[sql] Import SQLite 3.17.0.

third_party/sqlite/src/test/vtab6.test

Index: third_party/sqlite/src/test/vtab6.test
diff --git a/third_party/sqlite/src/test/vtab6.test b/third_party/sqlite/src/test/vtab6.test
index f8e0935a2835976da9d79fe62285c603466027ed..f4504b017ddde64270f6f1e89704dbaddd389ff4 100644
--- a/third_party/sqlite/src/test/vtab6.test
+++ b/third_party/sqlite/src/test/vtab6.test
@@ -566,12 +566,12 @@ do_test vtab6-11.4.1 {
   catchsql {
     SELECT a, b, c FROM ab NATURAL JOIN bc;
   }
-} {1 {table ab: xBestIndex returned an invalid plan}}
+} {1 {ab.xBestIndex malfunction}}
 do_test vtab6-11.4.2 {
   catchsql {
     SELECT a, b, c FROM bc NATURAL JOIN ab;
   }
-} {1 {table bc: xBestIndex returned an invalid plan}}
+} {1 {bc.xBestIndex malfunction}}
 
 unset ::echo_module_ignore_usable