From aa5f688407a72d6fe0c0fe13d934b7eecf70069b Mon Sep 17 00:00:00 2001
From: Will White <will@mapbox.com>
Date: Sat, 13 Dec 2014 11:13:13 -0500
Subject: [PATCH] Query from `map` table with more than one index.

mbtiles files often have two indexes on the map table. This doesn't
impact our ability to do an optimized query against it for ZXYStream.
---
 lib/zxystream.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/zxystream.js b/lib/zxystream.js
index 011ef14..4d1d44f 100644
--- a/lib/zxystream.js
+++ b/lib/zxystream.js
@@ -33,7 +33,7 @@ ZXYStream.prototype._read = function() {
     if (!stream.table) {
         return this.source._db.get("select count(1) as count from sqlite_master where type = 'index' and tbl_name = 'map';", function(err, row) {
             if (err) return stream.emit('error', err);
-            stream.table = row.count === 1 ? 'map' : 'tiles';
+            stream.table = row.count >= 1 ? 'map' : 'tiles';
             return stream._read();
         });
     }