1 # 2002 February 26

     2 #

     3 # The author disclaims copyright to this source code.  In place of

     4 # a legal notice, here is a blessing:

     5 #

     6 #    May you do good and not evil.

     7 #    May you find forgiveness for yourself and forgive others.

     8 #    May you share freely, never taking more than you give.

     9 #

    10 #***********************************************************************

    11 # This file implements regression tests for SQLite library.  The

    12 # focus of this file is testing VIEW statements.

    13 #

    14 # $Id: view.test,v 1.38 2008/08/21 14:54:29 drh Exp $

    15 set testdir [file dirname $argv0]

    16 source $testdir/tester.tcl

    17 

    18 # Omit this entire file if the library is not configured with views enabled.

    19 ifcapable !view {

    20   finish_test

    21   return

    22 }

    23 

    24 do_test view-1.0 {

    25   execsql {

    26     CREATE TABLE t1(a,b,c);

    27     INSERT INTO t1 VALUES(1,2,3);

    28     INSERT INTO t1 VALUES(4,5,6);

    29     INSERT INTO t1 VALUES(7,8,9);

    30     SELECT * FROM t1;

    31   }

    32 } {1 2 3 4 5 6 7 8 9}

    33 

    34 do_test view-1.1 {

    35   execsql {

    36     BEGIN;

    37     CREATE VIEW IF NOT EXISTS v1 AS SELECT a,b FROM t1;

    38     SELECT * FROM v1 ORDER BY a;

    39   }

    40 } {1 2 4 5 7 8}

    41 do_test view-1.2 {

    42   catchsql {

    43     ROLLBACK;

    44     SELECT * FROM v1 ORDER BY a;

    45   }

    46 } {1 {no such table: v1}}

    47 do_test view-1.3 {

    48   execsql {

    49     CREATE VIEW v1 AS SELECT a,b FROM t1;

    50     SELECT * FROM v1 ORDER BY a;

    51   }

    52 } {1 2 4 5 7 8}

    53 do_test view-1.3.1 {

    54   db close

    55   sqlite3 db test.db

    56   execsql {

    57     SELECT * FROM v1 ORDER BY a;

    58   }

    59 } {1 2 4 5 7 8}

    60 do_test view-1.4 {

    61   catchsql {

    62     DROP VIEW IF EXISTS v1;

    63     SELECT * FROM v1 ORDER BY a;

    64   }

    65 } {1 {no such table: v1}}

    66 do_test view-1.5 {

    67   execsql {

    68     CREATE VIEW v1 AS SELECT a,b FROM t1;

    69     SELECT * FROM v1 ORDER BY a;

    70   }

    71 } {1 2 4 5 7 8}

    72 do_test view-1.6 {

    73   catchsql {

    74     DROP TABLE t1;

    75     SELECT * FROM v1 ORDER BY a;

    76   }

    77 } {1 {no such table: main.t1}}

    78 do_test view-1.7 {

    79   execsql {

    80     CREATE TABLE t1(x,a,b,c);

    81     INSERT INTO t1 VALUES(1,2,3,4);

    82     INSERT INTO t1 VALUES(4,5,6,7);

    83     INSERT INTO t1 VALUES(7,8,9,10);

    84     SELECT * FROM v1 ORDER BY a;

    85   }

    86 } {2 3 5 6 8 9}

    87 do_test view-1.8 {

    88   db close

    89   sqlite3 db test.db

    90   execsql {

    91     SELECT * FROM v1 ORDER BY a;

    92   }

    93 } {2 3 5 6 8 9}

    94 

    95 do_test view-2.1 {

    96   execsql {

    97     CREATE VIEW v2 AS SELECT * FROM t1 WHERE a>5

    98   };  # No semicolon

    99   execsql2 {

   100     SELECT * FROM v2;

   101   }

   102 } {x 7 a 8 b 9 c 10}

   103 do_test view-2.2 {

   104   catchsql {

   105     INSERT INTO v2 VALUES(1,2,3,4);

   106   }

   107 } {1 {cannot modify v2 because it is a view}}

   108 do_test view-2.3 {

   109   catchsql {

   110     UPDATE v2 SET a=10 WHERE a=5;

   111   }

   112 } {1 {cannot modify v2 because it is a view}}

   113 do_test view-2.4 {

   114   catchsql {

   115     DELETE FROM v2;

   116   }

   117 } {1 {cannot modify v2 because it is a view}}

   118 do_test view-2.5 {

   119   execsql {

   120     INSERT INTO t1 VALUES(11,12,13,14);

   121     SELECT * FROM v2 ORDER BY x;

   122   }

   123 } {7 8 9 10 11 12 13 14}

   124 do_test view-2.6 {

   125   execsql {

   126     SELECT x FROM v2 WHERE a>10

   127   }

   128 } {11}

   129 

   130 # Test that column name of views are generated correctly.

   131 #

   132 do_test view-3.1 {

   133   execsql2 {

   134     SELECT * FROM v1 LIMIT 1

   135   }

   136 } {a 2 b 3}

   137 do_test view-3.2 {

   138   execsql2 {

   139     SELECT * FROM v2 LIMIT 1

   140   }

   141 } {x 7 a 8 b 9 c 10}

   142 do_test view-3.3.1 {

   143   execsql2 {

   144     DROP VIEW v1;

   145     CREATE VIEW v1 AS SELECT a AS 'xyz', b+c AS 'pqr', c-b FROM t1;

   146     SELECT * FROM v1 LIMIT 1

   147   }

   148 } {xyz 2 pqr 7 c-b 1}

   149 do_test view-3.3.2 {

   150   execsql2 {

   151     CREATE VIEW v1b AS SELECT t1.a, b+c, t1.c FROM t1;

   152     SELECT * FROM v1b LIMIT 1

   153   }

   154 } {a 2 b+c 7 c 4}

   155 

   156 ifcapable compound {

   157 do_test  view-3.4 {

   158   execsql2 {

   159     CREATE VIEW v3 AS SELECT a FROM t1 UNION SELECT b FROM t1 ORDER BY b;

   160     SELECT * FROM v3 LIMIT 4;

   161   }

   162 } {a 2 a 3 a 5 a 6}

   163 do_test view-3.5 {

   164   execsql2 {

   165     CREATE VIEW v4 AS 

   166       SELECT a, b FROM t1 

   167       UNION

   168       SELECT b AS 'x', a AS 'y' FROM t1

   169       ORDER BY x, y;

   170     SELECT b FROM v4 ORDER BY b LIMIT 4;

   171   }

   172 } {b 2 b 3 b 5 b 6}

   173 } ;# ifcapable compound

   174 

   175 

   176 do_test view-4.1 {

   177   catchsql {

   178     DROP VIEW t1;

   179   }

   180 } {1 {use DROP TABLE to delete table t1}}

   181 do_test view-4.2 {

   182   execsql {

   183     SELECT 1 FROM t1 LIMIT 1;

   184   }

   185 } 1

   186 do_test view-4.3 {

   187   catchsql {

   188     DROP TABLE v1;

   189   }

   190 } {1 {use DROP VIEW to delete view v1}}

   191 do_test view-4.4 {

   192   execsql {

   193      SELECT 1 FROM v1 LIMIT 1;

   194   }

   195 } {1}

   196 do_test view-4.5 {

   197   catchsql {

   198     CREATE INDEX i1v1 ON v1(xyz);

   199   }

   200 } {1 {views may not be indexed}}

   201 

   202 do_test view-5.1 {

   203   execsql {

   204     CREATE TABLE t2(y,a);

   205     INSERT INTO t2 VALUES(22,2);

   206     INSERT INTO t2 VALUES(33,3);

   207     INSERT INTO t2 VALUES(44,4);

   208     INSERT INTO t2 VALUES(55,5);

   209     SELECT * FROM t2;

   210   }

   211 } {22 2 33 3 44 4 55 5}

   212 do_test view-5.2 {

   213   execsql {

   214     CREATE VIEW v5 AS

   215       SELECT t1.x AS v, t2.y AS w FROM t1 JOIN t2 USING(a);

   216     SELECT * FROM v5;

   217   }

   218 } {1 22 4 55}

   219 

   220 # Verify that the view v5 gets flattened.  see sqliteFlattenSubquery().

   221 # This will only work if EXPLAIN is enabled.

   222 # Ticket #272

   223 #

   224 ifcapable {explain} {

   225 do_test view-5.3 {

   226   lsearch [execsql {

   227     EXPLAIN SELECT * FROM v5;

   228   }] OpenEphemeral

   229 } {-1}

   230 do_test view-5.4 {

   231   execsql {

   232     SELECT * FROM v5 AS a, t2 AS b WHERE a.w=b.y;

   233   }

   234 } {1 22 22 2 4 55 55 5}

   235 do_test view-5.5 {

   236   lsearch [execsql {

   237     EXPLAIN SELECT * FROM v5 AS a, t2 AS b WHERE a.w=b.y;

   238   }] OpenEphemeral

   239 } {-1}

   240 do_test view-5.6 {

   241   execsql {

   242     SELECT * FROM t2 AS b, v5 AS a WHERE a.w=b.y;

   243   }

   244 } {22 2 1 22 55 5 4 55}

   245 do_test view-5.7 {

   246   lsearch [execsql {

   247     EXPLAIN SELECT * FROM t2 AS b, v5 AS a WHERE a.w=b.y;

   248   }] OpenEphemeral

   249 } {-1}

   250 do_test view-5.8 {

   251   execsql {

   252     SELECT * FROM t1 AS a, v5 AS b, t2 AS c WHERE a.x=b.v AND b.w=c.y;

   253   }

   254 } {1 2 3 4 1 22 22 2 4 5 6 7 4 55 55 5}

   255 do_test view-5.9 {

   256   lsearch [execsql {

   257     EXPLAIN SELECT * FROM t1 AS a, v5 AS b, t2 AS c WHERE a.x=b.v AND b.w=c.y;

   258   }] OpenEphemeral

   259 } {-1}

   260 } ;# endif explain

   261 

   262 do_test view-6.1 {

   263   execsql {

   264     SELECT min(x), min(a), min(b), min(c), min(a+b+c) FROM v2;

   265   }

   266 } {7 8 9 10 27}

   267 do_test view-6.2 {

   268   execsql {

   269     SELECT max(x), max(a), max(b), max(c), max(a+b+c) FROM v2;

   270   }

   271 } {11 12 13 14 39}

   272 

   273 do_test view-7.1 {

   274   execsql {

   275     CREATE TABLE test1(id integer primary key, a);

   276     CREATE TABLE test2(id integer, b);

   277     INSERT INTO test1 VALUES(1,2);

   278     INSERT INTO test2 VALUES(1,3);

   279     CREATE VIEW test AS

   280       SELECT test1.id, a, b

   281       FROM test1 JOIN test2 ON test2.id=test1.id;

   282     SELECT * FROM test;

   283   }

   284 } {1 2 3}

   285 do_test view-7.2 {

   286   db close

   287   sqlite3 db test.db

   288   execsql {

   289     SELECT * FROM test;

   290   }

   291 } {1 2 3}

   292 do_test view-7.3 {

   293   execsql {

   294     DROP VIEW test;

   295     CREATE VIEW test AS

   296       SELECT test1.id, a, b

   297       FROM test1 JOIN test2 USING(id);

   298     SELECT * FROM test;

   299   }

   300 } {1 2 3}

   301 do_test view-7.4 {

   302   db close

   303   sqlite3 db test.db

   304   execsql {

   305     SELECT * FROM test;

   306   }

   307 } {1 2 3}

   308 do_test view-7.5 {

   309   execsql {

   310     DROP VIEW test;

   311     CREATE VIEW test AS

   312       SELECT test1.id, a, b

   313       FROM test1 NATURAL JOIN test2;

   314     SELECT * FROM test;

   315   }

   316 } {1 2 3}

   317 do_test view-7.6 {

   318   db close

   319   sqlite3 db test.db

   320   execsql {

   321     SELECT * FROM test;

   322   }

   323 } {1 2 3}

   324 

   325 do_test view-8.1 {

   326   execsql {

   327     CREATE VIEW v6 AS SELECT pqr, xyz FROM v1;

   328     SELECT * FROM v6 ORDER BY xyz;

   329   }

   330 } {7 2 13 5 19 8 27 12}

   331 do_test view-8.2 {

   332   db close

   333   sqlite3 db test.db

   334   execsql {

   335     SELECT * FROM v6 ORDER BY xyz;

   336   }

   337 } {7 2 13 5 19 8 27 12}

   338 do_test view-8.3 {

   339   execsql {

   340     CREATE VIEW v7 AS SELECT pqr+xyz AS a FROM v6;

   341     SELECT * FROM v7 ORDER BY a;

   342   }

   343 } {9 18 27 39}

   344 

   345 ifcapable subquery {

   346   do_test view-8.4 {

   347     execsql {

   348       CREATE VIEW v8 AS SELECT max(cnt) AS mx FROM

   349         (SELECT a%2 AS eo, count(*) AS cnt FROM t1 GROUP BY eo);

   350       SELECT * FROM v8;

   351     }

   352   } 3

   353   do_test view-8.5 {

   354     execsql {

   355       SELECT mx+10, mx*2 FROM v8;

   356     }

   357   } {13 6}

   358   do_test view-8.6 {

   359     execsql {

   360       SELECT mx+10, pqr FROM v6, v8 WHERE xyz=2;

   361     }

   362   } {13 7}

   363   do_test view-8.7 {

   364     execsql {

   365       SELECT mx+10, pqr FROM v6, v8 WHERE xyz>2;

   366     }

   367   } {13 13 13 19 13 27}

   368 } ;# ifcapable subquery

   369 

   370 # Tests for a bug found by Michiel de Wit involving ORDER BY in a VIEW.

   371 #

   372 do_test view-9.1 {

   373   execsql {

   374     INSERT INTO t2 SELECT * FROM t2 WHERE a<5;

   375     INSERT INTO t2 SELECT * FROM t2 WHERE a<4;

   376     INSERT INTO t2 SELECT * FROM t2 WHERE a<3;

   377     SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1;

   378   }

   379 } {1 2 4 8}

   380 do_test view-9.2 {

   381   execsql {

   382     SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1 LIMIT 3;

   383   }

   384 } {1 2 4}

   385 do_test view-9.3 {

   386   execsql {

   387     CREATE VIEW v9 AS 

   388        SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1 LIMIT 3;

   389     SELECT * FROM v9;

   390   }

   391 } {1 2 4}

   392 do_test view-9.4 {

   393   execsql {

   394     SELECT * FROM v9 ORDER BY 1 DESC;

   395   }

   396 } {4 2 1}

   397 do_test view-9.5 {

   398   execsql {

   399     CREATE VIEW v10 AS 

   400        SELECT DISTINCT a, count(*) FROM t2 GROUP BY a ORDER BY 2 LIMIT 3;

   401     SELECT * FROM v10;

   402   }

   403 } {5 1 4 2 3 4}

   404 do_test view-9.6 {

   405   execsql {

   406     SELECT * FROM v10 ORDER BY 1;

   407   }

   408 } {3 4 4 2 5 1}

   409 

   410 # Tables with columns having peculiar quoted names used in views

   411 # Ticket #756.

   412 #

   413 do_test view-10.1 {

   414   execsql {

   415     CREATE TABLE t3("9" integer, [4] text);

   416     INSERT INTO t3 VALUES(1,2);

   417     CREATE VIEW v_t3_a AS SELECT a.[9] FROM t3 AS a;

   418     CREATE VIEW v_t3_b AS SELECT "4" FROM t3;

   419     SELECT * FROM v_t3_a;

   420   }

   421 } {1}

   422 do_test view-10.2 {

   423   execsql {

   424     SELECT * FROM v_t3_b;

   425   }

   426 } {2}

   427 

   428 do_test view-11.1 {

   429   execsql {

   430     CREATE TABLE t4(a COLLATE NOCASE);

   431     INSERT INTO t4 VALUES('This');

   432     INSERT INTO t4 VALUES('this');

   433     INSERT INTO t4 VALUES('THIS');

   434     SELECT * FROM t4 WHERE a = 'THIS';

   435   }

   436 } {This this THIS}

   437 ifcapable subquery {

   438   do_test view-11.2 {

   439     execsql {

   440       SELECT * FROM (SELECT * FROM t4) WHERE a = 'THIS';

   441     }

   442   } {This this THIS}

   443 }

   444 do_test view-11.3 {

   445   execsql {

   446     CREATE VIEW v11 AS SELECT * FROM t4;

   447     SELECT * FROM v11 WHERE a = 'THIS';

   448   }

   449 } {This this THIS}

   450 

   451 # Ticket #1270:  Do not allow parameters in view definitions.

   452 #

   453 do_test view-12.1 {

   454   catchsql {

   455     CREATE VIEW v12 AS SELECT a FROM t1 WHERE b=?

   456   }

   457 } {1 {parameters are not allowed in views}}

   458 

   459 ifcapable attach {

   460   do_test view-13.1 {

   461     file delete -force test2.db

   462     catchsql {

   463       ATTACH 'test2.db' AS two;

   464       CREATE TABLE two.t2(x,y);

   465       CREATE VIEW v13 AS SELECT y FROM two.t2;

   466     }

   467   } {1 {view v13 cannot reference objects in database two}}

   468 }

   469 

   470 # Ticket #1658

   471 #

   472 do_test view-14.1 {

   473   catchsql {

   474     CREATE TEMP VIEW t1 AS SELECT a,b FROM t1;

   475     SELECT * FROM temp.t1;

   476   }

   477 } {1 {view t1 is circularly defined}}

   478 

   479 # Tickets #1688, #1709

   480 #

   481 do_test view-15.1 {

   482   execsql2 {

   483     CREATE VIEW v15 AS SELECT a AS x, b AS y FROM t1;

   484     SELECT * FROM v15 LIMIT 1;

   485   }

   486 } {x 2 y 3}

   487 do_test view-15.2 {

   488   execsql2 {

   489     SELECT x, y FROM v15 LIMIT 1

   490   }

   491 } {x 2 y 3}

   492 

   493 do_test view-16.1 {

   494   catchsql {

   495     CREATE VIEW IF NOT EXISTS v1 AS SELECT * FROM t1;

   496   }

   497 } {0 {}}

   498 do_test view-16.2 {

   499   execsql {

   500     SELECT sql FROM sqlite_master WHERE name='v1'

   501   }

   502 } {{CREATE VIEW v1 AS SELECT a AS 'xyz', b+c AS 'pqr', c-b FROM t1}}

   503 do_test view-16.3 {

   504   catchsql {

   505     DROP VIEW IF EXISTS nosuchview

   506   }

   507 } {0 {}}

   508 

   509 # correct error message when attempting to drop a view that does not

   510 # exist.

   511 #

   512 do_test view-17.1 {

   513   catchsql {

   514     DROP VIEW nosuchview

   515   }

   516 } {1 {no such view: nosuchview}}

   517 do_test view-17.2 {

   518   catchsql {

   519     DROP VIEW main.nosuchview

   520   }

   521 } {1 {no such view: main.nosuchview}}

   522 

   523 do_test view-18.1 {

   524   execsql {

   525     DROP VIEW t1;

   526     DROP TABLE t1;

   527     CREATE TABLE t1(a, b, c);

   528     INSERT INTO t1 VALUES(1, 2, 3);

   529     INSERT INTO t1 VALUES(4, 5, 6);

   530 

   531     CREATE VIEW vv1 AS SELECT * FROM t1;

   532     CREATE VIEW vv2 AS SELECT * FROM vv1;

   533     CREATE VIEW vv3 AS SELECT * FROM vv2;

   534     CREATE VIEW vv4 AS SELECT * FROM vv3;

   535     CREATE VIEW vv5 AS SELECT * FROM vv4;

   536 

   537     SELECT * FROM vv5;

   538   }

   539 } {1 2 3 4 5 6}

   540 

   541 # Ticket #3308

   542 # Make sure "rowid" columns in a view are named correctly.

   543 #

   544 do_test view-19.1 {

   545   execsql {

   546     CREATE VIEW v3308a AS SELECT rowid, * FROM t1;

   547   }

   548   execsql2 {

   549     SELECT * FROM v3308a

   550   }

   551 } {rowid 1 a 1 b 2 c 3 rowid 2 a 4 b 5 c 6}

   552 do_test view-19.2 {

   553   execsql {

   554     CREATE VIEW v3308b AS SELECT t1.rowid, t1.a, t1.b+t1.c FROM t1;

   555   }

   556   execsql2 {

   557     SELECT * FROM v3308b

   558   }

   559 } {rowid 1 a 1 t1.b+t1.c 5 rowid 2 a 4 t1.b+t1.c 11}

   560 do_test view-19.3 {

   561   execsql {

   562     CREATE VIEW v3308c AS SELECT t1.oid, A, t1.b+t1.c AS x FROM t1;

   563   }

   564   execsql2 {

   565     SELECT * FROM v3308c

   566   }

   567 } {rowid 1 a 1 x 5 rowid 2 a 4 x 11}

   568 

   569 finish_test