ClickHouse/tests/queries/0_stateless/00046_stored_aggregates_simple.sql

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DROP TABLE IF EXISTS stored_aggregates;
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CREATE TABLE stored_aggregates
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(
d Date,
Uniq AggregateFunction(uniq, UInt64)
)
ENGINE = AggregatingMergeTree(d, d, 8192);
INSERT INTO stored_aggregates
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SELECT
toDate('2014-06-01') AS d,
uniqState(number) AS Uniq
FROM
(
SELECT * FROM system.numbers LIMIT 1000
);
SELECT uniqMerge(Uniq) FROM stored_aggregates;
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DROP TABLE stored_aggregates;