# 2015-03-06
#
# 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 the LIKE and GLOB operators and
# in particular the optimizations that occur to help those operators
# run faster and that those optimizations work correctly when there
# are both strings and blobs being tested.
#
# Ticket 05f43be8fdda9fbd948d374319b99b054140bc36 shows that the following
# SQL was not working correctly:
#
# CREATE TABLE t1(x TEXT UNIQUE COLLATE nocase);
# INSERT INTO t1(x) VALUES(x'616263');
# SELECT 'query-1', x FROM t1 WHERE x LIKE 'a%';
# SELECT 'query-2', x FROM t1 WHERE +x LIKE 'a%';
#
# This script verifies that it works right now.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
ifcapable !like_match_blobs {
finish_test
return
}
do_execsql_test like3-1.1 {
PRAGMA encoding=UTF8;
CREATE TABLE t1(a,b TEXT COLLATE nocase);
INSERT INTO t1(a,b)
VALUES(1,'abc'),
(2,'ABX'),
(3,'BCD'),
(4,x'616263'),
(5,x'414258'),
(6,x'424344');
CREATE INDEX t1ba ON t1(b,a);
SELECT a, b FROM t1 WHERE b LIKE 'aB%' ORDER BY +a;
} {1 abc 2 ABX 4 abc 5 ABX}
do_execsql_test like3-1.2 {
SELECT a, b FROM t1 WHERE +b LIKE 'aB%' ORDER BY +a;
} {1 abc 2 ABX 4 abc 5 ABX}
do_execsql_test like3-2.0 {
CREATE TABLE t2(a, b TEXT);
INSERT INTO t2 SELECT a, b FROM t1;
CREATE INDEX t2ba ON t2(b,a);
SELECT a, b FROM t2 WHERE b GLOB 'ab*' ORDER BY +a;
} {1 abc 4 abc}
do_execsql_test like3-2.1 {
SELECT a, b FROM t2 WHERE +b GLOB 'ab*' ORDER BY +a;
} {1 abc 4 abc}
do_execsql_test like3-2.2 {
SELECT a, b FROM t2 WHERE b>=x'6162' AND b GLOB 'ab*'
} {4 abc}
do_execsql_test like3-2.3 {
SELECT a, b FROM t2 WHERE +b>=x'6162' AND +b GLOB 'ab*'
} {4 abc}
do_execsql_test like3-2.4 {
SELECT a, b FROM t2 WHERE b GLOB 'ab*' AND b>=x'6162'
} {4 abc}
do_execsql_test like3-2.5 {
SELECT a, b FROM t2 WHERE +b GLOB 'ab*' AND +b>=x'6162'
} {4 abc}
do_execsql_test like3-3.0 {
CREATE TABLE t3(x TEXT PRIMARY KEY COLLATE nocase);
INSERT INTO t3(x) VALUES('aaa'),('abc'),('abd'),('abe'),('acz');
INSERT INTO t3(x) SELECT CAST(x AS blob) FROM t3;
SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY x;
} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
do_execsql_test like3-3.1 {
SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY x DESC;
} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
do_execsql_test like3-3.1ck {
SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY +x DESC;
} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
do_execsql_test like3-3.2 {
SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY x ASC;
} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
do_execsql_test like3-3.2ck {
SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY +x ASC;
} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
do_execsql_test like3-4.0 {
CREATE TABLE t4(x TEXT COLLATE nocase);
CREATE INDEX t4x ON t4(x DESC);
INSERT INTO t4(x) SELECT x FROM t3;
SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY x;
} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
do_execsql_test like3-4.1 {
SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY x DESC;
} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
do_execsql_test like3-4.1ck {
SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY +x DESC;
} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
do_execsql_test like3-4.2 {
SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY x ASC;
} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
do_execsql_test like3-4.2ck {
SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY +x ASC;
} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
# 2018-09-10 ticket https://www.sqlite.org/src/tktview/c94369cae9b561b1f996
# The like optimization fails for a column with numeric affinity if
# the pattern '/%' or begins with the escape character.
#
do_execsql_test like3-5.100 {
CREATE TABLE t5a(x INT UNIQUE COLLATE nocase);
INSERT INTO t5a(x) VALUES('/abc'),(123),(-234);
SELECT x FROM t5a WHERE x LIKE '/%';
} {/abc}
do_eqp_test like3-5.101 {
SELECT x FROM t5a WHERE x LIKE '/%';
} {
QUERY PLAN
`--SCAN TABLE t5a
}
do_execsql_test like3-5.110 {
SELECT x FROM t5a WHERE x LIKE '/a%';
} {/abc}
ifcapable !icu {
do_eqp_test like3-5.111 {
SELECT x FROM t5a WHERE x LIKE '/a%';
} {
QUERY PLAN
`--SEARCH TABLE t5a USING COVERING INDEX sqlite_autoindex_t5a_1 (x>? AND x<?)
}
}
do_execsql_test like3-5.120 {
SELECT x FROM t5a WHERE x LIKE '^12%' ESCAPE '^';
} {123}
do_eqp_test like3-5.121 {
SELECT x FROM t5a WHERE x LIKE '^12%' ESCAPE '^';
} {
QUERY PLAN
`--SCAN TABLE t5a
}
do_execsql_test like3-5.122 {
SELECT x FROM t5a WHERE x LIKE '^-2%' ESCAPE '^';
} {-234}
do_eqp_test like3-5.123 {
SELECT x FROM t5a WHERE x LIKE '^12%' ESCAPE '^';
} {
QUERY PLAN
`--SCAN TABLE t5a
}
do_execsql_test like3-5.200 {
CREATE TABLE t5b(x INT UNIQUE COLLATE binary);
INSERT INTO t5b(x) VALUES('/abc'),(123),(-234);
SELECT x FROM t5b WHERE x GLOB '/*';
} {/abc}
do_eqp_test like3-5.201 {
SELECT x FROM t5b WHERE x GLOB '/*';
} {
QUERY PLAN
`--SCAN TABLE t5b
}
do_execsql_test like3-5.210 {
SELECT x FROM t5b WHERE x GLOB '/a*';
} {/abc}
do_eqp_test like3-5.211 {
SELECT x FROM t5b WHERE x GLOB '/a*';
} {
QUERY PLAN
`--SEARCH TABLE t5b USING COVERING INDEX sqlite_autoindex_t5b_1 (x>? AND x<?)
}
# 2019-05-01
# another case of the above reported on the mailing list by Manual Rigger.
#
do_execsql_test like3-5.300 {
CREATE TABLE t5c (c0 REAL);
CREATE INDEX t5c_0 ON t5c(c0 COLLATE NOCASE);
INSERT INTO t5c(rowid, c0) VALUES (99,'+/');
SELECT * FROM t5c WHERE (c0 LIKE '+/');
} {+/}
# 2019-02-27
# Verify that the LIKE optimization works with an ESCAPE clause when
# using PRAGMA case_sensitive_like=ON.
#
ifcapable !icu {
do_execsql_test like3-6.100 {
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(path TEXT COLLATE nocase PRIMARY KEY,a,b,c) WITHOUT ROWID;
}
do_eqp_test like3-6.110 {
SELECT * FROM t1 WHERE path LIKE 'a%';
} {
QUERY PLAN
`--SEARCH TABLE t1 USING PRIMARY KEY (path>? AND path<?)
}
do_eqp_test like3-6.120 {
SELECT * FROM t1 WHERE path LIKE 'a%' ESCAPE '_';
} {
QUERY PLAN
`--SEARCH TABLE t1 USING PRIMARY KEY (path>? AND path<?)
}
do_execsql_test like3-6.200 {
DROP TABLE IF EXISTS t2;
CREATE TABLE t2(path TEXT,x,y,z);
CREATE INDEX t2path ON t2(path COLLATE nocase);
CREATE INDEX t2path2 ON t2(path);
}
do_eqp_test like3-6.210 {
SELECT * FROM t2 WHERE path LIKE 'a%';
} {
QUERY PLAN
`--SEARCH TABLE t2 USING INDEX t2path (path>? AND path<?)
}
do_eqp_test like3-6.220 {
SELECT * FROM t2 WHERE path LIKE 'a%' ESCAPE '_';
} {
QUERY PLAN
`--SEARCH TABLE t2 USING INDEX t2path (path>? AND path<?)
}
db eval {PRAGMA case_sensitive_like=ON}
do_eqp_test like3-6.230 {
SELECT * FROM t2 WHERE path LIKE 'a%';
} {
QUERY PLAN
`--SEARCH TABLE t2 USING INDEX t2path2 (path>? AND path<?)
}
do_eqp_test like3-6.240 {
SELECT * FROM t2 WHERE path LIKE 'a%' ESCAPE '_';
} {
QUERY PLAN
`--SEARCH TABLE t2 USING INDEX t2path2 (path>? AND path<?)
}
}
finish_test