Fix buffer overwrite when emitting TIME(0) datatype

Author: bmharper

types.go

@@ -915,8 +915,10 @@ func decodeTime(scale uint8, buf []byte) time.Time {
 
 func encodeTime(hour, minute, second, ns, scale int) (buf []byte) {
 	seconds := hour*3600 + minute*60 + second
-	buf = make([]byte, calcTimeSize(scale))
+	timeSize := calcTimeSize(scale)
+	buf = make([]byte, timeSize+2)
 	encodeTimeInt(seconds, ns, scale, buf)
+	buf = buf[:timeSize]
 	return
 }