From 7a6bb477e646acd8d48bcafdab01e5a51ee054ee Mon Sep 17 00:00:00 2001
From: Kris Powell <kris.powell@tidetech.org>
Date: Wed, 19 Nov 2025 10:51:47 +1100
Subject: [PATCH] Add datetime: null when an item has start_datetime and
 end_datetime but no datetime.

---
 src/pgstac/sql/003a_items.sql | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/pgstac/sql/003a_items.sql b/src/pgstac/sql/003a_items.sql
index 88924d17..2b1cf217 100644
--- a/src/pgstac/sql/003a_items.sql
+++ b/src/pgstac/sql/003a_items.sql
@@ -145,6 +145,12 @@ BEGIN
         fields
     );
 
+    IF (output->'properties' ? 'start_datetime')
+    AND (output->'properties' ? 'end_datetime')
+    AND NOT (output->'properties' ? 'datetime') THEN
+        output := jsonb_set(output, '{properties,datetime}', 'null'::jsonb);
+    END IF;
+
     RETURN output;
 END;
 $$ LANGUAGE PLPGSQL STABLE PARALLEL SAFE;