--- a/src/relpipe-tr-sql.cpp	Sat Oct 26 22:32:36 2019 +0200
+++ b/src/relpipe-tr-sql.cpp	Tue Oct 29 00:23:56 2019 +0100
@@ -54,6 +54,7 @@
 
 		if (std::regex_match(cli.programName(), std::wregex(L"^(.*/)?relpipe-in-sql$"))) {
 			// relpipe-in-sql:
+			if (cli.arguments().size() == 0) configuration.copyRelations.push_back({L".*", L"", false});
 			std::shared_ptr<writer::RelationalWriter> writer(writer::Factory::create(std::cout));
 			configuration.sqlBeforeRelational = isatty(fileno(stdin)) ? nullptr : &std::wcin;
 			configuration.sqlAfterRelational = nullptr;