid FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +rowid;
SELECT rowid FROM t1 WHERE +substr(a,b,3)<='and' ORDER BY +rowid;
SELECT rowid FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz')
ORDER BY +rowid;
EXPLAIN QUERY PLAN
SELECT rowid FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz')
ORDER BY +rowid;
ALTER TABLE t1 ADD COLUMN d;
UPDATE t1 SET d=length(a);
CREATE INDEX t1a2 ON t1(SUBSTR(a, 27, 3)) WHERE d>=29;
SELECT rowid, b, c FROM t1
WHERE substr(a,27,3)=='ord' AND d>=29;
EXPLAIN QUERY PLAN
SELECT rowid, b, c FROM t1
WHERE substr(a,27,3)=='ord' AND d>=29;
CREATE INDEX t1alen ON t1(length(a));
SELECT length(a) FROM t1 ORDER BY length(a);
EXPLAIN QUERY PLAN
SELECT length(a) FROM t1 ORDER BY length(a);
SELECT length(a) FROM t1 ORDER BY length(a) DESC;
EXPLAIN QUERY PLAN
SELECT length(a) FROM t1 ORDER BY length(a) DESC;
DROP TABLE t1;
CREATE TABLE t1(id ANY PRIMARY KEY, a,b,c) WITHOUT ROWID;
INSERT INTO t1(id,a,b,c)
VALUES(1,'In_the_beginning_was_the_Word',1,1),
(2,'and_the_Word_was_with_God',1,2),
(3,'and_the_Word_was_God',1,3),
(4,'The_same_was_in_the_beginning_with_God',2,1),
(5,'All_things_were_made_by_him',3,1),
(6,'and_without_him_was_not_any_thing_made_that_was_made',3,2);
CREATE INDEX t1a1 ON t1(substr(a,1,12));
SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c;
EXPLAIN QUERY PLAN
SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c;
SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c;
EXPLAIN QUERY PLAN
SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c;
CREATE INDEX t1ba ON t1(b,substr(a,2,3),c);
SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c;
EXPLAIN QUERY PLAN
SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c;
SELECT id, substr(a,b,3), '|' FROM t1 ORDER BY 2;
CREATE INDEX t1abx ON t1(substr(a,b,3));
SELECT id FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +id;
EXPLAIN QUERY PLAN
SELECT id FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +id;
SELECT id FROM t1 WHERE +substr(a,b,3)<='and' ORDER BY +id;
SELECT id FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz')
ORDER BY +id;
EXPLAIN QUERY PLAN
SELECT id FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz')
ORDER BY +id;
ALTER TABLE t1 ADD COLUMN d;
UPDATE t1 SET d=length(a);
CREATE INDEX t1a2 ON t1(SUBSTR(a, 27, 3)) WHERE d>=29;
SELECT id, b, c FROM t1
WHERE substr(a,27,3)=='ord' AND d>=29;
EXPLAIN QUERY PLAN
SELECT id, b, c FROM t1
WHERE substr(a,27,3)=='ord' AND d>=29;
CREATE TABLE t3(a,b,c);
WITH RECURSIVE c(x) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<30)
INSERT INTO t3(a,b,c)
SELECT x, printf('ab%04xyz',x), random() FROM c;
CREATE UNIQUE INDEX t3abc ON t3(CAST(a AS text), b, substr(c,1,3));
SELECT a FROM t3 WHERE CAST(a AS text)<='10' ORDER BY +a;
PRAGMA integrity_check;
CREATE TABLE t5(a);
CREATE TABLE cnt(x);
WITH RECURSIVE
c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
INSERT INTO cnt(x) SELECT x FROM c;
INSERT INTO t5(a) SELECT printf('abc%03dxyz',x) FROM cnt;
CREATE INDEX t5ax ON t5( substr(a,4,3) );
-- The use of the "k" alias in the WHERE clause is technically
-- illegal, but SQLite allows it for historical reasons. In this
-- test and the next, verify that "k" can be used by the t5ax index
SELECT substr(a,4,3) AS k FROM cnt, t5 WHERE k=printf('%03d',x);
EXPLAIN QUERY PLAN
SELECT substr(a,4,3) AS k FROM cnt, t5 WHERE k=printf('%03d',x);
DROP TABLE IF EXISTS t4;
CREATE TABLE t4(a,b,c,d,e,f,g,h,i);
CREATE INDEX t4all ON t4(a,b,c<d,e,f,i,h);
INSERT INTO t4 VALUES(1,2,3,4,5,6,7,8,9);
ANALYZE;
DELETE FROM sqlite_stat1;
INSERT INTO sqlite_stat1
VALUES('t4','t4all','600000 160000 40000 10000 2000 600 100 40 10');
ANALYZE sqlite_master;
SELECT i FROM t4 WHERE e=5;
DROP TABLE IF EXISTS t7;
CREATE TABLE t7(a,b,c);
INSERT INTO t7(a,b,c) VALUES(1,2,2),('abc','def','def'),(4,5,6);
CREATE INDEX t7b ON t7(+b);
CREATE INDEX t7c ON t7(+c);
SELECT *, '|' FROM t7 WHERE +b=+c ORDER BY +a;
CREATE TABLE t71(a,b,c);
CREATE INDEX t71bc ON t71(b+c);
CREATE TABLE t72(x,y,z);
CREATE INDEX t72yz ON t72(y+z);
INSERT INTO t71(a,b,c) VALUES(1,11,2),(2,7,15),(3,5,4);
INSERT INTO t72(x,y,z) VALUES(1,10,3),(2,8,14),(3,9,9);
SELECT a, x, '|' FROM t71, t72
WHERE b+c=y+z
ORDER BY +a, +x;
DROP TABLE IF EXISTS t8;
CREATE TABLE t8(a INTEGER PRIMARY KEY, b TEXT);
CREATE UNIQUE INDEX t8bx ON t8(substr(b,2,4) COLLATE nocase);
INSERT INTO t8(a,b) VALUES(1,'Alice'),(2,'Bartholemew'),(3,'Cynthia');
SELECT * FROM t8 WHERE substr(b,2,4)='ARTH' COLLATE nocase;
CREATE TABLE t9(a,b,c,d);
CREATE UNIQUE INDEX t9x1 ON t9(c,abs(d),b);
INSERT INTO t9(rowid,a,b,c,d) VALUES(1,2,3,4,5);
INSERT INTO t9(rowid,a,b,c,d) VALUES(2,NULL,NULL,NULL,NULL);
INSERT INTO t9(rowid,a,b,c,d) VALUES(3,NULL,NULL,NULL,NULL);
INSERT INTO t9(rowid,a,b,c,d) VALUES(4,5,6,7,8);
PRAGMA integrity_check;
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(a,b,t);
CREATE INDEX i ON t0(a in(0,1));
INSERT INTO t0 VALUES(0,1,2),(2,3,4),(5,6,7);
UPDATE t0 SET b=99 WHERE (a in(0,1))=0;
SELECT *, '|' FROM t0 ORDER BY +a;
UPDATE t0 SET b=88 WHERE (a in(0,1))=1;
SELECT *, '|' FROM t0 ORDER BY +a;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a);
INSERT INTO t1 VALUES(NULL),(1);
SELECT '1:', typeof(a), a FROM t1 WHERE a<10;
SELECT '2:', typeof(a), a FROM t1 WHERE a+0<10;
CREATE INDEX t1x1 ON t1(a);
CREATE INDEX t1x2 ON t1(a+0);
SELECT '3:', typeof(a), a FROM t1 WHERE a<10;
SELECT '4:', typeof(a), a FROM t1 WHERE a+0<10;
CREATE TABLE t10(a int, b int, c int, d int);
INSERT INTO t10(a, b, c, d) VALUES(0, 0, 2, 2);
INSERT INTO t10(a, b, c, d) VALUES(0, 0, 0, 0);
INSERT INTO t10(a, b, c, d) VALUES(0, 0, 1, 1);
INSERT INTO t10(a, b, c, d) VALUES(1, 1, 1, 1);
INSERT INTO t10(a, b, c, d) VALUES(1, 1, 0, 0);
INSERT INTO t10(a, b, c, d) VALUES(2, 2, 0, 0);
SELECT a+b, c+d FROM t10 ORDER BY a+b, c+d;
CREATE INDEX t10_ab ON t10(a+b);
SELECT a+b, c+d FROM t10 ORDER BY a+b, c+d;
CREATE INDEX t10_abcd ON t10(a+b,c+d);
SELECT a+b, c+d FROM t10 ORDER BY a+b, c+d;
CREATE TABLE t1300(a INTEGER PRIMARY KEY, b);
INSERT INTO t1300 VALUES(1,'coffee'),(2,'COFFEE'),(3,'stress'),(4,'STRESS');
CREATE INDEX t1300bexpr ON t1300( substr(b,4) );
SELECT a FROM t1300 WHERE substr(b,4)='ess' COLLATE nocase ORDER BY +a;
CREATE TABLE t1400(x TEXT);
CREATE INDEX t1400x ON t1400(1); -- Index on a constant
SELECT 1 IN (SELECT 2) FROM t1400;
INSERT INTO t1400 VALUES('a'),('b');
SELECT 1 IN (SELECT 2) FROM t1400;
SELECT 1 IN (SELECT 2 UNION ALL SELECT 1) FROM t1400;
DROP INDEX t1400x;
CREATE INDEX t1400x ON t1400(abs(15+3));
SELECT abs(15+3) IN (SELECT 17 UNION ALL SELECT 18) FROM t1;
CREATE TABLE t1500(a INT PRIMARY KEY, b INT UNIQUE);
CREATE INDEX t1500ab ON t1500(a*b);
INSERT INTO t1500(a,b) VALUES(1,2);
REPLACE INTO t1500(a,b) VALUES(1,3); -- formerly caused assertion fault
SELECT * FROM t1500;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a PRIMARY KEY,b UNIQUE);
REPLACE INTO t1 VALUES(2, 1);
REPLACE INTO t1 SELECT 6,1;
CREATE INDEX t1aa ON t1(a-a);
REPLACE INTO t1 SELECT a, randomblob(a) FROM t1
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (a INTEGER, b);
CREATE INDEX idx1 ON t1 (lower(a));
INSERT INTO t1 VALUES('0001234',3);
PRAGMA integrity_check;
INSERT INTO t1 VALUES('1234',0),('001234',2),('01234',1);
SELECT b FROM t1 WHERE lower(a)='1234' ORDER BY +b;
SELECT b FROM t1 WHERE lower(a)='01234' ORDER BY +b;
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(c0);
INSERT INTO t0(c0) VALUES (0);
CREATE INDEX i0 ON t0(NULL > c0) WHERE (NULL NOT NULL);
SELECT * FROM t0 WHERE ((NULL IS FALSE) IS FALSE);
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(c0 REAL, c1 TEXT);
CREATE INDEX i0 ON t0(+c0, c0);
INSERT INTO t0(c0) VALUES(0);
SELECT CAST(+ t0.c0 AS BLOB) LIKE 0 FROM t0;
SELECT CAST(+ t0.c0 AS BLOB) LIKE '0.0' FROM t0;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(x REAL);
CREATE INDEX t1x ON t1(x, +x);
INSERT INTO t1(x) VALUES(2);
SELECT +x FROM t1 WHERE x=2;
CREATE TABLE t1(x TEXT PRIMARY KEY, y TEXT, z INT);
INSERT INTO t1(x,y,z) VALUES('alpha','ALPHA',1),('bravo','charlie',1);
CREATE INDEX i1 ON t1(+y COLLATE NOCASE);
SELECT * FROM t1;
DELETE FROM t1 INDEXED BY i1
WHERE x IS +y COLLATE NOCASE IN (SELECT z FROM t1)
RETURNING *;
SELECT * FROM t1;
CREATE TABLE t1(a INT, b TEXT);
INSERT INTO t1(a,b) VALUES
(10, '{"one":5,"two":6
EXPLAIN QUERY PLAN
SELECT sum(b->>'one') FROM t1 WHERE a=10; /* Query AA */
SELECT sum(b->>'one') FROM t1 WHERE a=10; /* Query AA */
EXPLAIN QUERY PLAN
SELECT sum(b->>'two') FROM t1 WHERE a=10; /* Query BB */
SELECT sum(b->>'two') FROM t1 WHERE a=10; /* Query BB */
DROP TABLE t1;
CREATE TABLE t1(a INT, b TEXT, c INT, d INT);
INSERT INTO t1(a,b,c,d) VALUES
(1, '{"x":1
SELECT a,
SUM(1) AS t1,
SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
SUM(c) AS t3,
SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
FROM t1;
explain query plan
SELECT a,
SUM(1) AS t1,
SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
SUM(c) AS t3,
SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
FROM t1;
CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT);
INSERT INTO t1(a,b) VALUES(1,0);
CREATE INDEX x1 ON t1( "y" );
CREATE INDEX x2 ON t1( +"y" );
CREATE INDEX x3 ON t1( +'y' );
CREATE INDEX x4 ON t1( "y*" );
UPDATE t1 SET b=100 WHERE (SELECT 'y') GLOB "y";
SELECT b FROM t1;
UPDATE t1 SET b=200 WHERE (SELECT 'y') GLOB +"y";
SELECT b FROM t1;
UPDATE t1 SET b=300 WHERE (SELECT 'y') GLOB +'y';
SELECT b FROM t1;
UPDATE t1 SET b=400 WHERE (SELECT 'y') GLOB "y*";
SELECT b FROM t1;
CREATE TABLE t1(id INTEGER PRIMARY KEY, tag INT);
INSERT INTO t1 VALUES (0, 7), (1, 8);
CREATE TABLE t2(type INT, t1_id INT, value INT);
INSERT INTO t2 VALUES (0, 0, 100), (0, 1, 101);
CREATE INDEX t1x ON t1(-tag);
SELECT u.tag, v.max_value
FROM (SELECT tag FROM t1 GROUP BY -tag) u
JOIN (SELECT t1.tag AS "tag", t2.type AS "type",
MAX(t2.value) AS "max_value"
FROM t1
JOIN t2 ON t2.t1_id = t1.id
GROUP BY t2.type, t1.tag
) v ON v.type = 0 AND v.tag = u.tag;