> ## Documentation Index
> Fetch the complete documentation index at: https://schemabrain.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# describe_table

> Full structural + semantic dump of one table — every column, FK graph, descriptions.

<Note>
  **Layer:** Physical schema
</Note>

Full structural and semantic dump of one table. Includes every column
(data type, nullability, default, primary-key flag, LLM description), plus
all foreign keys with target tables already pre-joined as `schema.table`.

Pass `qualified_name` as `schema.name` — e.g. `"public.orders"`. A bare
`"orders"` raises a clear error pointing you at `find_relevant_tables` to
find the schema.