ydb/yt/yql/tests/sql/suites/produce/discard_process_with_lambda.sql

/* syntax version 1 */
/* postgres can not */
$udf = YQL::@@(lambda '(x) 
(FlatMap x 
   (lambda '(y) (AsList y y))
))@@;

discard process plato.Input0 using $udf(TableRows());