From 988b630448ba6ed5673900ba495a0cbef3bf2887 Mon Sep 17 00:00:00 2001
From: Tal Neiman <33829179+talIguaz@users.noreply.github.com>
Date: Wed, 25 Sep 2019 14:25:58 +0300
Subject: [PATCH] fix timestamp default value (#290)

---
 column.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/column.go b/column.go
index a025a9c5..ade6a95a 100644
--- a/column.go
+++ b/column.go
@@ -356,8 +356,13 @@ func NewSliceColumn(name string, data interface{}) (Column, error) {
 		times := data.([]time.Time)
 		msg.Dtype = pb.DType_TIME
 		msg.Times = make([]int64, len(times))
+		nilTime := time.Time{}
 		for i, t := range times {
-			msg.Times[i] = t.UnixNano()
+			if t == nilTime {
+				msg.Times[i] = 0
+			} else {
+				msg.Times[i] = t.UnixNano()
+			}
 		}
 	default:
 		return nil, fmt.Errorf("unknown data type %T", data)