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18 lines
1.2 KiB
SQL
18 lines
1.2 KiB
SQL
DROP TABLE IF EXISTS test.hits_snippet;
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CREATE TABLE test.hits_snippet(EventTime DateTime('Europe/Moscow'), EventDate Date, CounterID UInt32, UserID UInt64, URL String, Referer String) ENGINE = MergeTree(EventDate, intHash32(UserID), (CounterID, EventDate, intHash32(UserID), EventTime), 8192);
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SET min_insert_block_size_rows = 0, min_insert_block_size_bytes = 0;
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SET max_block_size = 4096;
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INSERT INTO test.hits_snippet(EventTime, EventDate, CounterID, UserID, URL, Referer) SELECT EventTime, EventDate, CounterID, UserID, URL, Referer FROM test.hits WHERE EventDate = toDate('2014-03-18') ORDER BY EventTime, EventDate, CounterID, UserID, URL, Referer ASC LIMIT 50;
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INSERT INTO test.hits_snippet(EventTime, EventDate, CounterID, UserID, URL, Referer) SELECT EventTime, EventDate, CounterID, UserID, URL, Referer FROM test.hits WHERE EventDate = toDate('2014-03-19') ORDER BY EventTime, EventDate, CounterID, UserID, URL, Referer ASC LIMIT 50;
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SET min_bytes_to_use_direct_io = 8192;
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OPTIMIZE TABLE test.hits_snippet;
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SELECT EventTime, EventDate, CounterID, UserID, URL, Referer FROM test.hits_snippet ORDER BY EventTime, EventDate, CounterID, UserID, URL, Referer ASC;
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DROP TABLE test.hits_snippet;
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