# 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