# # 2002 February 26 # # 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 VIEW statements. # # $Id: view.test,v 1.16.2.1 2004/07/20 00:20:47 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl do_test view-1.0 { execsql { CREATE TABLE t1(a,b,c); INSERT INTO t1 VALUES(1,2,3); INSERT INTO t1 VALUES(4,5,6); INSERT INTO t1 VALUES(7,8,9); SELECT * FROM t1; } } {1 2 3 4 5 6 7 8 9} do_test view-1.1 { execsql { BEGIN; CREATE VIEW v1 AS SELECT a,b FROM t1; SELECT * FROM v1 ORDER BY a; } } {1 2 4 5 7 8} do_test view-1.2 { catchsql { ROLLBACK; SELECT * FROM v1 ORDER BY a; } } {1 {no such table: v1}} do_test view-1.3 { execsql { CREATE VIEW v1 AS SELECT a,b FROM t1; SELECT * FROM v1 ORDER BY a; } } {1 2 4 5 7 8} do_test view-1.3.1 { db close sqlite db test.db execsql { SELECT * FROM v1 ORDER BY a; } } {1 2 4 5 7 8} do_test view-1.4 { catchsql { DROP VIEW v1; SELECT * FROM v1 ORDER BY a; } } {1 {no such table: v1}} do_test view-1.5 { execsql { CREATE VIEW v1 AS SELECT a,b FROM t1; SELECT * FROM v1 ORDER BY a; } } {1 2 4 5 7 8} do_test view-1.6 { catchsql { DROP TABLE t1; SELECT * FROM v1 ORDER BY a; } } {1 {no such table: main.t1}} do_test view-1.7 { execsql { CREATE TABLE t1(x,a,b,c); INSERT INTO t1 VALUES(1,2,3,4); INSERT INTO t1 VALUES(4,5,6,7); INSERT INTO t1 VALUES(7,8,9,10); SELECT * FROM v1 ORDER BY a; } } {2 3 5 6 8 9} do_test view-1.8 { db close sqlite db test.db execsql { SELECT * FROM v1 ORDER BY a; } } {2 3 5 6 8 9} do_test view-2.1 { execsql { CREATE VIEW v2 AS SELECT * FROM t1 WHERE a>5 }; # No semicolon execsql2 { SELECT * FROM v2; } } {x 7 a 8 b 9 c 10} do_test view-2.2 { catchsql { INSERT INTO v2 VALUES(1,2,3,4); } } {1 {cannot modify v2 because it is a view}} do_test view-2.3 { catchsql { UPDATE v2 SET a=10 WHERE a=5; } } {1 {cannot modify v2 because it is a view}} do_test view-2.4 { catchsql { DELETE FROM v2; } } {1 {cannot modify v2 because it is a view}} do_test view-2.5 { execsql { INSERT INTO t1 VALUES(11,12,13,14); SELECT * FROM v2 ORDER BY x; } } {7 8 9 10 11 12 13 14} do_test view-2.6 { execsql { SELECT x FROM v2 WHERE a>10 } } {11} # Test that column name of views are generated correctly. # do_test view-3.1 { execsql2 { SELECT * FROM v1 LIMIT 1 } } {a 2 b 3} do_test view-3.2 { execsql2 { SELECT * FROM v2 LIMIT 1 } } {x 7 a 8 b 9 c 10} do_test view-3.3 { execsql2 { DROP VIEW v1; CREATE VIEW v1 AS SELECT a AS 'xyz', b+c AS 'pqr', c-b FROM t1; SELECT * FROM v1 LIMIT 1 } } {xyz 2 pqr 7 c-b 1} do_test view-3.4 { execsql2 { CREATE VIEW v3 AS SELECT a FROM t1 UNION SELECT b FROM t1 ORDER BY b; SELECT * FROM v3 LIMIT 4; } } {b 2 b 3 b 5 b 6} do_test view-3.5 { execsql2 { CREATE VIEW v4 AS SELECT a, b FROM t1 UNION SELECT b AS 'x', a AS 'y' FROM t1 ORDER BY x, y; SELECT y FROM v4 ORDER BY y LIMIT 4; } } {y 2 y 3 y 5 y 6} do_test view-4.1 { catchsql { DROP VIEW t1; } } {1 {use DROP TABLE to delete table t1}} do_test view-4.2 { execsql { SELECT 1 FROM t1 LIMIT 1; } } 1 do_test view-4.3 { catchsql { DROP TABLE v1; } } {1 {use DROP VIEW to delete view v1}} do_test view-4.4 { execsql { SELECT 1 FROM v1 LIMIT 1; } } {1} do_test view-4.5 { catchsql { CREATE INDEX i1v1 ON v1(xyz); } } {1 {views may not be indexed}} do_test view-5.1 { execsql { CREATE TABLE t2(y,a); INSERT INTO t2 VALUES(22,2); INSERT INTO t2 VALUES(33,3); INSERT INTO t2 VALUES(44,4); INSERT INTO t2 VALUES(55,5); SELECT * FROM t2; } } {22 2 33 3 44 4 55 5} do_test view-5.2 { execsql { CREATE VIEW v5 AS SELECT t1.x AS v, t2.y AS w FROM t1 JOIN t2 USING(a); SELECT * FROM v5; } } {1 22 4 55} # Verify that the view v5 gets flattened. see sqliteFlattenSubquery(). # Ticket #272 do_test view-5.3 { lsearch [execsql { EXPLAIN SELECT * FROM v5; }] OpenTemp } {-1} do_test view-5.4 { execsql { SELECT * FROM v5 AS a, t2 AS b WHERE a.w=b.y; } } {1 22 22 2 4 55 55 5} do_test view-5.5 { lsearch [execsql { EXPLAIN SELECT * FROM v5 AS a, t2 AS b WHERE a.w=b.y; }] OpenTemp } {-1} do_test view-5.6 { execsql { SELECT * FROM t2 AS b, v5 AS a WHERE a.w=b.y; } } {22 2 1 22 55 5 4 55} do_test view-5.7 { lsearch [execsql { EXPLAIN SELECT * FROM t2 AS b, v5 AS a WHERE a.w=b.y; }] OpenTemp } {-1} do_test view-5.8 { execsql { SELECT * FROM t1 AS a, v5 AS b, t2 AS c WHERE a.x=b.v AND b.w=c.y; } } {1 2 3 4 1 22 22 2 4 5 6 7 4 55 55 5} do_test view-5.9 { lsearch [execsql { EXPLAIN SELECT * FROM t1 AS a, v5 AS b, t2 AS c WHERE a.x=b.v AND b.w=c.y; }] OpenTemp } {-1} do_test view-6.1 { execsql { SELECT min(x), min(a), min(b), min(c), min(a+b+c) FROM v2; } } {7 8 9 10 27} do_test view-6.2 { execsql { SELECT max(x), max(a), max(b), max(c), max(a+b+c) FROM v2; } } {11 12 13 14 39} do_test view-7.1 { execsql { CREATE TABLE test1(id integer primary key, a); CREATE TABLE test2(id integer, b); INSERT INTO test1 VALUES(1,2); INSERT INTO test2 VALUES(1,3); CREATE VIEW test AS SELECT test1.id, a, b FROM test1 JOIN test2 ON test2.id=test1.id; SELECT * FROM test; } } {1 2 3} do_test view-7.2 { db close sqlite db test.db execsql { SELECT * FROM test; } } {1 2 3} do_test view-7.3 { execsql { DROP VIEW test; CREATE VIEW test AS SELECT test1.id, a, b FROM test1 JOIN test2 USING(id); SELECT * FROM test; } } {1 2 3} do_test view-7.4 { db close sqlite db test.db execsql { SELECT * FROM test; } } {1 2 3} do_test view-7.5 { execsql { DROP VIEW test; CREATE VIEW test AS SELECT test1.id, a, b FROM test1 NATURAL JOIN test2; SELECT * FROM test; } } {1 2 3} do_test view-7.6 { db close sqlite db test.db execsql { SELECT * FROM test; } } {1 2 3} do_test view-8.1 { execsql { CREATE VIEW v6 AS SELECT pqr, xyz FROM v1; SELECT * FROM v6 ORDER BY xyz; } } {7 2 13 5 19 8 27 12} do_test view-8.2 { db close sqlite db test.db execsql { SELECT * FROM v6 ORDER BY xyz; } } {7 2 13 5 19 8 27 12} do_test view-8.3 { execsql { CREATE VIEW v7 AS SELECT pqr+xyz AS a FROM v6; SELECT * FROM v7 ORDER BY a; } } {9 18 27 39} do_test view-8.4 { execsql { CREATE VIEW v8 AS SELECT max(cnt) AS mx FROM (SELECT a%2 AS eo, count(*) AS cnt FROM t1 GROUP BY eo); SELECT * FROM v8; } } 3 do_test view-8.5 { execsql { SELECT mx+10, mx*2 FROM v8; } } {13 6} do_test view-8.6 { execsql { SELECT mx+10, pqr FROM v6, v8 WHERE xyz=2; } } {13 7} do_test view-8.7 { execsql { SELECT mx+10, pqr FROM v6, v8 WHERE xyz>2; } } {13 13 13 19 13 27} # Tests for a bug found by Michiel de Wit involving ORDER BY in a VIEW. # do_test view-9.1 { execsql { INSERT INTO t2 SELECT * FROM t2 WHERE a<5; INSERT INTO t2 SELECT * FROM t2 WHERE a<4; INSERT INTO t2 SELECT * FROM t2 WHERE a<3; SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1; } } {1 2 4 8} do_test view-9.2 { execsql { SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1 LIMIT 3; } } {1 2 4} do_test view-9.3 { execsql { CREATE VIEW v9 AS SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1 LIMIT 3; SELECT * FROM v9; } } {1 2 4} do_test view-9.4 { execsql { SELECT * FROM v9 ORDER BY 1 DESC; } } {4 2 1} do_test view-9.5 { execsql { CREATE VIEW v10 AS SELECT DISTINCT a, count(*) FROM t2 GROUP BY a ORDER BY 2 LIMIT 3; SELECT * FROM v10; } } {5 1 4 2 3 4} do_test view-9.6 { execsql { SELECT * FROM v10 ORDER BY 1; } } {3 4 4 2 5 1} # Tables with columns having peculiar quoted names used in views # Ticket #756. # do_test view-10.1 { execsql { CREATE TABLE t3("9" integer, [4] text); INSERT INTO t3 VALUES(1,2); CREATE VIEW v_t3_a AS SELECT a.[9] FROM t3 AS a; CREATE VIEW v_t3_b AS SELECT "4" FROM t3; SELECT * FROM v_t3_a; } } {1} do_test view-10.2 { execsql { SELECT * FROM v_t3_b; } } {2} finish_test