Get table function in ascii lowercase

Author: osipovartem

datafusion/sql/src/relation/mod.rs

@@ -438,7 +438,8 @@ impl<S: ContextProvider> SqlToRel<'_, S> {
                     .context_provider
                     .get_table_function_source(tbl_func_ref.table(), func_args)?;
                 let plan =
-                    LogicalPlanBuilder::scan(tbl_func_ref.table(), provider, None)?.build()?;
+                    LogicalPlanBuilder::scan(tbl_func_ref.table(), provider, None)?
+                        .build()?;
                 (plan, alias)
             }
             // @todo: Support TableFactory::TableFunction