| as_duckplyr_df | Convert to a duckplyr data frame |
| duckdb_from_file | TODO |
| duckdb_rel_from_df | DuckDB relational backend |
| duckplyr_df_from_file | TODO |
| expr | Relational expressions |
| is_duckplyr_df | Class predicate for duckplyr data frames |
| methods_overwrite | Forward all dplyr methods to duckplyr |
| methods_restore | Forward all dplyr methods to duckplyr |
| new_relational | Relational implementer's interface |
| new_relexpr | Relational expressions |
| relational | Relational implementer's interface |
| relexpr_constant | Relational expressions |
| relexpr_function | Relational expressions |
| relexpr_reference | Relational expressions |
| relexpr_set_alias | Relational expressions |
| relexpr_window | Relational expressions |
| rel_aggregate | Relational implementer's interface |
| rel_alias | Relational implementer's interface |
| rel_distinct | Relational implementer's interface |
| rel_explain | Relational implementer's interface |
| rel_filter | Relational implementer's interface |
| rel_from_df | Data frame relational backend |
| rel_join | Relational implementer's interface |
| rel_limit | Relational implementer's interface |
| rel_names | Relational implementer's interface |
| rel_order | Relational implementer's interface |
| rel_project | Relational implementer's interface |
| rel_set_alias | Relational implementer's interface |
| rel_set_diff | Relational implementer's interface |
| rel_set_intersect | Relational implementer's interface |
| rel_set_symdiff | Relational implementer's interface |
| rel_to_df | Relational implementer's interface |
| rel_union_all | Relational implementer's interface |
| stats_show | Show stats |
| wrap_df | TODO |
| wrap_integer | TODO |