| # 2005 September 11 |
| # |
| # The author disclaims copyright to this source code. In place of |
| # a legal notice, here is a blessing: |
| # |
| # May you do good and not evil. |
| # May you find forgiveness for yourself and forgive others. |
| # May you share freely, never taking more than you give. |
| # |
| #*********************************************************************** |
| # This file implements regression tests for SQLite library. The |
| # focus of this script is the DISTINCT modifier on aggregate functions. |
| # |
| # $Id: distinctagg.test,v 1.3 2009/02/09 13:19:28 drh Exp $ |
| |
| |
| set testdir [file dirname $argv0] |
| source $testdir/tester.tcl |
| |
| do_test distinctagg-1.1 { |
| execsql { |
| CREATE TABLE t1(a,b,c); |
| INSERT INTO t1 VALUES(1,2,3); |
| INSERT INTO t1 VALUES(1,3,4); |
| INSERT INTO t1 VALUES(1,3,5); |
| SELECT count(distinct a), |
| count(distinct b), |
| count(distinct c), |
| count(all a) FROM t1; |
| } |
| } {1 2 3 3} |
| do_test distinctagg-1.2 { |
| execsql { |
| SELECT b, count(distinct c) FROM t1 GROUP BY b ORDER BY b |
| } |
| } {2 1 3 2} |
| do_test distinctagg-1.3 { |
| execsql { |
| INSERT INTO t1 SELECT a+1, b+3, c+5 FROM t1; |
| INSERT INTO t1 SELECT a+2, b+6, c+10 FROM t1; |
| INSERT INTO t1 SELECT a+4, b+12, c+20 FROM t1; |
| SELECT count(*), count(distinct a), count(distinct b) FROM t1 |
| } |
| } {24 8 16} |
| do_test distinctagg-1.4 { |
| execsql { |
| SELECT a, count(distinct c) FROM t1 GROUP BY a ORDER BY a |
| } |
| } {1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3} |
| |
| do_test distinctagg-2.1 { |
| catchsql { |
| SELECT count(distinct) FROM t1; |
| } |
| } {1 {DISTINCT aggregates must have exactly one argument}} |
| do_test distinctagg-2.2 { |
| catchsql { |
| SELECT group_concat(distinct a,b) FROM t1; |
| } |
| } {1 {DISTINCT aggregates must have exactly one argument}} |
| |
| finish_test |