From f7504fb5eb1d3a740e581d418640133ffd281a2c Mon Sep 17 00:00:00 2001
From: Cameron Sparr <cameronsparr@gmail.com>
Date: Mon, 19 Oct 2015 18:43:40 -0600
Subject: [PATCH] InfluxDB does not accept uint64, so cast them down to int64

Fixes #290
---
 accumulator.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/accumulator.go b/accumulator.go
index f7fb7c1e421d0..d1f8adf614e56 100644
--- a/accumulator.go
+++ b/accumulator.go
@@ -134,6 +134,16 @@ func (bp *BatchPoints) AddFields(
 	bp.Lock()
 	defer bp.Unlock()
 
+	// InfluxDB does not support writing uint64
+	for k, v := range fields {
+		switch val := v.(type) {
+		case uint64:
+			if val < uint64(9223372036854775808) {
+				fields[k] = int64(val)
+			}
+		}
+	}
+
 	measurement = bp.Prefix + measurement
 
 	if bp.Config != nil {