Query Parameters
Available options: 
OBJECT_TYPE_UNSPECIFIED, DATABASE, SCHEMA, TABLE, VIEW, MATERIALIZED_VIEW, FUNCTION, PROCEDURE, SEQUENCE It's empty for DATABASE.
It's empty for DATABASE and SCHEMA.
The database metadata name.
Format: instances/{instance}/databases/{database}/metadata
The character_set is the character set of a database.
The collation is the collation of a database.
The owner of the database.
The search_path is the search path of a PostgreSQL database.
Response
OK

