Method table_function

datafusion/core/src/execution/context/mod.rs:1987–1994

Retrieves a [`TableFunction`] reference by name. Returns an error if no table function has been registered with the provided name. [`register_udtf`]: SessionContext::register_udtf

(&self, name: &str)

    ///
    /// [`register_udtf`]: SessionContext::register_udtf
    pub fn table_function(&self, name: &str) -> Result<Arc<TableFunction>> {
        self.state
            .read()
            .table_functions()
            .get(name)
            .cloned()
            .ok_or_else(|| plan_datafusion_err!("Table function '{name}' not found"))
    }

    /// Return a [`TableProvider`] for the specified table.
    pub async fn table_provider(