An extend (PLAN ยง11.7): its columns, each {name, code, lambda}, the
lambda left out until the code is checked, and the last typing the engine
gave, typed: {signature, types}, so a loaded cube has its schema at once;
it is typed again on load. Every column is read before one with a key this
version doesn't know makes the node an Unknown node.
An extend (PLAN ยง11.7): its columns, each
{name, code, lambda}, the lambda left out until the code is checked, and the last typing the engine gave,typed: {signature, types}, so a loaded cube has its schema at once; it is typed again on load. Every column is read before one with a key this version doesn't know makes the node an Unknown node.