# 2005 September 19 # # 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 left outer joins containing ON # clauses that restrict the scope of the left term of the join. # set testdir [file dirname $argv0] source $testdir/tester.tcl set testprefix join5 do_test join5-1.1 { execsql { BEGIN; CREATE TABLE t1(a integer primary key, b integer, c integer); CREATE TABLE t2(x integer primary key, y); CREATE TABLE t3(p integer primary key, q); INSERT INTO t3 VALUES(11,'t3-11'); INSERT INTO t3 VALUES(12,'t3-12'); INSERT INTO t2 VALUES(11,'t2-11'); INSERT INTO t2 VALUES(12,'t2-12'); INSERT INTO t1 VALUES(1, 5, 0); INSERT INTO t1 VALUES(2, 11, 2); INSERT INTO t1 VALUES(3, 12, 1); COMMIT; } } {} do_test join5-1.2 { execsql { select * from t1 left join t2 on t1.b=t2.x and t1.c=1 } } {1 5 0 {} {} 2 11 2 {} {} 3 12 1 12 t2-12} do_test join5-1.3 { execsql { select * from t1 left join t2 on t1.b=t2.x where t1.c=1 } } {3 12 1 12 t2-12} do_test join5-1.4 { execsql { select * from t1 left join t2 on t1.b=t2.x and t1.c=1 left join t3 on t1.b=t3.p and t1.c=2 } } {1 5 0 {} {} {} {} 2 11 2 {} {} 11 t3-11 3 12 1 12 t2-12 {} {}} do_test join5-1.5 { execsql { select * from t1 left join t2 on t1.b=t2.x and t1.c=1 left join t3 on t1.b=t3.p where t1.c=2 } } {2 11 2 {} {} 11 t3-11} # Ticket #2403 # do_test join5-2.1 { execsql { CREATE TABLE ab(a,b); INSERT INTO "ab" VALUES(1,2); INSERT INTO "ab" VALUES(3,NULL); CREATE TABLE xy(x,y); INSERT INTO "xy" VALUES(2,3); INSERT INTO "xy" VALUES(NULL,1); } execsql {SELECT * FROM xy LEFT JOIN ab ON 0} } {2 3 {} {} {} 1 {} {}} do_test join5-2.2 { execsql {SELECT * FROM xy LEFT JOIN ab ON 1} } {2 3 1 2 2 3 3 {} {} 1 1 2 {} 1 3 {}} do_test join5-2.3 { execsql {SELECT * FROM xy LEFT JOIN ab ON NULL} } {2 3 {} {} {} 1 {} {}} do_test join5-2.4 { execsql {SELECT * FROM xy LEFT JOIN ab ON 0 WHERE 0} } {} do_test join5-2.5 { execsql {SELECT * FROM xy LEFT JOIN ab ON 1 WHERE 0} } {} do_test join5-2.6 { execsql {SELECT * FROM xy LEFT JOIN ab ON NULL WHERE 0} } {} do_test join5-2.7 { execsql {SELECT * FROM xy LEFT JOIN ab ON 0 WHERE 1} } {2 3 {} {} {} 1 {} {}} do_test join5-2.8 { execsql {SELECT * FROM xy LEFT JOIN ab ON 1 WHERE 1} } {2 3 1 2 2 3 3 {} {} 1 1 2 {} 1 3 {}} do_test join5-2.9 { execsql {SELECT * FROM xy LEFT JOIN ab ON NULL WHERE 1} } {2 3 {} {} {} 1 {} {}} do_test join5-2.10 { execsql {SELECT * FROM xy LEFT JOIN ab ON 0 WHERE NULL} } {} do_test join5-2.11 { execsql {SELECT * FROM xy LEFT JOIN ab ON 1 WHERE NULL} } {} do_test join5-2.12 { execsql {SELECT * FROM xy LEFT JOIN ab ON NULL WHERE NULL} } {} # Ticket https://www.sqlite.org/src/tktview/6f2222d550f5b0ee7ed37601 # Incorrect output on a LEFT JOIN. # do_execsql_test join5-3.1 { DROP TABLE IF EXISTS t1; DROP TABLE IF EXISTS t2; DROP TABLE IF EXISTS t3; CREATE TABLE x1(a); INSERT INTO x1 VALUES(1); CREATE TABLE x2(b NOT NULL); CREATE TABLE x3(c, d); INSERT INTO x3 VALUES('a', NULL); INSERT INTO x3 VALUES('b', NULL); INSERT INTO x3 VALUES('c', NULL); SELECT * FROM x1 LEFT JOIN x2 LEFT JOIN x3 ON x3.d = x2.b; } {1 {} {} {}} do_execsql_test join5-3.2 { DROP TABLE IF EXISTS t1; DROP TABLE IF EXISTS t2; DROP TABLE IF EXISTS t3; DROP TABLE IF EXISTS t4; DROP TABLE IF EXISTS t5; CREATE TABLE t1(x text NOT NULL, y text); CREATE TABLE t2(u text NOT NULL, x text NOT NULL); CREATE TABLE t3(w text NOT NULL, v text); CREATE TABLE t4(w text NOT NULL, z text NOT NULL); CREATE TABLE t5(z text NOT NULL, m text); INSERT INTO t1 VALUES('f6d7661f-4efe-4c90-87b5-858e61cd178b',NULL); INSERT INTO t1 VALUES('f6ea82c3-2cad-45ce-ae8f-3ddca4fb2f48',NULL); INSERT INTO t1 VALUES('f6f47499-ecb4-474b-9a02-35be73c235e5',NULL); INSERT INTO t1 VALUES('56f47499-ecb4-474b-9a02-35be73c235e5',NULL); INSERT INTO t3 VALUES('007f2033-cb20-494c-b135-a1e4eb66130c', 'f6d7661f-4efe-4c90-87b5-858e61cd178b'); SELECT * FROM t3 INNER JOIN t1 ON t1.x= t3.v AND t1.y IS NULL LEFT JOIN t4 ON t4.w = t3.w LEFT JOIN t5 ON t5.z = t4.z LEFT JOIN t2 ON t2.u = t5.m LEFT JOIN t1 xyz ON xyz.y = t2.x; } {007f2033-cb20-494c-b135-a1e4eb66130c f6d7661f-4efe-4c90-87b5-858e61cd178b f6d7661f-4efe-4c90-87b5-858e61cd178b {} {} {} {} {} {} {} {} {}} do_execsql_test join5-3.3 { DROP TABLE IF EXISTS x1; DROP TABLE IF EXISTS x2; DROP TABLE IF EXISTS x3; CREATE TABLE x1(a); INSERT INTO x1 VALUES(1); CREATE TABLE x2(b NOT NULL); CREATE TABLE x3(c, d); INSERT INTO x3 VALUES('a', NULL); INSERT INTO x3 VALUES('b', NULL); INSERT INTO x3 VALUES('c', NULL); SELECT * FROM x1 LEFT JOIN x2 JOIN x3 WHERE x3.d = x2.b; } {} # Ticket https://www.sqlite.org/src/tktview/c2a19d81652f40568c770c43 on # 2015-08-20. LEFT JOIN and the push-down optimization. # do_execsql_test join6-4.1 { SELECT * FROM ( SELECT 'apple' fruit UNION ALL SELECT 'banana' ) a JOIN ( SELECT 'apple' fruit UNION ALL SELECT 'banana' ) b ON a.fruit=b.fruit LEFT JOIN ( SELECT 1 isyellow ) c ON b.fruit='banana'; } {apple apple {} banana banana 1} do_execsql_test join6-4.2 { SELECT * FROM (SELECT 'apple' fruit UNION ALL SELECT 'banana') LEFT JOIN (SELECT 1) ON fruit='banana'; } {apple {} banana 1} #------------------------------------------------------------------------- do_execsql_test 5.0 { CREATE TABLE y1(x, y, z); INSERT INTO y1 VALUES(0, 0, 1); CREATE TABLE y2(a); } do_execsql_test 5.1 { SELECT count(z) FROM y1 LEFT JOIN y2 ON x GROUP BY y; } 1 do_execsql_test 5.2 { SELECT count(z) FROM ( SELECT * FROM y1 ) LEFT JOIN y2 ON x GROUP BY y; } 1 do_execsql_test 5.3 { CREATE VIEW v1 AS SELECT x, y, z FROM y1; SELECT count(z) FROM v1 LEFT JOIN y2 ON x GROUP BY y; } 1 do_execsql_test 5.4 { SELECT count(z) FROM ( SELECT * FROM y1 ) LEFT JOIN y2 ON x } 1 do_execsql_test 5.5 { SELECT * FROM ( SELECT * FROM y1 ) LEFT JOIN y2 ON x } {0 0 1 {}} finish_test