From 3309c698f892a2f1f23f349d3f7c078af5320cdc Mon Sep 17 00:00:00 2001
From: Marty Schoch <marty.schoch@gmail.com>
Date: Mon, 25 Aug 2014 08:55:14 -0400
Subject: [PATCH] fixed Document() behavior ot return nil when doc doesn't
 exist

---
 index/upside_down/upside_down.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/index/upside_down/upside_down.go b/index/upside_down/upside_down.go
index 501489ed..fdca0335 100644
--- a/index/upside_down/upside_down.go
+++ b/index/upside_down/upside_down.go
@@ -541,6 +541,14 @@ func (udc *UpsideDownCouch) DocIdReader(start, end string) (index.DocIdReader, e
 }
 
 func (udc *UpsideDownCouch) Document(id string) (*document.Document, error) {
+	// first hit the back index to confirm doc exists
+	backIndexRow, err := udc.backIndexRowForDoc(id)
+	if err != nil {
+		return nil, err
+	}
+	if backIndexRow == nil {
+		return nil, nil
+	}
 	rv := document.NewDocument(id)
 	storedRow := NewStoredRow(id, 0, []uint64{}, 'x', nil)
 	storedRowScanPrefix := storedRow.ScanPrefixForDoc()