From ec8f7c4204372bda4329d4e6d8952c913863e656 Mon Sep 17 00:00:00 2001
From: Jack Christensen <jack@jackchristensen.com>
Date: Sat, 5 Mar 2022 08:56:41 -0600
Subject: [PATCH] Add comment for FormatCodeForOID

---
 pgtype/pgtype.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pgtype/pgtype.go b/pgtype/pgtype.go
index 8c743163..5c9e5796 100644
--- a/pgtype/pgtype.go
+++ b/pgtype/pgtype.go
@@ -422,6 +422,8 @@ func (m *Map) TypeForValue(v interface{}) (*Type, bool) {
 	return dt, ok
 }
 
+// FormatCodeForOID returns the preferred format code for type oid. If the type is not registered it returns the text
+// format code.
 func (m *Map) FormatCodeForOID(oid uint32) int16 {
 	fc, ok := m.oidToFormatCode[oid]
 	if ok {