From 9b8ad5cd2926a9f24487ea9479cebe651613a3a0 Mon Sep 17 00:00:00 2001
From: kberket <kberket@lbl.gov>
Date: Thu, 18 Jan 2024 14:51:18 -0500
Subject: [PATCH] fix groupby documentation

---
 src/maggma/stores/open_data.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/maggma/stores/open_data.py b/src/maggma/stores/open_data.py
index 89702ece7..5104424d0 100644
--- a/src/maggma/stores/open_data.py
+++ b/src/maggma/stores/open_data.py
@@ -275,7 +275,9 @@ def groupby(
 
         Args:
             keys: fields to group documents
-            criteria: PyMongo filter for documents to search in
+            criteria: the value of the `query` key will be used as the
+                Pandas string expression to query with;
+                all other data will be ignored
             properties: properties to return in grouped documents
             sort: Dictionary of sort order for fields. Keys are field names and
                 values are 1 for ascending or -1 for descending.