From 868965f161e5633f376c351807bce9f7f2449d23 Mon Sep 17 00:00:00 2001
From: Noah Treuhaft <noah.treuhaft@gmail.com>
Date: Wed, 14 Dec 2022 14:50:32 -0500
Subject: [PATCH] add clarifying dictionary comment

---
 zio/arrowio/writer.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/zio/arrowio/writer.go b/zio/arrowio/writer.go
index dcf4241439..cc66c2af40 100644
--- a/zio/arrowio/writer.go
+++ b/zio/arrowio/writer.go
@@ -31,7 +31,9 @@ var (
 
 // Writer is a zio.Writer for the Arrow IPC stream format.  Given Zed values
 // with appropriately named types (see the newArrowDataType implementation), it
-// can write all Arrow types except dictionaries and sparse unions.
+// can write all Arrow types except dictionaries and sparse unions.  (Although
+// dictionaries are not part of the Zed data model, write support could be added
+// using a named type.)
 type Writer struct {
 	w                io.WriteCloser
 	writer           *ipc.Writer