Fail unless every core table is unique on its primary key

The release gate that was missing when v2026.08.25 shipped sample with 4,855 keys twice: the validate chunk only warned on ship/cruise. Primary keys come from core_relationships().

Usage

check_core_pk_unique(con, tables)

Arguments

con

DuckDB connection holding the assembled release

tables

core tables to check (those present in con are checked)

Value

invisibly, a data.frame table, pk, n_rows, n_dup