Method register_catalog

datafusion/core/src/execution/context/mod.rs:1889–1899

Registers a named catalog using a custom `CatalogProvider` so that it can be referenced from SQL statements executed against this context. Returns the [`CatalogProvider`] previously registered for this name, if any

(
        &self,
        name: impl Into<String>,
        catalog: Arc<dyn CatalogProvider>,
    )

    /// Returns the [`CatalogProvider`] previously registered for this
    /// name, if any
    pub fn register_catalog(
        &self,
        name: impl Into<String>,
        catalog: Arc<dyn CatalogProvider>,
    ) -> Option<Arc<dyn CatalogProvider>> {
        let name = name.into();
        self.state
            .read()
            .catalog_list()
            .register_catalog(name, catalog)
    }

    /// Retrieves the list of available catalog names.
    pub fn catalog_names(&self) -> Vec<String> {