trying to rework database migrations

migrations.old/20260119000001_add_execution_notify_trigger.sql

@@ -0,0 +1,43 @@
+-- Migration: Add NOTIFY trigger for execution updates
+-- This enables real-time SSE streaming of execution status changes
+
+-- Function to send notifications on execution changes
+CREATE OR REPLACE FUNCTION notify_execution_change()
+RETURNS TRIGGER AS $$
+DECLARE
+    payload JSONB;
+BEGIN
+    -- Build JSON payload with execution details
+    payload := jsonb_build_object(
+        'entity_type', 'execution',
+        'entity_id', NEW.id,
+        'timestamp', NOW(),
+        'data', jsonb_build_object(
+            'id', NEW.id,
+            'status', NEW.status,
+            'action_id', NEW.action,
+            'action_ref', NEW.action_ref,
+            'result', NEW.result,
+            'created', NEW.created,
+            'updated', NEW.updated
+        )
+    );
+
+    -- Send notification to the attune_notifications channel
+    PERFORM pg_notify('attune_notifications', payload::text);
+
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+-- Trigger to send pg_notify on execution insert or update
+CREATE TRIGGER notify_execution_change
+    AFTER INSERT OR UPDATE ON execution
+    FOR EACH ROW
+    EXECUTE FUNCTION notify_execution_change();
+
+-- Add comment
+COMMENT ON FUNCTION notify_execution_change() IS
+    'Sends PostgreSQL NOTIFY for execution changes to enable real-time SSE streaming';
+COMMENT ON TRIGGER notify_execution_change ON execution IS
+    'Broadcasts execution changes via pg_notify for SSE clients';