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#!/usr/bin/env tarantool
test = require("sqltester")
test:plan(9)
--!./tcltestrunner.lua
-- 2008 August 28
--
-- 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 script is correct code generation of aliased result-set
-- values. See ticket #3343.
--
-- Aliases are currently evaluated twice. We might try to change this
-- in the future. But not now.
-- A procedure to return a sequence of increasing integers.
--
counter = 0
-- Function is declared as deterministic deliberately.
-- Otherwise it would be called as much as it occurs in a query.
box.schema.func.create('SEQUENCE', {language = 'Lua', is_deterministic = true,
returns = 'unsigned',
body = 'function() counter = counter + 1 return counter end',
exports = {'LUA', 'SQL'}})
test:do_test(
"alias-1.1",
function()
return test:execsql([[
CREATE TABLE t1(x INT primary key);
INSERT INTO t1 VALUES(9);
INSERT INTO t1 VALUES(8);
INSERT INTO t1 VALUES(7);
SELECT x, sequence() FROM t1 order by x desc;
]])
end, {
-- <alias-1.1>
9, 1, 8, 2, 7, 3
-- </alias-1.1>
})
-- Additional call of sequence() appears due to check sequence() > 0.
-- It happens because of deterministic nature of function.
test:do_test(
"alias-1.2",
function()
counter = 0
return test:execsql([[
SELECT x, sequence() AS y FROM t1 WHERE y> 0 order by x desc
]])
end, {
-- <alias-1.2>
9, 2, 8, 3, 7, 4
-- </alias-1.2>
})
test:do_test(
"alias-1.3",
function()
counter = 0
return test:execsql([[
SELECT x, sequence() AS y FROM t1 WHERE y>0 AND y<99 order by x desc
]])
end, {
-- <alias-1.3>
9, 2, 8, 3, 7, 4
-- </alias-1.3>
})
test:do_test(
"alias-1.4",
function()
counter = 0
return test:execsql([[
SELECT x, sequence() AS y FROM t1 WHERE y>0 AND y<99 AND y!=55 order by x desc
]])
end, {
-- <alias-1.4>
9, 2, 8, 3, 7, 4
-- </alias-1.4>
})
-- test:do_test(
-- "alias-1.5",
-- function()
-- counter = 0
-- return test:execsql([[
-- SELECT x, sequence() AS y FROM t1
-- WHERE y>0 AND y<99 AND y!=55 AND y NOT IN (56,57,58)
-- AND y NOT LIKE 'abc%' AND y%10==2 order by x desc
-- ]])
-- end, {
-- -- <alias-1.5>
-- 8, 2
-- -- </alias-1.5>
-- })
test:do_test(
"alias-1.6",
function()
counter = 0
return test:execsql([[
SELECT x, sequence() AS y FROM t1 WHERE y BETWEEN 0 AND 99 order by x desc
]])
end, {
-- <alias-1.6>
9, 2, 8, 3, 7, 4
-- </alias-1.6>
})
test:do_test(
"alias-1.7",
function()
counter = 0
return test:execsql([[
SELECT x, sequence() AS y FROM t1 WHERE y BETWEEN 0 AND 99 order by x desc
]])
end, {
-- <alias-1.7>
9, 2, 8, 3, 7, 4
-- </alias-1.7>
})
-- test:do_test(
-- "alias-1.8",
-- function()
-- counter = 1
-- return test:execsql([[
-- SELECT x, 1-sequence() AS y FROM t1 ORDER BY y;
-- ]])
-- end, {
-- -- <alias-1.8>
-- 7, 0, 8, 0, 9, 0
-- -- </alias-1.8>
-- })
test:do_test(
"alias-1.9",
function()
counter = 0
return test:execsql([[
SELECT x, sequence() AS y FROM t1 ORDER BY -y
]])
end, {
-- <alias-1.9>
7, 2, 8, 3, 9, 4
-- </alias-1.9>
})
-- Tests below are disabled due to incapability of sorting two or more
-- key columns with different orders (DESC/ASC). As soon as Tarantool
-- supports this feature, these tests will be uncommented.
-- #3016
-- test:do_test(
-- "alias-1.10",
-- function()
-- counter = 0
-- return test:execsql([[
-- SELECT x, sequence() AS y FROM t1 ORDER BY x%2, y
-- ]])
-- end, {
-- -- <alias-1.10>
-- 8, 2, 7, 1, 9, 3
-- -- </alias-1.10>
-- })
test:do_test(
"alias-2.1",
function()
return test:execsql([[
SELECT 4 UNION SELECT 1 ORDER BY 1
]])
end, {
-- <alias-2.1>
1, 4
-- </alias-2.1>
})
test:do_test(
"alias-2.2",
function()
return test:execsql([[
SELECT 4 UNION SELECT 1 UNION SELECT 9 ORDER BY 1
]])
end, {
-- <alias-2.2>
1, 4, 9
-- </alias-2.2>
})
-- Aliases in the GROUP BY clause cause the expression to be evaluated
-- twice in the current implementation. This might change in the future.
--
-- Tests below are disabled due to incapability of sorting two or more
-- key columns with different orders (DESC/ASC). As soon as Tarantool
-- supports this feature, these tests will be uncommented.
-- #3016
-- test:do_test(
-- "alias-3.1",
-- function()
-- counter = 0
-- return test:execsql([[
-- SELECT sequence(*) AS y, count(*) AS z FROM t1 GROUP BY y ORDER BY z, y
-- ]])
-- end, {
-- -- <alias-3.1>
-- 4, 1, 5, 1, 6, 1
-- -- </alias-3.1>
-- })
box.func.SEQUENCE:drop()
test:finish_test()
|
