connection_pool doesn't allow setting metadata mode, so there's no way to retrieve metadata strings from a pooled connection (the static interface still works, since it bypasses metadata mode).
Having a per-connection metadata mode is error prone, and a leftover from the time when we didn't have the universal execute and start_execution functions. Consider a per-operation metadata mode, deprecating meta_mode and set_meta_mode from connection, and removing the latter functions from any_connection.
connection_pooldoesn't allow setting metadata mode, so there's no way to retrieve metadata strings from a pooled connection (the static interface still works, since it bypasses metadata mode).Having a per-connection metadata mode is error prone, and a leftover from the time when we didn't have the universal
executeandstart_executionfunctions. Consider a per-operation metadata mode, deprecatingmeta_modeandset_meta_modefromconnection, and removing the latter functions fromany_connection.