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| 1 # 2005 September 11 | |
| 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 script is the DISTINCT modifier on aggregate functions. | |
| 13 # | |
| 14 # $Id: distinctagg.test,v 1.3 2009/02/09 13:19:28 drh Exp $ | |
| 15 | |
| 16 | |
| 17 set testdir [file dirname $argv0] | |
| 18 source $testdir/tester.tcl | |
| 19 | |
| 20 do_test distinctagg-1.1 { | |
| 21 execsql { | |
| 22 CREATE TABLE t1(a,b,c); | |
| 23 INSERT INTO t1 VALUES(1,2,3); | |
| 24 INSERT INTO t1 VALUES(1,3,4); | |
| 25 INSERT INTO t1 VALUES(1,3,5); | |
| 26 SELECT count(distinct a), | |
| 27 count(distinct b), | |
| 28 count(distinct c), | |
| 29 count(all a) FROM t1; | |
| 30 } | |
| 31 } {1 2 3 3} | |
| 32 do_test distinctagg-1.2 { | |
| 33 execsql { | |
| 34 SELECT b, count(distinct c) FROM t1 GROUP BY b ORDER BY b | |
| 35 } | |
| 36 } {2 1 3 2} | |
| 37 do_test distinctagg-1.3 { | |
| 38 execsql { | |
| 39 INSERT INTO t1 SELECT a+1, b+3, c+5 FROM t1; | |
| 40 INSERT INTO t1 SELECT a+2, b+6, c+10 FROM t1; | |
| 41 INSERT INTO t1 SELECT a+4, b+12, c+20 FROM t1; | |
| 42 SELECT count(*), count(distinct a), count(distinct b) FROM t1 | |
| 43 } | |
| 44 } {24 8 16} | |
| 45 do_test distinctagg-1.4 { | |
| 46 execsql { | |
| 47 SELECT a, count(distinct c) FROM t1 GROUP BY a ORDER BY a | |
| 48 } | |
| 49 } {1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3} | |
| 50 | |
| 51 do_test distinctagg-2.1 { | |
| 52 catchsql { | |
| 53 SELECT count(distinct) FROM t1; | |
| 54 } | |
| 55 } {1 {DISTINCT aggregates must have exactly one argument}} | |
| 56 do_test distinctagg-2.2 { | |
| 57 catchsql { | |
| 58 SELECT group_concat(distinct a,b) FROM t1; | |
| 59 } | |
| 60 } {1 {DISTINCT aggregates must have exactly one argument}} | |
| 61 | |
| 62 finish_test | |
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