ClickHouse/tests/queries/1_stateful/00049_max_string_if.sql

SELECT CounterID, count(), maxIf(SearchPhrase, notEmpty(SearchPhrase)) FROM test.hits GROUP BY CounterID ORDER BY count() DESC LIMIT 20;
SELECT CounterID, count(), maxIf(SearchPhrase, notEmpty(SearchPhrase)) FROM test.hits GROUP BY CounterID ORDER BY count() DESC LIMIT 20 SETTINGS optimize_aggregation_in_order = 1