ClickHouse/dbms/tests/queries/1_stateful/00031_array_enumerate_uniq.sql

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SELECT UserID, arrayEnumerateUniq(groupArray(SearchPhrase)) AS arr
FROM
(
SELECT UserID, SearchPhrase
FROM test.hits
WHERE CounterID = 731962 AND UserID IN
(
SELECT UserID
FROM test.hits
WHERE notEmpty(SearchPhrase) AND CounterID = 731962
GROUP BY UserID
HAVING count() > 1
)
ORDER BY UserID, WatchID
)
WHERE notEmpty(SearchPhrase)
GROUP BY UserID
HAVING length(arr) > 1
ORDER BY UserID
LIMIT 20