From 074bcd7139309f003b76859e91d8c8dd1576d740 Mon Sep 17 00:00:00 2001
From: Manni Wood <manni.lee.wood@gmail.com>
Date: Sat, 3 Sep 2016 18:30:36 -0400
Subject: [PATCH] Adds docs for Oid type.

---
 messages.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/messages.go b/messages.go
index c158d5d2..fec34dbb 100644
--- a/messages.go
+++ b/messages.go
@@ -53,6 +53,10 @@ func (s *startupMessage) Bytes() (buf []byte) {
 	return buf
 }
 
+// Oid (Object Identifier Type) is, according to https://www.postgresql.org/docs/current/static/datatype-oid.html,
+// used internally by PostgreSQL as a primary key for various system tables. It is currently implemented
+// as an unsigned four-byte integer. Its definition can be found in src/include/postgres_ext.h
+// in the PostgreSQL sources.
 type Oid uint32
 
 type FieldDescription struct {