1
2#pragma ident	"%Z%%M%	%I%	%E% SMI"
3
4# 2002 February 26
5#
6# The author disclaims copyright to this source code.  In place of
7# a legal notice, here is a blessing:
8#
9#    May you do good and not evil.
10#    May you find forgiveness for yourself and forgive others.
11#    May you share freely, never taking more than you give.
12#
13#***********************************************************************
14# This file implements regression tests for SQLite library.  The
15# focus of this file is testing VIEW statements.
16#
17# $Id: view.test,v 1.16.2.1 2004/07/20 00:20:47 drh Exp $
18set testdir [file dirname $argv0]
19source $testdir/tester.tcl
20
21do_test view-1.0 {
22  execsql {
23    CREATE TABLE t1(a,b,c);
24    INSERT INTO t1 VALUES(1,2,3);
25    INSERT INTO t1 VALUES(4,5,6);
26    INSERT INTO t1 VALUES(7,8,9);
27    SELECT * FROM t1;
28  }
29} {1 2 3 4 5 6 7 8 9}
30
31do_test view-1.1 {
32  execsql {
33    BEGIN;
34    CREATE VIEW v1 AS SELECT a,b FROM t1;
35    SELECT * FROM v1 ORDER BY a;
36  }
37} {1 2 4 5 7 8}
38do_test view-1.2 {
39  catchsql {
40    ROLLBACK;
41    SELECT * FROM v1 ORDER BY a;
42  }
43} {1 {no such table: v1}}
44do_test view-1.3 {
45  execsql {
46    CREATE VIEW v1 AS SELECT a,b FROM t1;
47    SELECT * FROM v1 ORDER BY a;
48  }
49} {1 2 4 5 7 8}
50do_test view-1.3.1 {
51  db close
52  sqlite db test.db
53  execsql {
54    SELECT * FROM v1 ORDER BY a;
55  }
56} {1 2 4 5 7 8}
57do_test view-1.4 {
58  catchsql {
59    DROP VIEW v1;
60    SELECT * FROM v1 ORDER BY a;
61  }
62} {1 {no such table: v1}}
63do_test view-1.5 {
64  execsql {
65    CREATE VIEW v1 AS SELECT a,b FROM t1;
66    SELECT * FROM v1 ORDER BY a;
67  }
68} {1 2 4 5 7 8}
69do_test view-1.6 {
70  catchsql {
71    DROP TABLE t1;
72    SELECT * FROM v1 ORDER BY a;
73  }
74} {1 {no such table: main.t1}}
75do_test view-1.7 {
76  execsql {
77    CREATE TABLE t1(x,a,b,c);
78    INSERT INTO t1 VALUES(1,2,3,4);
79    INSERT INTO t1 VALUES(4,5,6,7);
80    INSERT INTO t1 VALUES(7,8,9,10);
81    SELECT * FROM v1 ORDER BY a;
82  }
83} {2 3 5 6 8 9}
84do_test view-1.8 {
85  db close
86  sqlite db test.db
87  execsql {
88    SELECT * FROM v1 ORDER BY a;
89  }
90} {2 3 5 6 8 9}
91
92do_test view-2.1 {
93  execsql {
94    CREATE VIEW v2 AS SELECT * FROM t1 WHERE a>5
95  };  # No semicolon
96  execsql2 {
97    SELECT * FROM v2;
98  }
99} {x 7 a 8 b 9 c 10}
100do_test view-2.2 {
101  catchsql {
102    INSERT INTO v2 VALUES(1,2,3,4);
103  }
104} {1 {cannot modify v2 because it is a view}}
105do_test view-2.3 {
106  catchsql {
107    UPDATE v2 SET a=10 WHERE a=5;
108  }
109} {1 {cannot modify v2 because it is a view}}
110do_test view-2.4 {
111  catchsql {
112    DELETE FROM v2;
113  }
114} {1 {cannot modify v2 because it is a view}}
115do_test view-2.5 {
116  execsql {
117    INSERT INTO t1 VALUES(11,12,13,14);
118    SELECT * FROM v2 ORDER BY x;
119  }
120} {7 8 9 10 11 12 13 14}
121do_test view-2.6 {
122  execsql {
123    SELECT x FROM v2 WHERE a>10
124  }
125} {11}
126
127# Test that column name of views are generated correctly.
128#
129do_test view-3.1 {
130  execsql2 {
131    SELECT * FROM v1 LIMIT 1
132  }
133} {a 2 b 3}
134do_test view-3.2 {
135  execsql2 {
136    SELECT * FROM v2 LIMIT 1
137  }
138} {x 7 a 8 b 9 c 10}
139do_test view-3.3 {
140  execsql2 {
141    DROP VIEW v1;
142    CREATE VIEW v1 AS SELECT a AS 'xyz', b+c AS 'pqr', c-b FROM t1;
143    SELECT * FROM v1 LIMIT 1
144  }
145} {xyz 2 pqr 7 c-b 1}
146do_test  view-3.4 {
147  execsql2 {
148    CREATE VIEW v3 AS SELECT a FROM t1 UNION SELECT b FROM t1 ORDER BY b;
149    SELECT * FROM v3 LIMIT 4;
150  }
151} {b 2 b 3 b 5 b 6}
152do_test  view-3.5 {
153  execsql2 {
154    CREATE VIEW v4 AS
155      SELECT a, b FROM t1
156      UNION
157      SELECT b AS 'x', a AS 'y' FROM t1
158      ORDER BY x, y;
159    SELECT y FROM v4 ORDER BY y LIMIT 4;
160  }
161} {y 2 y 3 y 5 y 6}
162
163
164do_test view-4.1 {
165  catchsql {
166    DROP VIEW t1;
167  }
168} {1 {use DROP TABLE to delete table t1}}
169do_test view-4.2 {
170  execsql {
171    SELECT 1 FROM t1 LIMIT 1;
172  }
173} 1
174do_test view-4.3 {
175  catchsql {
176    DROP TABLE v1;
177  }
178} {1 {use DROP VIEW to delete view v1}}
179do_test view-4.4 {
180  execsql {
181     SELECT 1 FROM v1 LIMIT 1;
182  }
183} {1}
184do_test view-4.5 {
185  catchsql {
186    CREATE INDEX i1v1 ON v1(xyz);
187  }
188} {1 {views may not be indexed}}
189
190do_test view-5.1 {
191  execsql {
192    CREATE TABLE t2(y,a);
193    INSERT INTO t2 VALUES(22,2);
194    INSERT INTO t2 VALUES(33,3);
195    INSERT INTO t2 VALUES(44,4);
196    INSERT INTO t2 VALUES(55,5);
197    SELECT * FROM t2;
198  }
199} {22 2 33 3 44 4 55 5}
200do_test view-5.2 {
201  execsql {
202    CREATE VIEW v5 AS
203      SELECT t1.x AS v, t2.y AS w FROM t1 JOIN t2 USING(a);
204    SELECT * FROM v5;
205  }
206} {1 22 4 55}
207
208# Verify that the view v5 gets flattened.  see sqliteFlattenSubquery().
209# Ticket #272
210do_test view-5.3 {
211  lsearch [execsql {
212    EXPLAIN SELECT * FROM v5;
213  }] OpenTemp
214} {-1}
215do_test view-5.4 {
216  execsql {
217    SELECT * FROM v5 AS a, t2 AS b WHERE a.w=b.y;
218  }
219} {1 22 22 2 4 55 55 5}
220do_test view-5.5 {
221  lsearch [execsql {
222    EXPLAIN SELECT * FROM v5 AS a, t2 AS b WHERE a.w=b.y;
223  }] OpenTemp
224} {-1}
225do_test view-5.6 {
226  execsql {
227    SELECT * FROM t2 AS b, v5 AS a WHERE a.w=b.y;
228  }
229} {22 2 1 22 55 5 4 55}
230do_test view-5.7 {
231  lsearch [execsql {
232    EXPLAIN SELECT * FROM t2 AS b, v5 AS a WHERE a.w=b.y;
233  }] OpenTemp
234} {-1}
235do_test view-5.8 {
236  execsql {
237    SELECT * FROM t1 AS a, v5 AS b, t2 AS c WHERE a.x=b.v AND b.w=c.y;
238  }
239} {1 2 3 4 1 22 22 2 4 5 6 7 4 55 55 5}
240do_test view-5.9 {
241  lsearch [execsql {
242    EXPLAIN SELECT * FROM t1 AS a, v5 AS b, t2 AS c WHERE a.x=b.v AND b.w=c.y;
243  }] OpenTemp
244} {-1}
245
246do_test view-6.1 {
247  execsql {
248    SELECT min(x), min(a), min(b), min(c), min(a+b+c) FROM v2;
249  }
250} {7 8 9 10 27}
251do_test view-6.2 {
252  execsql {
253    SELECT max(x), max(a), max(b), max(c), max(a+b+c) FROM v2;
254  }
255} {11 12 13 14 39}
256
257do_test view-7.1 {
258  execsql {
259    CREATE TABLE test1(id integer primary key, a);
260    CREATE TABLE test2(id integer, b);
261    INSERT INTO test1 VALUES(1,2);
262    INSERT INTO test2 VALUES(1,3);
263    CREATE VIEW test AS
264      SELECT test1.id, a, b
265      FROM test1 JOIN test2 ON test2.id=test1.id;
266    SELECT * FROM test;
267  }
268} {1 2 3}
269do_test view-7.2 {
270  db close
271  sqlite db test.db
272  execsql {
273    SELECT * FROM test;
274  }
275} {1 2 3}
276do_test view-7.3 {
277  execsql {
278    DROP VIEW test;
279    CREATE VIEW test AS
280      SELECT test1.id, a, b
281      FROM test1 JOIN test2 USING(id);
282    SELECT * FROM test;
283  }
284} {1 2 3}
285do_test view-7.4 {
286  db close
287  sqlite db test.db
288  execsql {
289    SELECT * FROM test;
290  }
291} {1 2 3}
292do_test view-7.5 {
293  execsql {
294    DROP VIEW test;
295    CREATE VIEW test AS
296      SELECT test1.id, a, b
297      FROM test1 NATURAL JOIN test2;
298    SELECT * FROM test;
299  }
300} {1 2 3}
301do_test view-7.6 {
302  db close
303  sqlite db test.db
304  execsql {
305    SELECT * FROM test;
306  }
307} {1 2 3}
308
309do_test view-8.1 {
310  execsql {
311    CREATE VIEW v6 AS SELECT pqr, xyz FROM v1;
312    SELECT * FROM v6 ORDER BY xyz;
313  }
314} {7 2 13 5 19 8 27 12}
315do_test view-8.2 {
316  db close
317  sqlite db test.db
318  execsql {
319    SELECT * FROM v6 ORDER BY xyz;
320  }
321} {7 2 13 5 19 8 27 12}
322do_test view-8.3 {
323  execsql {
324    CREATE VIEW v7 AS SELECT pqr+xyz AS a FROM v6;
325    SELECT * FROM v7 ORDER BY a;
326  }
327} {9 18 27 39}
328do_test view-8.4 {
329  execsql {
330    CREATE VIEW v8 AS SELECT max(cnt) AS mx FROM
331      (SELECT a%2 AS eo, count(*) AS cnt FROM t1 GROUP BY eo);
332    SELECT * FROM v8;
333  }
334} 3
335do_test view-8.5 {
336  execsql {
337    SELECT mx+10, mx*2 FROM v8;
338  }
339} {13 6}
340do_test view-8.6 {
341  execsql {
342    SELECT mx+10, pqr FROM v6, v8 WHERE xyz=2;
343  }
344} {13 7}
345do_test view-8.7 {
346  execsql {
347    SELECT mx+10, pqr FROM v6, v8 WHERE xyz>2;
348  }
349} {13 13 13 19 13 27}
350
351# Tests for a bug found by Michiel de Wit involving ORDER BY in a VIEW.
352#
353do_test view-9.1 {
354  execsql {
355    INSERT INTO t2 SELECT * FROM t2 WHERE a<5;
356    INSERT INTO t2 SELECT * FROM t2 WHERE a<4;
357    INSERT INTO t2 SELECT * FROM t2 WHERE a<3;
358    SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1;
359  }
360} {1 2 4 8}
361do_test view-9.2 {
362  execsql {
363    SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1 LIMIT 3;
364  }
365} {1 2 4}
366do_test view-9.3 {
367  execsql {
368    CREATE VIEW v9 AS
369       SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1 LIMIT 3;
370    SELECT * FROM v9;
371  }
372} {1 2 4}
373do_test view-9.4 {
374  execsql {
375    SELECT * FROM v9 ORDER BY 1 DESC;
376  }
377} {4 2 1}
378do_test view-9.5 {
379  execsql {
380    CREATE VIEW v10 AS
381       SELECT DISTINCT a, count(*) FROM t2 GROUP BY a ORDER BY 2 LIMIT 3;
382    SELECT * FROM v10;
383  }
384} {5 1 4 2 3 4}
385do_test view-9.6 {
386  execsql {
387    SELECT * FROM v10 ORDER BY 1;
388  }
389} {3 4 4 2 5 1}
390
391# Tables with columns having peculiar quoted names used in views
392# Ticket #756.
393#
394do_test view-10.1 {
395  execsql {
396    CREATE TABLE t3("9" integer, [4] text);
397    INSERT INTO t3 VALUES(1,2);
398    CREATE VIEW v_t3_a AS SELECT a.[9] FROM t3 AS a;
399    CREATE VIEW v_t3_b AS SELECT "4" FROM t3;
400    SELECT * FROM v_t3_a;
401  }
402} {1}
403do_test view-10.2 {
404  execsql {
405    SELECT * FROM v_t3_b;
406  }
407} {2}
408
409
410finish_test
411