# List the engine's catalogue Control / params A variant of [Set parameters](https://meridian.online/operations/set-parameters). List what the engine or project holds, such as functions, keywords, extensions, plugins or stored jobs, as a table. Page: ## Status Not built yet. arcform does not do this yet; it would live in how a Protocol runs. [Its place on the roadmap](https://meridian.online/roadmap#set-parameters) ## What other tools call it Meridian's classification; an independent blind rating agreed on 95.7% of 324 rows (variant, version 3). - DuckDB: `duckdb_extensions` (read 2026-09-27) - DuckDB: `duckdb_functions` (read 2026-09-27) - DuckDB: `duckdb_keywords` (read 2026-09-27) - DuckDB: `duckdb_optimizers` (read 2026-09-27) - DuckDB: `icu_calendar_names` (read 2026-09-27) - DuckDB: `pg_timezone_names` (read 2026-09-27) - DuckDB: `pragma_collations` (read 2026-09-27) - EasyMorph: [`Project metadata`](https://help.easymorph.com/doku.php?id=transformations:projectmetadata) (read 2026-09-27) - Apache Hop: [`Metadata input`](https://hop.apache.org/manual/latest/pipeline/transforms/metadata-input.html) (read 2026-09-27) - Apache Hop: [`Plugin Catalog`](https://hop.apache.org/manual/next/pipeline/transforms/plugincatalog.html) (read 2026-09-27) - Pentaho Data Integration: [`Get repository names`](https://docs.pentaho.com/pdia-data-integration/9.3-data-integration/pdi-transformation-steps-reference-overview) (read 2026-09-27)