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Annotation of embedaddon/sqlite3/test/tkt3824.test, revision 1.1

1.1     ! misho       1: # 2009 April 24                                                                 
        !             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: #
        !            12: # Ticket #3824
        !            13: #
        !            14: # When you use an "IS NULL" constraint on a UNIQUE index, the result
        !            15: # is not necessarily UNIQUE.  Make sure the optimizer does not assume
        !            16: # uniqueness.
        !            17: #
        !            18: # $Id: tkt3824.test,v 1.2 2009/04/24 20:32:31 drh Exp $
        !            19: 
        !            20: set testdir [file dirname $argv0]
        !            21: source $testdir/tester.tcl
        !            22: 
        !            23: proc execsql_status {sql {db db}} {
        !            24:   set result [uplevel $db eval [list $sql]]
        !            25:   if {[db status sort]} {
        !            26:     concat $result sort
        !            27:   } else {
        !            28:     concat $result nosort
        !            29:   }
        !            30: }
        !            31: 
        !            32: do_test tkt3824-1.1 {
        !            33:   db eval {
        !            34:     CREATE TABLE t1(a,b);
        !            35:     INSERT INTO t1 VALUES(1,NULL);
        !            36:     INSERT INTO t1 VALUES(9,NULL);
        !            37:     INSERT INTO t1 VALUES(5,NULL);
        !            38:     INSERT INTO t1 VALUES(123,NULL);
        !            39:     INSERT INTO t1 VALUES(-10,NULL);
        !            40:     CREATE UNIQUE INDEX t1b ON t1(b);
        !            41:   }
        !            42:   execsql_status {
        !            43:     SELECT a FROM t1 WHERE b IS NULL ORDER BY a;
        !            44:   }
        !            45: } {-10 1 5 9 123 sort}
        !            46: do_test tkt3824-1.2 {
        !            47:   execsql_status {
        !            48:     SELECT a FROM t1 WHERE b IS NULL ORDER BY b, a;
        !            49:   }
        !            50: } {-10 1 5 9 123 sort}
        !            51: 
        !            52: do_test tkt3824-2.1 {
        !            53:   db eval {
        !            54:     CREATE TABLE t2(a,b,c);
        !            55:     INSERT INTO t2 VALUES(1,1,NULL);
        !            56:     INSERT INTO t2 VALUES(9,2,NULL);
        !            57:     INSERT INTO t2 VALUES(5,2,NULL);
        !            58:     INSERT INTO t2 VALUES(123,3,NULL);
        !            59:     INSERT INTO t2 VALUES(-10,3,NULL);
        !            60:     CREATE UNIQUE INDEX t2bc ON t2(b,c);
        !            61:   }
        !            62:   execsql_status {
        !            63:     SELECT a FROM t2 WHERE b=2 AND c IS NULL ORDER BY a;
        !            64:   }
        !            65: } {5 9 sort}
        !            66: do_test tkt3824-2.2 {
        !            67:   execsql_status {
        !            68:     SELECT a FROM t2 WHERE b=2 AND c IS NULL ORDER BY b, a;
        !            69:   }
        !            70: } {5 9 sort}
        !            71: do_test tkt3824-2.3 {
        !            72:   lsort [execsql_status {
        !            73:     SELECT a FROM t2 WHERE b=2 AND c IS NULL ORDER BY b;
        !            74:   }]
        !            75: } {5 9 nosort}
        !            76: 
        !            77: do_test tkt3824-3.1 {
        !            78:   db eval {
        !            79:     CREATE TABLE t3(x,y);
        !            80:     INSERT INTO t3 SELECT a, b FROM t1;
        !            81:     INSERT INTO t3 VALUES(234,567);
        !            82:     CREATE UNIQUE INDEX t3y ON t3(y);
        !            83:     DELETE FROM t3 WHERE y IS NULL;
        !            84:     SELECT * FROM t3;
        !            85:   }
        !            86: } {234 567}
        !            87: 
        !            88: do_test tkt3824-4.1 {
        !            89:   db eval {
        !            90:     CREATE TABLE t4(x,y);
        !            91:     INSERT INTO t4 SELECT a, b FROM t1;
        !            92:     INSERT INTO t4 VALUES(234,567);
        !            93:     CREATE UNIQUE INDEX t4y ON t4(y);
        !            94:     UPDATE t4 SET rowid=rowid+100 WHERE y IS NULL;
        !            95:     SELECT rowid, x FROM t4 ORDER BY rowid;
        !            96:   }
        !            97: } {6 234 101 1 102 9 103 5 104 123 105 -10}
        !            98: 
        !            99: finish_test