Demo for query storing

Change-Id: I947bcac841992c3f6cfd01ab337c265b0d01cb70
diff --git a/node_modules/readable-stream/writable.js b/node_modules/readable-stream/writable.js
new file mode 100644
index 0000000..3211a6f
--- /dev/null
+++ b/node_modules/readable-stream/writable.js
@@ -0,0 +1,8 @@
+var Stream = require("stream")
+var Writable = require("./lib/_stream_writable.js")
+
+if (process.env.READABLE_STREAM === 'disable') {
+  module.exports = Stream && Stream.Writable || Writable
+} else {
+  module.exports = Writable
+}