dm_get_all_pks() checks the
dm object for primary keys and
returns the tables and the respective primary key columns.
One or more table names, unquoted, to return primary key information for. If given, primary keys are returned in that order. The default
NULLreturns information for all tables.
These dots are for future extensions and must be empty.
A tibble with the following columns:
column name(s) of primary key, as list of character vectors.