(PDB-4512) Switch catalog-inputs to an inner join against certnames
(PDB-4512) Switch catalog-inputs to an inner join against certnames

So that the drop-unused-joins optimizer has an opportunity to avoid
the expense when you only extract fields that are in the certnames
table.

puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb