A new .names parameter was added to dm_from_con() in v1.0.6 (#1790) - but it's currently ignored when learn_keys = TRUE and the subsequent key-querying is successful.

That's because dm_from_con() returns early if key-querying, via dm_learn_from_db(), succeeds.

Helpfully, dm_learn_from_db() already accepts a names_pattern argument, which is used to format the table names with {glue} in the same way as elsewhere - but we don't pass .names through to it in dm_from_con():

For what it's worth, if key-querying fails, then later in dm_from_con() we do pass .names through to get_src_tbl_names():