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17 lines
699 B
SQL
17 lines
699 B
SQL
DROP TABLE IF EXISTS agg_over_nullable;
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CREATE TABLE agg_over_nullable (
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partition Date,
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timestamp DateTime,
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user_id Nullable(UInt32),
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description Nullable(String)
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) ENGINE = MergeTree(partition, timestamp, 8192);
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INSERT INTO agg_over_nullable(partition, timestamp, user_id, description) VALUES(now(), now(), 1, 'ss');
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INSERT INTO agg_over_nullable(partition, timestamp, user_id, description) VALUES(now(), now(), 1, NULL);
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INSERT INTO agg_over_nullable(partition, timestamp, user_id, description) VALUES(now(), now(), 1, 'aa');
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SELECT arraySort(groupUniqArray(description)) FROM agg_over_nullable;
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SELECT arraySort(topK(3)(description)) FROM agg_over_nullable;
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DROP TABLE agg_over_nullable;
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