| Index: third_party/sqlite/test/subselect.test
|
| ===================================================================
|
| --- third_party/sqlite/test/subselect.test (revision 56608)
|
| +++ third_party/sqlite/test/subselect.test (working copy)
|
| @@ -1,210 +0,0 @@
|
| -# 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 SQLite library. The
|
| -# focus of this file is testing SELECT statements that are part of
|
| -# expressions.
|
| -#
|
| -# $Id: subselect.test,v 1.16 2008/08/04 03:51:24 danielk1977 Exp $
|
| -
|
| -set testdir [file dirname $argv0]
|
| -source $testdir/tester.tcl
|
| -
|
| -# Omit this whole file if the library is build without subquery support.
|
| -ifcapable !subquery {
|
| - finish_test
|
| - return
|
| -}
|
| -
|
| -# Basic sanity checking. Try a simple subselect.
|
| -#
|
| -do_test subselect-1.1 {
|
| - execsql {
|
| - CREATE TABLE t1(a int, b int);
|
| - INSERT INTO t1 VALUES(1,2);
|
| - INSERT INTO t1 VALUES(3,4);
|
| - INSERT INTO t1 VALUES(5,6);
|
| - }
|
| - execsql {SELECT * FROM t1 WHERE a = (SELECT count(*) FROM t1)}
|
| -} {3 4}
|
| -
|
| -# Try a select with more than one result column.
|
| -#
|
| -do_test subselect-1.2 {
|
| - set v [catch {execsql {SELECT * FROM t1 WHERE a = (SELECT * FROM t1)}} msg]
|
| - lappend v $msg
|
| -} {1 {only a single result allowed for a SELECT that is part of an expression}}
|
| -
|
| -# A subselect without an aggregate.
|
| -#
|
| -do_test subselect-1.3a {
|
| - execsql {SELECT b from t1 where a = (SELECT a FROM t1 WHERE b=2)}
|
| -} {2}
|
| -do_test subselect-1.3b {
|
| - execsql {SELECT b from t1 where a = (SELECT a FROM t1 WHERE b=4)}
|
| -} {4}
|
| -do_test subselect-1.3c {
|
| - execsql {SELECT b from t1 where a = (SELECT a FROM t1 WHERE b=6)}
|
| -} {6}
|
| -do_test subselect-1.3d {
|
| - execsql {SELECT b from t1 where a = (SELECT a FROM t1 WHERE b=8)}
|
| -} {}
|
| -ifcapable compound {
|
| - do_test subselect-1.3e {
|
| - execsql {
|
| - SELECT b FROM t1
|
| - WHERE a = (SELECT a FROM t1 UNION SELECT b FROM t1 ORDER BY 1);
|
| - }
|
| - } {2}
|
| -}
|
| -
|
| -# What if the subselect doesn't return any value. We should get
|
| -# NULL as the result. Check it out.
|
| -#
|
| -do_test subselect-1.4 {
|
| - execsql {SELECT b from t1 where a = coalesce((SELECT a FROM t1 WHERE b=5),1)}
|
| -} {2}
|
| -
|
| -# Try multiple subselects within a single expression.
|
| -#
|
| -do_test subselect-1.5 {
|
| - execsql {
|
| - CREATE TABLE t2(x int, y int);
|
| - INSERT INTO t2 VALUES(1,2);
|
| - INSERT INTO t2 VALUES(2,4);
|
| - INSERT INTO t2 VALUES(3,8);
|
| - INSERT INTO t2 VALUES(4,16);
|
| - }
|
| - execsql {
|
| - SELECT y from t2
|
| - WHERE x = (SELECT sum(b) FROM t1 where a notnull) - (SELECT sum(a) FROM t1)
|
| - }
|
| -} {8}
|
| -
|
| -# Try something useful. Delete every entry from t2 where the
|
| -# x value is less than half of the maximum.
|
| -#
|
| -do_test subselect-1.6 {
|
| - execsql {DELETE FROM t2 WHERE x < 0.5*(SELECT max(x) FROM t2)}
|
| - execsql {SELECT x FROM t2 ORDER BY x}
|
| -} {2 3 4}
|
| -
|
| -# Make sure sorting works for SELECTs there used as a scalar expression.
|
| -#
|
| -do_test subselect-2.1 {
|
| - execsql {
|
| - SELECT (SELECT a FROM t1 ORDER BY a), (SELECT a FROM t1 ORDER BY a DESC)
|
| - }
|
| -} {1 5}
|
| -do_test subselect-2.2 {
|
| - execsql {
|
| - SELECT 1 IN (SELECT a FROM t1 ORDER BY a);
|
| - }
|
| -} {1}
|
| -do_test subselect-2.3 {
|
| - execsql {
|
| - SELECT 2 IN (SELECT a FROM t1 ORDER BY a DESC);
|
| - }
|
| -} {0}
|
| -
|
| -# Verify that the ORDER BY clause is honored in a subquery.
|
| -#
|
| -ifcapable compound {
|
| -do_test subselect-3.1 {
|
| - execsql {
|
| - CREATE TABLE t3(x int);
|
| - INSERT INTO t3 SELECT a FROM t1 UNION ALL SELECT b FROM t1;
|
| - SELECT * FROM t3 ORDER BY x;
|
| - }
|
| -} {1 2 3 4 5 6}
|
| -} ;# ifcapable compound
|
| -ifcapable !compound {
|
| -do_test subselect-3.1 {
|
| - execsql {
|
| - CREATE TABLE t3(x int);
|
| - INSERT INTO t3 SELECT a FROM t1;
|
| - INSERT INTO t3 SELECT b FROM t1;
|
| - SELECT * FROM t3 ORDER BY x;
|
| - }
|
| -} {1 2 3 4 5 6}
|
| -} ;# ifcapable !compound
|
| -
|
| -do_test subselect-3.2 {
|
| - execsql {
|
| - SELECT sum(x) FROM (SELECT x FROM t3 ORDER BY x LIMIT 2);
|
| - }
|
| -} {3}
|
| -do_test subselect-3.3 {
|
| - execsql {
|
| - SELECT sum(x) FROM (SELECT x FROM t3 ORDER BY x DESC LIMIT 2);
|
| - }
|
| -} {11}
|
| -do_test subselect-3.4 {
|
| - execsql {
|
| - SELECT (SELECT x FROM t3 ORDER BY x);
|
| - }
|
| -} {1}
|
| -do_test subselect-3.5 {
|
| - execsql {
|
| - SELECT (SELECT x FROM t3 ORDER BY x DESC);
|
| - }
|
| -} {6}
|
| -do_test subselect-3.6 {
|
| - execsql {
|
| - SELECT (SELECT x FROM t3 ORDER BY x LIMIT 1);
|
| - }
|
| -} {1}
|
| -do_test subselect-3.7 {
|
| - execsql {
|
| - SELECT (SELECT x FROM t3 ORDER BY x DESC LIMIT 1);
|
| - }
|
| -} {6}
|
| -do_test subselect-3.8 {
|
| - execsql {
|
| - SELECT (SELECT x FROM t3 ORDER BY x LIMIT 1 OFFSET 2);
|
| - }
|
| -} {3}
|
| -do_test subselect-3.9 {
|
| - execsql {
|
| - SELECT (SELECT x FROM t3 ORDER BY x DESC LIMIT 1 OFFSET 2);
|
| - }
|
| -} {4}
|
| -do_test subselect-3.10 {
|
| - execsql {
|
| - SELECT x FROM t3 WHERE x IN
|
| - (SELECT x FROM t3 ORDER BY x DESC LIMIT 1 OFFSET 2);
|
| - }
|
| -} {4}
|
| -
|
| -# Ticket #2295.
|
| -# Make sure type affinities work correctly on subqueries with
|
| -# an ORDER BY clause.
|
| -#
|
| -do_test subselect-4.1 {
|
| - execsql {
|
| - CREATE TABLE t4(a TEXT, b TEXT);
|
| - INSERT INTO t4 VALUES('a','1');
|
| - INSERT INTO t4 VALUES('b','2');
|
| - INSERT INTO t4 VALUES('c','3');
|
| - SELECT a FROM t4 WHERE b IN (SELECT b FROM t4 ORDER BY b);
|
| - }
|
| -} {a b c}
|
| -do_test subselect-4.2 {
|
| - execsql {
|
| - SELECT a FROM t4 WHERE b IN (SELECT b FROM t4 ORDER BY b LIMIT 1);
|
| - }
|
| -} {a}
|
| -do_test subselect-4.3 {
|
| - execsql {
|
| - SELECT a FROM t4 WHERE b IN (SELECT b FROM t4 ORDER BY b DESC LIMIT 1);
|
| - }
|
| -} {c}
|
| -
|
| -finish_test
|
|
|