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| 1 # 2012 April 19 | |
| 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 # The tests in this file were used while developing the SQLite 4 code. | |
| 12 # | |
| 13 | |
| 14 set testdir [file dirname $argv0] | |
| 15 source $testdir/tester.tcl | |
| 16 set testprefix tkt-2a5629202f | |
| 17 | |
| 18 # This procedure executes the SQL. Then it checks to see if the OP_Sort | |
| 19 # opcode was executed. If an OP_Sort did occur, then "sort" is appended | |
| 20 # to the result. If no OP_Sort happened, then "nosort" is appended. | |
| 21 # | |
| 22 # This procedure is used to check to make sure sorting is or is not | |
| 23 # occurring as expected. | |
| 24 # | |
| 25 proc cksort {sql} { | |
| 26 set data [execsql $sql] | |
| 27 if {[db status sort]} {set x sort} {set x nosort} | |
| 28 lappend data $x | |
| 29 return $data | |
| 30 } | |
| 31 | |
| 32 do_execsql_test 1.1 { | |
| 33 CREATE TABLE t8(b TEXT, c TEXT); | |
| 34 INSERT INTO t8 VALUES('a', 'one'); | |
| 35 INSERT INTO t8 VALUES('b', 'two'); | |
| 36 INSERT INTO t8 VALUES(NULL, 'three'); | |
| 37 INSERT INTO t8 VALUES(NULL, 'four'); | |
| 38 } | |
| 39 | |
| 40 do_execsql_test 1.2 { | |
| 41 SELECT coalesce(b, 'null') || '/' || c FROM t8 x ORDER BY x.b, x.c | |
| 42 } {null/four null/three a/one b/two} | |
| 43 | |
| 44 do_execsql_test 1.3 { | |
| 45 CREATE UNIQUE INDEX i1 ON t8(b); | |
| 46 SELECT coalesce(b, 'null') || '/' || c FROM t8 x ORDER BY x.b, x.c | |
| 47 } {null/four null/three a/one b/two} | |
| 48 | |
| 49 do_execsql_test 1.4 { | |
| 50 DROP INDEX i1; | |
| 51 CREATE UNIQUE INDEX i1 ON t8(b, c); | |
| 52 SELECT coalesce(b, 'null') || '/' || c FROM t8 x ORDER BY x.b, x.c | |
| 53 } {null/four null/three a/one b/two} | |
| 54 | |
| 55 #------------------------------------------------------------------------- | |
| 56 # | |
| 57 | |
| 58 do_execsql_test 2.1 { | |
| 59 CREATE TABLE t2(a, b NOT NULL, c); | |
| 60 CREATE UNIQUE INDEX t2ab ON t2(a, b); | |
| 61 CREATE UNIQUE INDEX t2ba ON t2(b, a); | |
| 62 } | |
| 63 | |
| 64 do_test 2.2 { | |
| 65 cksort { SELECT * FROM t2 WHERE a = 10 ORDER BY a, b, c } | |
| 66 } {nosort} | |
| 67 | |
| 68 do_test 2.3 { | |
| 69 cksort { SELECT * FROM t2 WHERE b = 10 ORDER BY a, b, c } | |
| 70 } {sort} | |
| 71 | |
| 72 do_test 2.4 { | |
| 73 cksort { SELECT * FROM t2 WHERE a IS NULL ORDER BY a, b, c } | |
| 74 } {sort} | |
| 75 | |
| 76 finish_test | |
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