fn fetch_schema_info(
session: &Arc<SessionImpl>,
table_name: ObjectName,
) -> Result<(Arc<TableCatalog>, Arc<SourceCatalog>), RwError>
fn fetch_schema_info(
session: &Arc<SessionImpl>,
table_name: ObjectName,
) -> Result<(Arc<TableCatalog>, Arc<SourceCatalog>), RwError>