instance method data_sources

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb, line 84
        def data_sources # :nodoc
          select_values(<<-SQL, 'SCHEMA')
            SELECT c.relname
            FROM pg_class c
            LEFT JOIN pg_namespace n ON n.oid = c.relnamespace
            WHERE c.relkind IN ('r', 'v','m') -- (r)elation/table, (v)iew, (m)aterialized view
            AND n.nspname = ANY (current_schemas(false))
          SQL
        end