input.Makefile: Staging tables installation: sql/install: Provide the datasource's schema to the script in :schema, so it can refer to its own elements explicitly when it's not possible to rely on the search_path. This is the case for functions that have the same signature as (and are intended to replace) a pg_catalog function, because the pg_catalog function will be used in preference to the datasource function regardless of the search_path.
input.Makefile: Staging tables installation: sql/install: Provide the datasource's schema to the script in :schema, so it can refer to its own elements explicitly when it's not possible to rely on the search_path. This is the case for functions that have the same signature as (and are intended to replace) a pg_catalog function, because the pg_catalog function will be used in preference to the datasource function regardless of the search_path.