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# 2002 May 24
#
# 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.
#
# This file implements tests for joins, including outer joins.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix join2
do_test join2-1.1 {
execsql {
CREATE TABLE t1(a,b);
INSERT INTO t1 VALUES(1,11);
INSERT INTO t1 VALUES(2,22);
INSERT INTO t1 VALUES(3,33);
SELECT * FROM t1;
}
} {1 11 2 22 3 33}
do_test join2-1.2 {
execsql {
CREATE TABLE t2(b,c);
INSERT INTO t2 VALUES(11,111);
INSERT INTO t2 VALUES(33,333);
INSERT INTO t2 VALUES(44,444);
SELECT * FROM t2;
}
} {11 111 33 333 44 444};
do_test join2-1.3 {
execsql {
CREATE TABLE t3(c,d);
INSERT INTO t3 VALUES(111,1111);
INSERT INTO t3 VALUES(444,4444);
INSERT INTO t3 VALUES(555,5555);
SELECT * FROM t3;
}
} {111 1111 444 4444 555 5555}
do_test join2-1.4 {
execsql {
SELECT * FROM
t1 NATURAL JOIN t2 NATURAL JOIN t3
}
} {1 11 111 1111}
do_test join2-1.5 {
execsql {
SELECT * FROM
t1 NATURAL JOIN t2 NATURAL LEFT OUTER JOIN t3
}
} {1 11 111 1111 3 33 333 {}}
do_test join2-1.6 {
execsql {
SELECT * FROM
t1 NATURAL LEFT OUTER JOIN t2 NATURAL JOIN t3
}
} {1 11 111 1111}
ifcapable subquery {
do_test join2-1.7 {
execsql {
SELECT * FROM
t1 NATURAL LEFT OUTER JOIN (t2 NATURAL JOIN t3)
}
} {1 11 111 1111 2 22 {} {} 3 33 {} {}}
}
#-------------------------------------------------------------------------
# Check that ticket [25e335f802ddc] has been resolved. It should be an
# error for the ON clause of a LEFT JOIN to refer to a table to its right.
#
do_execsql_test 2.0 {
CREATE TABLE aa(a);
CREATE TABLE bb(b);
CREATE TABLE cc(c);
INSERT INTO aa VALUES('one');
INSERT INTO bb VALUES('one');
INSERT INTO cc VALUES('one');
}
do_catchsql_test 2.1 {
SELECT * FROM aa LEFT JOIN cc ON (a=b) JOIN bb ON (b=coalesce(c,1));
} {1 {ON clause references tables to its right}}
do_catchsql_test 2.2 {
SELECT * FROM aa JOIN cc ON (a=b) JOIN bb ON (b=c);
} {0 {one one one}}
#-------------------------------------------------------------------------
# Test that a problem causing where.c to overlook opportunities to
# omit unnecessary tables from a LEFT JOIN when UNIQUE, NOT NULL column
# that makes this possible happens to be the leftmost in its table.
#
reset_db
do_execsql_test 3.0 {
CREATE TABLE t1(k1 INTEGER PRIMARY KEY, k2, k3);
CREATE TABLE t2(k2 INTEGER PRIMARY KEY, v2);
-- Prior to this problem being fixed, table t3_2 would be omitted from
-- the join queries below, but if t3_1 were used in its place it would
-- not.
CREATE TABLE t3_1(k3 PRIMARY KEY, v3) WITHOUT ROWID;
CREATE TABLE t3_2(v3, k3 PRIMARY KEY) WITHOUT ROWID;
}
do_eqp_test 3.1 {
SELECT v2 FROM t1 LEFT JOIN t2 USING (k2) LEFT JOIN t3_1 USING (k3);
} {
QUERY PLAN
|--SCAN t1
`--SEARCH t2 USING INTEGER PRIMARY KEY (rowid=?)
}
do_eqp_test 3.2 {
SELECT v2 FROM t1 LEFT JOIN t2 USING (k2) LEFT JOIN t3_2 USING (k3);
} {
QUERY PLAN
|--SCAN t1
`--SEARCH t2 USING INTEGER PRIMARY KEY (rowid=?)
}
#-------------------------------------------------------------------------
# Test that tables other than the rightmost can be omitted from a
# LEFT JOIN query.
#
do_execsql_test 4.0 {
CREATE TABLE c1(k INTEGER PRIMARY KEY, v1);
CREATE TABLE c2(k INTEGER PRIMARY KEY, v2);
CREATE TABLE c3(k INTEGER PRIMARY KEY, v3);
INSERT INTO c1 VALUES(1, 2);
INSERT INTO c2 VALUES(2, 3);
INSERT INTO c3 VALUES(3, 'v3');
INSERT INTO c1 VALUES(111, 1112);
INSERT INTO c2 VALUES(112, 1113);
INSERT INTO c3 VALUES(113, 'v1113');
}
do_execsql_test 4.1.1 {
SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v2);
} {2 v3 1112 {}}
do_execsql_test 4.1.2 {
SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v1+1);
} {2 v3 1112 {}}
do_execsql_test 4.1.3 {
SELECT DISTINCT v1, v3 FROM c1 LEFT JOIN c2 LEFT JOIN c3 ON (c3.k=v1+1);
} {2 v3 1112 {}}
do_execsql_test 4.1.4 {
SELECT v1, v3 FROM c1 LEFT JOIN c2 LEFT JOIN c3 ON (c3.k=v1+1);
} {2 v3 2 v3 1112 {} 1112 {}}
do_eqp_test 4.1.5 {
SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v2);
} {
QUERY PLAN
|--SCAN c1
|--SEARCH c2 USING INTEGER PRIMARY KEY (rowid=?)
`--SEARCH c3 USING INTEGER PRIMARY KEY (rowid=?)
}
do_eqp_test 4.1.6 {
SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v1+1);
} {
QUERY PLAN
|--SCAN c1
`--SEARCH c3 USING INTEGER PRIMARY KEY (rowid=?)
}
do_execsql_test 4.2.0 {
DROP TABLE c1;
DROP TABLE c2;
DROP TABLE c3;
CREATE TABLE c1(k UNIQUE, v1);
CREATE TABLE c2(k UNIQUE, v2);
CREATE TABLE c3(k UNIQUE, v3);
INSERT INTO c1 VALUES(1, 2);
INSERT INTO c2 VALUES(2, 3);
INSERT INTO c3 VALUES(3, 'v3');
INSERT INTO c1 VALUES(111, 1112);
INSERT INTO c2 VALUES(112, 1113);
INSERT INTO c3 VALUES(113, 'v1113');
}
do_execsql_test 4.2.1 {
SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v2);
} {2 v3 1112 {}}
do_execsql_test 4.2.2 {
SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v1+1);
} {2 v3 1112 {}}
do_execsql_test 4.2.3 {
SELECT DISTINCT v1, v3 FROM c1 LEFT JOIN c2 LEFT JOIN c3 ON (c3.k=v1+1);
} {2 v3 1112 {}}
do_execsql_test 4.2.4 {
SELECT v1, v3 FROM c1 LEFT JOIN c2 LEFT JOIN c3 ON (c3.k=v1+1);
} {2 v3 2 v3 1112 {} 1112 {}}
do_eqp_test 4.2.5 {
SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v2);
} {
QUERY PLAN
|--SCAN c1
|--SEARCH c2 USING INDEX sqlite_autoindex_c2_1 (k=?)
`--SEARCH c3 USING INDEX sqlite_autoindex_c3_1 (k=?)
}
do_eqp_test 4.2.6 {
SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v1+1);
} {
QUERY PLAN
|--SCAN c1
`--SEARCH c3 USING INDEX sqlite_autoindex_c3_1 (k=?)
}
# 2017-11-23 (Thanksgiving day)
# OSSFuzz found an assertion fault in the new LEFT JOIN eliminator code.
#
do_execsql_test 4.3.0 {
DROP TABLE IF EXISTS t1;
DROP TABLE IF EXISTS t2;
CREATE TABLE t1(x PRIMARY KEY) WITHOUT ROWID;
CREATE TABLE t2(x);
SELECT a.x
FROM t1 AS a
LEFT JOIN t1 AS b ON (a.x=b.x)
LEFT JOIN t2 AS c ON (a.x=c.x);
} {}
do_execsql_test 4.3.1 {
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<10)
INSERT INTO t1(x) SELECT x FROM c;
INSERT INTO t2(x) SELECT x+9 FROM t1;
SELECT a.x, c.x
FROM t1 AS a
LEFT JOIN t1 AS b ON (a.x=b.x)
LEFT JOIN t2 AS c ON (a.x=c.x);
} {1 {} 2 {} 3 {} 4 {} 5 {} 6 {} 7 {} 8 {} 9 {} 10 10}
do_execsql_test 5.0 {
CREATE TABLE s1 (a INTEGER PRIMARY KEY);
CREATE TABLE s2 (a INTEGER PRIMARY KEY);
CREATE TABLE s3 (a INTEGER);
CREATE UNIQUE INDEX ndx on s3(a);
}
do_eqp_test 5.1 {
SELECT s1.a FROM s1 left join s2 using (a);
} {SCAN s1}
do_eqp_test 5.2 {
SELECT s1.a FROM s1 left join s3 using (a);
} {SCAN s1}
do_execsql_test 6.0 {
CREATE TABLE u1(a INTEGER PRIMARY KEY, b, c);
CREATE TABLE u2(a INTEGER PRIMARY KEY, b, c);
CREATE INDEX u1ab ON u1(b, c);
}
do_eqp_test 6.1 {
SELECT u2.* FROM u2 LEFT JOIN u1 ON( u1.a=u2.a AND u1.b=u2.b AND u1.c=u2.c );
} {SCAN u2}
db close
sqlite3 db :memory:
do_execsql_test 7.0 {
CREATE TABLE t1(a,b); INSERT INTO t1 VALUES(1,2),(3,4),(5,6);
CREATE TABLE t2(c,d); INSERT INTO t2 VALUES(2,4),(3,6);
CREATE TABLE t3(x); INSERT INTO t3 VALUES(9);
CREATE VIEW test AS
SELECT *, 'x'
FROM t1 LEFT JOIN (SELECT * FROM t2, t3) ON (c=b AND x=9)
WHERE c IS NULL;
SELECT * FROM test;
} {3 4 {} {} {} x 5 6 {} {} {} x}
#-------------------------------------------------------------------------
# Ticket [dfd66334].
#
reset_db
do_execsql_test 8.0 {
CREATE TABLE t0(c0);
CREATE TABLE t1(c0);
}
do_execsql_test 8.1 {
SELECT * FROM t0 LEFT JOIN t1
WHERE (t1.c0 BETWEEN 0 AND 0) > ('' AND t0.c0);
}
#-------------------------------------------------------------------------
# Ticket [45f4bf4eb] reported by Manuel Rigger (2020-04-25)
#
# Follow up error reported by Eric Speckman on the SQLite forum
# https://sqlite.org/forum/info/c49496d24d35bd7c (2020-08-19)
#
reset_db
do_execsql_test 9.0 {
CREATE TABLE t0(c0 INT);
CREATE VIEW v0(c0) AS SELECT CAST(t0.c0 AS INTEGER) FROM t0;
INSERT INTO t0(c0) VALUES (0);
}
do_execsql_test 9.1 {
SELECT typeof(c0), c0 FROM v0 WHERE c0>='0'
} {integer 0}
do_execsql_test 9.2 {
SELECT * FROM t0, v0 WHERE v0.c0 >= '0';
} {0 0}
do_execsql_test 9.3 {
SELECT * FROM t0 LEFT JOIN v0 WHERE v0.c0 >= '0';
} {0 0}
do_execsql_test 9.4 {
SELECT * FROM t0 LEFT JOIN v0 ON v0.c0 >= '0';
} {0 0}
do_execsql_test 9.5 {
SELECT * FROM t0 LEFT JOIN v0 ON v0.c0 >= '0' WHERE TRUE
UNION SELECT 0,0 WHERE 0;
} {0 0}
do_execsql_test 9.10 {
CREATE TABLE t1 (aaa);
INSERT INTO t1 VALUES(23456);
CREATE TABLE t2(bbb);
CREATE VIEW v2(ccc) AS SELECT bbb IS 1234 FROM t2;
SELECT ccc, ccc IS NULL AS ddd FROM t1 LEFT JOIN v2;
} {{} 1}
optimization_control db query-flattener 0
do_execsql_test 9.11 {
SELECT ccc, ccc IS NULL AS ddd FROM t1 LEFT JOIN v2;
} {{} 1}
finish_test
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