From 03720fdb69e65e8896ab4062a924db9d4cf96e18 Mon Sep 17 00:00:00 2001
From: Daniele Varrazzo <daniele.varrazzo@gmail.com>
Date: Mon, 11 Jan 2021 15:52:55 +0100
Subject: [PATCH] Added comment to remember what the array structure is

---
 psycopg3/psycopg3/types/array.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/psycopg3/psycopg3/types/array.py b/psycopg3/psycopg3/types/array.py
index d9b6fa616..e7bda5d79 100644
--- a/psycopg3/psycopg3/types/array.py
+++ b/psycopg3/psycopg3/types/array.py
@@ -226,8 +226,8 @@ class ArrayLoader(BaseArrayLoader):
     _re_unescape = re.compile(br"\\(.)")
 
 
-_struct_head = struct.Struct("!III")
-_struct_dim = struct.Struct("!II")
+_struct_head = struct.Struct("!III")  # ndims, hasnull, elem oid
+_struct_dim = struct.Struct("!II")  # dim, lower bound
 _struct_len = struct.Struct("!i")
 
 
-- 
2.47.2