Options for Postgres FDW

I´m trying to insert/update some tables using FDW. I´m having problems when I
want to use default values and triggers.

For columns with default values, if I drop that column on foreign table
definition is fine for inserts but I cannot use that column for
updates/selects because it doesn´t exist on foreign table definition.

For triggers, there is a way to define search_path for that
server/connection ? Because suppose I´ve used "import foreign schema
CustomerSchema", when I do some insert/update on any table of this schema,
if that table calls a trigger which needs another table, that trigger
doesn´t sees that table because it´s using pg_catalog schema. The only way
to solve this is defining search_path when starting all triggers ?

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