# 2015-08-31
#
# 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 file is testing indexes on expressions.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
do_execsql_test indexexpr1-100 {
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));
} {}
do_execsql_test indexexpr1-110 {
SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c;
} {1 2 | 1 3 |}
do_execsql_test indexexpr1-110eqp {
EXPLAIN QUERY PLAN
SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c;
} {/USING INDEX t1a1/}
do_execsql_test indexexpr1-120 {
SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c;
} {1 2 | 1 3 |}
do_execsql_test indexexpr1-120eqp {
EXPLAIN QUERY PLAN
SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c;
} {/USING INDEX t1a1/}
do_execsql_test indexexpr1-130 {
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;
} {2 3}
do_execsql_test indexexpr1-130eqp {
EXPLAIN QUERY PLAN
SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c;
} {/USING INDEX t1ba/}
do_execsql_test indexexpr1-140 {
SELECT rowid, substr(a,b,3), '|' FROM t1 ORDER BY 2;
} {1 In_ | 2 and | 3 and | 6 d_w | 4 he_ | 5 l_t |}
do_execsql_test indexexpr1-141 {
CREATE INDEX t1abx ON t1(substr(a,b,3));
SELECT rowid FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +rowid;
} {1 2 3}
do_execsql_test indexexpr1-141eqp {
EXPLAIN QUERY PLAN
SELECT rowid FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +rowid;
} {/USING INDEX t1abx/}
do_execsql_test indexexpr1-142 {
SELECT rowid FROM t1 WHERE +substr(a,b,3)<='and' ORDER BY +rowid;
} {1 2 3}
do_execsql_test indexexpr1-150 {
SELECT rowid FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz')
ORDER BY +rowid;
} {2 3 5}
do_execsql_test indexexpr1-150eqp {
EXPLAIN QUERY PLAN
SELECT rowid FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz')
ORDER BY +rowid;
} {/USING INDEX t1abx/}
do_execsql_test indexexpr1-160 {
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;
} {1 1 1}
do_execsql_test indexexpr1-160eqp {
EXPLAIN QUERY PLAN
SELECT rowid, b, c FROM t1
WHERE substr(a,27,3)=='ord' AND d>=29;
} {/USING INDEX t1a2/}
do_execsql_test indexexpr1-200 {
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));
} {}
do_execsql_test indexexpr1-210 {
SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c;
} {1 2 | 1 3 |}
do_execsql_test indexexpr1-210eqp {
EXPLAIN QUERY PLAN
SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c;
} {/USING INDEX t1a1/}
do_execsql_test indexexpr1-220 {
SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c;
} {1 2 | 1 3 |}
do_execsql_test indexexpr1-220eqp {
EXPLAIN QUERY PLAN
SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c;
} {/USING INDEX t1a1/}
do_execsql_test indexexpr1-230 {
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;
} {2 3}
do_execsql_test indexexpr1-230eqp {
EXPLAIN QUERY PLAN
SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c;
} {/USING INDEX t1ba/}
do_execsql_test indexexpr1-240 {
SELECT id, substr(a,b,3), '|' FROM t1 ORDER BY 2;
} {1 In_ | 2 and | 3 and | 6 d_w | 4 he_ | 5 l_t |}
do_execsql_test indexexpr1-241 {
CREATE INDEX t1abx ON t1(substr(a,b,3));
SELECT id FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +id;
} {1 2 3}
do_execsql_test indexexpr1-241eqp {
EXPLAIN QUERY PLAN
SELECT id FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +id;
} {/USING INDEX t1abx/}
do_execsql_test indexexpr1-242 {
SELECT id FROM t1 WHERE +substr(a,b,3)<='and' ORDER BY +id;
} {1 2 3}
do_execsql_test indexexpr1-250 {
SELECT id FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz')
ORDER BY +id;
} {2 3 5}
do_execsql_test indexexpr1-250eqp {
EXPLAIN QUERY PLAN
SELECT id FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz')
ORDER BY +id;
} {/USING INDEX t1abx/}
do_execsql_test indexexpr1-260 {
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;
} {1 1 1}
do_execsql_test indexexpr1-260eqp {
EXPLAIN QUERY PLAN
SELECT id, b, c FROM t1
WHERE substr(a,27,3)=='ord' AND d>=29;
} {/USING INDEX t1a2/}
do_catchsql_test indexexpr1-300 {
CREATE TABLE t2(a,b,c);
CREATE INDEX t2x1 ON t2(a,b+random());
} {1 {non-deterministic functions prohibited in index expressions}}
do_catchsql_test indexexpr1-301 {
CREATE INDEX t2x1 ON t2(a+julianday('now'));
} {1 {non-deterministic functions prohibited in index expressions}}
do_catchsql_test indexexpr1-310 {
CREATE INDEX t2x2 ON t2(a,b+(SELECT 15));
} {1 {subqueries prohibited in index expressions}}
do_catchsql_test indexexpr1-320 {
CREATE TABLE e1(x,y,UNIQUE(y,substr(x,1,5)));
} {1 {expressions prohibited in PRIMARY KEY and UNIQUE constraints}}
do_catchsql_test indexexpr1-330 {
CREATE TABLE e1(x,y,PRIMARY KEY(y,substr(x,1,5)));
} {1 {expressions prohibited in PRIMARY KEY and UNIQUE constraints}}
do_catchsql_test indexexpr1-331 {
CREATE TABLE e1(x,y,PRIMARY KEY(y,substr(x,1,5))) WITHOUT ROWID;
} {1 {expressions prohibited in PRIMARY KEY and UNIQUE constraints}}
do_catchsql_test indexexpr1-340 {
CREATE TABLE e1(x,y,FOREIGN KEY(substr(y,1,5)) REFERENCES t1);
} {1 {near "(": syntax error}}
do_execsql_test indexexpr1-400 {
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;
} {1 10}
do_catchsql_test indexexpr1-410 {
INSERT INTO t3 SELECT * FROM t3 WHERE rowid=10;
} {1 {UNIQUE constraint failed: index 't3abc'}}
do_execsql_test indexexpr1-500 {
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) );
} {}
do_execsql_test indexexpr1-510 {
-- 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);
} {001 002 003 004 005}
do_execsql_test indexexpr1-510eqp {
EXPLAIN QUERY PLAN
SELECT substr(a,4,3) AS k FROM cnt, t5 WHERE k=printf('%03d',x);
} {/USING INDEX t5ax/}
finish_test