=========================================================================
Deploy 1 (EXPAND): additive column + backfill, Stage 1 code untouched
=========================================================================
captured: 2026-09-16T19:20:56.676919361Z


-- schema before Deploy 1 --
COLUMN_NAME
-----------
ID         
NAME       
EMAIL      
CREATED_AT 
(4 rows)

-- schema after Deploy 1 (email_address added) --
COLUMN_NAME  
-------------
ID           
NAME         
EMAIL        
CREATED_AT   
EMAIL_ADDRESS
(5 rows)

-- Ada's row was backfilled by the migration itself --
NAME         | EMAIL            | EMAIL_ADDRESS   
-------------+------------------+-----------------
Ada Lovelace | ada@example.test | ada@example.test
(1 row)

-- Stage 1's original INSERT still works, unmodified, after the migration --
NAME         | EMAIL              | EMAIL_ADDRESS
-------------+--------------------+--------------
Grace Hopper | grace@example.test | NULL         
(1 row)