org_node_closure (derived org tree materialization)
org_nodes (program)
org_nodes (customer with config)
config_definitions
Note:config_definitions (modern) can be lower than the configurable column count in Customer.SystemParameters (legacy). The migration only emits a config_definitions row for a key when at least one customer had a non-null value for that column. Columns that were NULL for every customer in legacy were dropped — they don't appear in config_definitions and aren't keys in any customer's org_nodes.config JSONB. If a future need arises to use one of those keys, it can be added directly to JSONB on any node (and registered in config_definitions) without any database schema change.