| EmbeddedPostgres | Indicates R being run from within Postgres |
| evalPostgresAggregatorInitialization | Parses and evaluates a Postgres R-Aggregator initialization string. |
| names.PostgresTupleRef | Retrieves the field/column names of a Postgres Tuple |
| parsePostgresFunction | Parses an R Constructor from Postgres |
| postgresError | Raise a Postgres error from R |
| setTupleElements | Sets one or more elements within a Postgres trigger record/tuple. |
| tupleTypes | Retrieves the values or the types of a Postgres Tuple's elements. |
| tupleValues | Retrieves the values or the types of a Postgres Tuple's elements. |
| [.PostgresTupleRef | Extracts one or more elements of a Postgres Tuple, by index or name. |