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+# 2013 January 09
+#
+# 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 that the optimizations that disable
+# ORDER BY clauses work correctly on a 3-way join. See ticket
+# http://www.sqlite.org/src/956e4d7f89
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderby3
+
+# Generate test data for a join. Verify that the join gets the
+# correct answer.
+#
+do_execsql_test 1.0 {
+ CREATE TABLE t1(a INTEGER PRIMARY KEY);
+ CREATE TABLE t2(b INTEGER PRIMARY KEY, c INTEGER);
+ CREATE TABLE t3(d INTEGER);
+
+ INSERT INTO t1 VALUES(1),(2),(3);
+
+ INSERT INTO t2 VALUES(3, 1);
+ INSERT INTO t2 VALUES(4, 2);
+ INSERT INTO t2 VALUES(5, 3);
+
+ INSERT INTO t3 VALUES(4),(3),(5);
+} {}
+do_execsql_test 1.1.asc {
+ SELECT t1.a
+ FROM t1, t2, t3
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.1.desc {
+ SELECT t1.a
+ FROM t1, t2, t3
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a DESC;
+} {3 2 1}
+do_execsql_test 1.123.asc {
+ SELECT t1.a
+ FROM t1 CROSS JOIN t2 CROSS JOIN t3
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.123.desc {
+ SELECT t1.a
+ FROM t1 CROSS JOIN t2 CROSS JOIN t3
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a DESC;
+} {3 2 1}
+do_execsql_test 1.132.asc {
+ SELECT t1.a
+ FROM t1 CROSS JOIN t3 CROSS JOIN t2
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.132.desc {
+ SELECT t1.a
+ FROM t1 CROSS JOIN t3 CROSS JOIN t2
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a DESC;
+} {3 2 1}
+do_execsql_test 1.213.asc {
+ SELECT t1.a
+ FROM t2 CROSS JOIN t1 CROSS JOIN t3
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.213.desc {
+ SELECT t1.a
+ FROM t2 CROSS JOIN t1 CROSS JOIN t3
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a DESC;
+} {3 2 1}
+do_execsql_test 1.231.asc {
+ SELECT t1.a
+ FROM t2 CROSS JOIN t3 CROSS JOIN t1
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.231.desc {
+ SELECT t1.a
+ FROM t2 CROSS JOIN t3 CROSS JOIN t1
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a DESC;
+} {3 2 1}
+do_execsql_test 1.312.asc {
+ SELECT t1.a
+ FROM t3 CROSS JOIN t1 CROSS JOIN t2
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.312.desc {
+ SELECT t1.a
+ FROM t3 CROSS JOIN t1 CROSS JOIN t2
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a DESC;
+} {3 2 1}
+do_execsql_test 1.321.asc {
+ SELECT t1.a
+ FROM t3 CROSS JOIN t2 CROSS JOIN t1
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.321.desc {
+ SELECT t1.a
+ FROM t3 CROSS JOIN t2 CROSS JOIN t1
+ WHERE t1.a=t2.c AND t2.b=t3.d
+ ORDER BY t1.a DESC;
+} {3 2 1}
+
+finish_test