sp_BlitzIndex: skip null-ratio warning for empty/small tables

Agent-Logs-Url: https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/sessions/1db5857d-53c2-42f5-a640-aa590e0a2e2a

Co-authored-by: BrentOzar <245462+BrentOzar@users.noreply.github.com>

Author: Copilot

sp_BlitzIndex.sql

@@ -5342,6 +5342,8 @@ BEGIN
                         WHERE    i.index_id IN (1,0)
                             AND cc.non_nullable_columns < 2
                             AND cc.total_columns > 3
+                            AND ip.total_rows > 0
+                            AND ip.total_reserved_MB >= CASE WHEN (@GetAllDatabases = 1 OR @Mode = 0) THEN @ThresholdMB ELSE ip.total_reserved_MB END
                         ORDER BY i.db_schema_object_name DESC OPTION    ( RECOMPILE );
 
             RAISERROR(N'check_id 26: Wide tables (35+ cols or > 2000 non-LOB bytes).', 0,1) WITH NOWAIT;