Add objects to the catalog (idempotent)

Rows whose key is already catalogued are skipped - same key, same content, nothing to store. A key present with a DIFFERENT content_hash or enc is an error: two contents may never share a key.

Usage

asset_catalog_add(catalog, new)

Arguments

catalog

the current catalog (zero rows for a new store)

new

rows to add, same columns

Value

the union; the keys actually added are in attr(, "added")