Method query_read_only

graphlite/src/catalog/manager.rs:106–120

Execute a read-only query on a catalog This method only accepts query operations and uses immutable access, allowing for concurrent read operations. # Arguments `catalog_name` - Name of the catalog to query `query_type` - Type of query to execute `params` - Query parameters # Returns `Ok(CatalogResponse)` with the query result `Err(CatalogError::CatalogNotFound)` if catalog doesn't exist `Err(C

(
        &self,
        catalog_name: &str,
        query_type: crate::catalog::operations::QueryType,
        params: serde_json::Value,
    )

    /// * `Err(CatalogError::CatalogNotFound)` if catalog doesn't exist
    /// * `Err(CatalogError)` if the query fails
    pub fn query_read_only(
        &self,
        catalog_name: &str,
        query_type: crate::catalog::operations::QueryType,
        params: serde_json::Value,
    ) -> CatalogResult<CatalogResponse> {
        use crate::catalog::operations::CatalogOperation;

        let operation = CatalogOperation::Query { query_type, params };

        self.registry
            .get(catalog_name)
            .ok_or_else(|| CatalogError::CatalogNotFound(catalog_name.to_string()))?
            .execute_read_only(operation)
    }

    /// Get catalog metadata without knowing the specific type
    ///