Project loaded object rows for the read path. Validates the column set against the FIRST row
only: every row in the array is the same entity, so one is proof, and an empty array proves
nothing and needs no check — a connection with no catalog rows is the ordinary pre-discovery
state, not a schema problem.
Project loaded object rows for the read path. Validates the column set against the FIRST row only: every row in the array is the same entity, so one is proof, and an empty array proves nothing and needs no check — a connection with no catalog rows is the ordinary pre-discovery state, not a schema problem.