I mentioned Steampipe [1] above, it has an open source OCI plugin [1] to query resources (no support for write operations). It's a Postgres FDW under the hood,

I mentioned Steampipe [1] above, it has an open source OCI plugin [1] to query resources (no support for write operations). It's a Postgres FDW under the hood, and uses subset of Postgres types (bool, bigint, double, text, inet, cidr, timestamptz and jsonb) along with their standard operators. This approach has proven very simple and effective for us. 1 - https://steampipe.io https://steampipe.io 2 - https://github.com/turbot/steampipe-plugin-oci https://github.com/turbot/steampipe-plugin-oci