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#!/usr/bin/env tarantool
test = require("sqltester")
test:plan(3)
--!./tcltestrunner.lua
-- 2001 September 15
--
-- 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 sql library.
--
-- The focus of this file is testing that LIMIT and OFFSET work for
-- unusual combinations SELECT statements.
--
-- $Id: select8.test,v 1.1 2008/01/12 12:48:09 drh Exp $
-- ["set","testdir",[["file","dirname",["argv0"]]]]
-- ["source",[["testdir"],"\/tester.tcl"]]
test:execsql [[
DROP TABLE IF EXISTS songs;
CREATE TABLE songs(songid INT primary key, artist TEXT, timesplayed INT);
INSERT INTO songs VALUES(1,'one',1);
INSERT INTO songs VALUES(2,'one',2);
INSERT INTO songs VALUES(3,'two',3);
INSERT INTO songs VALUES(4,'three',5);
INSERT INTO songs VALUES(5,'one',7);
INSERT INTO songs VALUES(6,'two',11);
]]
local result = test:execsql [[
SELECT DISTINCT artist,sum(timesplayed) AS total
FROM songs
GROUP BY LOWER(artist)
]]
function subrange(t, first, last)
local sub = {}
for i=first,last do
sub[#sub + 1] = t[i]
end
return sub
end
test:do_execsql_test(
"select8-1.1",
[[
SELECT DISTINCT artist,sum(timesplayed) AS total
FROM songs
GROUP BY LOWER(artist)
LIMIT 1 OFFSET 1
]], subrange(result, 3, 4))
test:do_execsql_test(
"select8-1.2",
[[
SELECT DISTINCT artist,sum(timesplayed) AS total
FROM songs
GROUP BY LOWER(artist)
LIMIT 2 OFFSET 1
]], subrange(result, 3, 6))
test:do_execsql_test(
"select8-1.3",
[[
SELECT DISTINCT artist,sum(timesplayed) AS total
FROM songs
GROUP BY LOWER(artist)
LIMIT 1000 OFFSET 2
]], subrange(result, 5, #result))
test:finish_test()
|
