diff --git a/reports/key_list.sql b/reports/key_list.sql
new file mode 100644
index 0000000..e69a8cb
--- /dev/null
+++ b/reports/key_list.sql
@@ -0,0 +1,24 @@
+\timing
+
+WITH ok AS (
+    SELECT
+        srce,
+        ok.k,
+        jsonb_typeof(allj->ok.k) typeof,
+        COUNT(*)
+    FROM
+        tps.trans
+        JOIN LATERAL jsonb_object_keys(allj) ok(k) ON TRUE
+    GROUP BY   
+        srce,
+        ok.k,
+        jsonb_typeof(allj->ok.k)
+    ORDER BY 
+        srce
+)
+SELECT
+    srce
+    ,k
+    ,typeof
+FROM
+    ok
\ No newline at end of file