diff --git a/schema/tables/fspr.sql b/schema/tables/fspr.sql
index ea1a48a..17b7a19 100644
--- a/schema/tables/fspr.sql
+++ b/schema/tables/fspr.sql
@@ -4,5 +4,7 @@ CREATE TABLE evt.fspr (
     ,dur tstzrange
 )
 
+COMMENT ON COLUMN evt.fspr.id IS 'fiscal period';
+COMMENT ON COLUMN evt.fspr.dur IS 'duration of period as timestamp range';
 
 CREATE INDEX id_gist ON evt.fspr USING GIST (id);
\ No newline at end of file