[sql] Import reference version of SQLite 3.17..

third_party/sqlite/sqlite-src-3170000/test/orderby8.test

+# 2015-01-19
+#
+# 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 ORDER BY and LIMIT on tables with
+# many columns.
+#
+# These tests verify that ticket [f97c4637102a3ae72b7911167e1d4da12ce60722]
+# from 2015-01-19 has been fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderby8
+
+do_test 1.0 {
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1(x) VALUES(1),(5),(9),(7),(3),(2),(4),(6),(8);
+  }
+  set ::result_set "x"
+} {x}
+for {set i 1} {$i<200} {incr i} {
+  append ::result_set ", x+$i"
+  do_test 1.$i {
+    set res {}
+    db eval "SELECT $::result_set FROM t1 ORDER BY x LIMIT -1" {
+      lappend res $x
+    }
+    set res
+  } {1 2 3 4 5 6 7 8 9}
+}
+
+finish_test