[sql] Import reference version of SQLite 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/test/sort5.test

+# 2014 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. 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix sort5
+
+
+#-------------------------------------------------------------------------
+# Verify that sorting works with a version 1 sqlite3_io_methods structure.
+#
+testvfs tvfs -iversion 1 -default true
+reset_db
+do_execsql_test 1.0 {
+  PRAGMA mmap_size = 10000000;
+  PRAGMA cache_size = 10;
+  CREATE TABLE t1(a, b);
+} {0}
+
+do_test 1.1 {
+  execsql BEGIN
+  for {set i 0} {$i < 2000} {incr i} {
+    execsql { INSERT INTO t1 VALUES($i, randomblob(2000)) }
+  }
+  execsql COMMIT
+} {}
+
+do_execsql_test 1.2 {
+  CREATE INDEX i1 ON t1(b);
+}
+
+db close
+tvfs delete
+finish_test
+