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COUNT(DISTINCT x) is now fully functional, though it could benefit from

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additional testing. (CVS 2688)

FossilOrigin-Name: 2f397bd8142ec5e8f7238127012d14fdb558d918
This commit is contained in:
drh
2005-09-11 11:56:27 +00:00
parent 00b950d71e
commit c99130fd82
7 changed files with 122 additions and 35 deletions
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44
test/distinctagg.test Normal file
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# 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 1.1 2005/09/11 11:56:28 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-2.1 {
catchsql {
SELECT count(distinct) FROM t1;
}
} {1 {DISTINCT in aggregate must be followed by an expression}}
finish_test