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37 lines
1.6 KiB
SQL
37 lines
1.6 KiB
SQL
DROP TABLE IF EXISTS test.partitions;
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CREATE TABLE test.partitions (EventDate Date, CounterID UInt32) ENGINE = MergeTree(EventDate, CounterID, 8192);
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INSERT INTO test.partitions SELECT EventDate + UserID % 365 AS EventDate, CounterID FROM test.hits WHERE CounterID = 1704509;
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SELECT count() FROM test.partitions;
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SELECT count() FROM test.partitions WHERE EventDate >= toDate('2015-01-01') AND EventDate < toDate('2015-02-01');
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SELECT count() FROM test.partitions WHERE EventDate < toDate('2015-01-01') OR EventDate >= toDate('2015-02-01');
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ALTER TABLE test.partitions DETACH PARTITION 201501;
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SELECT count() FROM test.partitions;
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SELECT count() FROM test.partitions WHERE EventDate >= toDate('2015-01-01') AND EventDate < toDate('2015-02-01');
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SELECT count() FROM test.partitions WHERE EventDate < toDate('2015-01-01') OR EventDate >= toDate('2015-02-01');
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ALTER TABLE test.partitions ATTACH PARTITION 201501;
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SELECT count() FROM test.partitions;
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SELECT count() FROM test.partitions WHERE EventDate >= toDate('2015-01-01') AND EventDate < toDate('2015-02-01');
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SELECT count() FROM test.partitions WHERE EventDate < toDate('2015-01-01') OR EventDate >= toDate('2015-02-01');
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ALTER TABLE test.partitions DETACH PARTITION 201403;
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SELECT count() FROM test.partitions;
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INSERT INTO test.partitions SELECT EventDate + UserID % 365 AS EventDate, CounterID FROM test.hits WHERE CounterID = 1704509 AND toStartOfMonth(EventDate) = toDate('2014-03-01');
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SELECT count() FROM test.partitions;
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ALTER TABLE test.partitions ATTACH PARTITION 201403;
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SELECT count() FROM test.partitions;
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DROP TABLE test.partitions;
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