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109 lines
11 KiB
SQL
109 lines
11 KiB
SQL
SELECT count() FROM hits_10m;
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SELECT count() FROM hits_10m WHERE AdvEngineID != 0;
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SELECT sum(AdvEngineID), count(), avg(ResolutionWidth) FROM hits_10m ;
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SELECT sum(UserID) FROM hits_10m ;
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SELECT uniq(UserID) FROM hits_10m ;
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SELECT uniq(SearchPhrase) FROM hits_10m ;
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SELECT min(EventDate), max(EventDate) FROM hits_10m ;
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SELECT AdvEngineID, count() FROM hits_10m WHERE AdvEngineID != 0 GROUP BY AdvEngineID ORDER BY count() DESC;
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-- мощная фильтрация. После фильтрации почти ничего не остаётся, но делаем ещё агрегацию.;
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SELECT RegionID, uniq(UserID) AS u FROM hits_10m GROUP BY RegionID ORDER BY u DESC LIMIT 10;
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-- агрегация, среднее количество ключей.;
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SELECT RegionID, sum(AdvEngineID), count() AS c, avg(ResolutionWidth), uniq(UserID) FROM hits_10m GROUP BY RegionID ORDER BY c DESC LIMIT 10;
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-- агрегация, среднее количество ключей, несколько агрегатных функций.;
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SELECT MobilePhoneModel, uniq(UserID) AS u FROM hits_10m WHERE MobilePhoneModel != '' GROUP BY MobilePhoneModel ORDER BY u DESC LIMIT 10;
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-- мощная фильтрация по строкам, затем агрегация по строкам.;
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SELECT MobilePhone, MobilePhoneModel, uniq(UserID) AS u FROM hits_10m WHERE MobilePhoneModel != '' GROUP BY MobilePhone, MobilePhoneModel ORDER BY u DESC LIMIT 10;
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-- мощная фильтрация по строкам, затем агрегация по паре из числа и строки.;
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SELECT SearchPhrase, count() AS c FROM hits_10m WHERE SearchPhrase != '' GROUP BY SearchPhrase ORDER BY c DESC LIMIT 10;
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-- средняя фильтрация по строкам, затем агрегация по строкам, большое количество ключей.;
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SELECT SearchPhrase, uniq(UserID) AS u FROM hits_10m WHERE SearchPhrase != '' GROUP BY SearchPhrase ORDER BY u DESC LIMIT 10;
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-- агрегация чуть сложнее.;
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SELECT SearchEngineID, SearchPhrase, count() AS c FROM hits_10m WHERE SearchPhrase != '' GROUP BY SearchEngineID, SearchPhrase ORDER BY c DESC LIMIT 10;
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-- агрегация по числу и строке, большое количество ключей.;
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SELECT UserID, count() FROM hits_10m GROUP BY UserID ORDER BY count() DESC LIMIT 10;
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-- агрегация по очень большому количеству ключей, может не хватить оперативки.;
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SELECT UserID, SearchPhrase, count() FROM hits_10m GROUP BY UserID, SearchPhrase ORDER BY count() DESC LIMIT 10;
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-- ещё более сложная агрегация.;
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SELECT UserID, SearchPhrase, count() FROM hits_10m GROUP BY UserID, SearchPhrase LIMIT 10;
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-- то же самое, но без сортировки.;
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SELECT UserID, toMinute(EventTime) AS m, SearchPhrase, count() FROM hits_10m GROUP BY UserID, m, SearchPhrase ORDER BY count() DESC LIMIT 10;
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-- ещё более сложная агрегация, не стоит выполнять на больших таблицах.;
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SELECT UserID FROM hits_10m WHERE UserID = 12345678901234567890;
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-- мощная фильтрация по столбцу типа UInt64.;
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SELECT count() FROM hits_10m WHERE URL LIKE '%metrika%';
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-- фильтрация по поиску подстроки в строке.;
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SELECT SearchPhrase, any(URL), count() AS c FROM hits_10m WHERE URL LIKE '%metrika%' AND SearchPhrase != '' GROUP BY SearchPhrase ORDER BY c DESC LIMIT 10;
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-- вынимаем большие столбцы, фильтрация по строке.;
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SELECT SearchPhrase, any(URL), any(Title), count() AS c, uniq(UserID) FROM hits_10m WHERE Title LIKE '%Яндекс%' AND URL NOT LIKE '%.yandex.%' AND SearchPhrase != '' GROUP BY SearchPhrase ORDER BY c DESC LIMIT 10;
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-- чуть больше столбцы.;
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SELECT * FROM hits_10m WHERE URL LIKE '%metrika%' ORDER BY EventTime LIMIT 10;
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-- плохой запрос - вынимаем все столбцы.;
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SELECT SearchPhrase FROM hits_10m WHERE SearchPhrase != '' ORDER BY EventTime LIMIT 10;
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-- большая сортировка.;
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SELECT SearchPhrase FROM hits_10m WHERE SearchPhrase != '' ORDER BY SearchPhrase LIMIT 10;
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-- большая сортировка по строкам.;
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SELECT SearchPhrase FROM hits_10m WHERE SearchPhrase != '' ORDER BY EventTime, SearchPhrase LIMIT 10;
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-- большая сортировка по кортежу.;
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SELECT CounterID, avg(length(URL)) AS l, count() AS c FROM hits_10m WHERE URL != '' GROUP BY CounterID HAVING c > 100000 ORDER BY l DESC LIMIT 25;
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-- считаем средние длины URL для крупных счётчиков.;
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SELECT domainWithoutWWW(Referer) AS key, avg(length(Referer)) AS l, count() AS c, any(Referer) FROM hits_10m WHERE Referer != '' GROUP BY key HAVING c > 100000 ORDER BY l DESC LIMIT 25;
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-- то же самое, но с разбивкой по доменам.;
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SELECT sum(ResolutionWidth), sum(ResolutionWidth + 1), sum(ResolutionWidth + 2), sum(ResolutionWidth + 3), sum(ResolutionWidth + 4), sum(ResolutionWidth + 5), sum(ResolutionWidth + 6), sum(ResolutionWidth + 7), sum(ResolutionWidth + 8), sum(ResolutionWidth + 9), sum(ResolutionWidth + 10), sum(ResolutionWidth + 11), sum(ResolutionWidth + 12), sum(ResolutionWidth + 13), sum(ResolutionWidth + 14), sum(ResolutionWidth + 15), sum(ResolutionWidth + 16), sum(ResolutionWidth + 17), sum(ResolutionWidth + 18), sum(ResolutionWidth + 19), sum(ResolutionWidth + 20), sum(ResolutionWidth + 21), sum(ResolutionWidth + 22), sum(ResolutionWidth + 23), sum(ResolutionWidth + 24), sum(ResolutionWidth + 25), sum(ResolutionWidth + 26), sum(ResolutionWidth + 27), sum(ResolutionWidth + 28), sum(ResolutionWidth + 29), sum(ResolutionWidth + 30), sum(ResolutionWidth + 31), sum(ResolutionWidth + 32), sum(ResolutionWidth + 33), sum(ResolutionWidth + 34), sum(ResolutionWidth + 35), sum(ResolutionWidth + 36), sum(ResolutionWidth + 37), sum(ResolutionWidth + 38), sum(ResolutionWidth + 39), sum(ResolutionWidth + 40), sum(ResolutionWidth + 41), sum(ResolutionWidth + 42), sum(ResolutionWidth + 43), sum(ResolutionWidth + 44), sum(ResolutionWidth + 45), sum(ResolutionWidth + 46), sum(ResolutionWidth + 47), sum(ResolutionWidth + 48), sum(ResolutionWidth + 49), sum(ResolutionWidth + 50), sum(ResolutionWidth + 51), sum(ResolutionWidth + 52), sum(ResolutionWidth + 53), sum(ResolutionWidth + 54), sum(ResolutionWidth + 55), sum(ResolutionWidth + 56), sum(ResolutionWidth + 57), sum(ResolutionWidth + 58), sum(ResolutionWidth + 59), sum(ResolutionWidth + 60), sum(ResolutionWidth + 61), sum(ResolutionWidth + 62), sum(ResolutionWidth + 63), sum(ResolutionWidth + 64), sum(ResolutionWidth + 65), sum(ResolutionWidth + 66), sum(ResolutionWidth + 67), sum(ResolutionWidth + 68), sum(ResolutionWidth + 69), sum(ResolutionWidth + 70), sum(ResolutionWidth + 71), sum(ResolutionWidth + 72), sum(ResolutionWidth + 73), sum(ResolutionWidth + 74), sum(ResolutionWidth + 75), sum(ResolutionWidth + 76), sum(ResolutionWidth + 77), sum(ResolutionWidth + 78), sum(ResolutionWidth + 79), sum(ResolutionWidth + 80), sum(ResolutionWidth + 81), sum(ResolutionWidth + 82), sum(ResolutionWidth + 83), sum(ResolutionWidth + 84), sum(ResolutionWidth + 85), sum(ResolutionWidth + 86), sum(ResolutionWidth + 87), sum(ResolutionWidth + 88), sum(ResolutionWidth + 89) FROM hits_10m ;
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-- много тупых агрегатных функций.;
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SELECT SearchEngineID, ClientIP, count() AS c, sum(Refresh), avg(ResolutionWidth) FROM hits_10m WHERE SearchPhrase != '' GROUP BY SearchEngineID, ClientIP ORDER BY c DESC LIMIT 10;
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-- сложная агрегация, для больших таблиц может не хватить оперативки.;
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SELECT WatchID, ClientIP, count() AS c, sum(Refresh), avg(ResolutionWidth) FROM hits_10m WHERE SearchPhrase != '' GROUP BY WatchID, ClientIP ORDER BY c DESC LIMIT 10;
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-- агрегация по двум полям, которая ничего не агрегирует. Для больших таблиц выполнить не получится.;
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SELECT WatchID, ClientIP, count() AS c, sum(Refresh), avg(ResolutionWidth) FROM hits_10m GROUP BY WatchID, ClientIP ORDER BY c DESC LIMIT 10;
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-- то же самое, но ещё и без фильтрации.;
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SELECT URL, count() AS c FROM hits_10m GROUP BY URL ORDER BY c DESC LIMIT 10;
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-- агрегация по URL.;
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SELECT 1, URL, count() AS c FROM hits_10m GROUP BY 1, URL ORDER BY c DESC LIMIT 10;
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-- агрегация по URL и числу.;
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SELECT ClientIP AS x, x - 1, x - 2, x - 3, count() AS c FROM hits_10m GROUP BY x, x - 1, x - 2, x - 3 ORDER BY c DESC LIMIT 10;
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SELECT URL, count() AS PageViews FROM hits_10m WHERE CounterID = 34 AND EventDate >= toDate('2013-07-01') AND EventDate <= toDate('2013-07-31') AND NOT DontCountHits AND NOT Refresh AND notEmpty(URL) GROUP BY URL ORDER BY PageViews DESC LIMIT 10;
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SELECT Title, count() AS PageViews FROM hits_10m WHERE CounterID = 34 AND EventDate >= toDate('2013-07-01') AND EventDate <= toDate('2013-07-31') AND NOT DontCountHits AND NOT Refresh AND notEmpty(Title) GROUP BY Title ORDER BY PageViews DESC LIMIT 10;
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SELECT URL, count() AS PageViews FROM hits_10m WHERE CounterID = 34 AND EventDate >= toDate('2013-07-01') AND EventDate <= toDate('2013-07-31') AND NOT Refresh AND IsLink AND NOT IsDownload GROUP BY URL ORDER BY PageViews DESC LIMIT 1000;
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SELECT TraficSourceID, SearchEngineID, AdvEngineID, ((SearchEngineID = 0 AND AdvEngineID = 0) ? Referer : '') AS Src, URL AS Dst, count() AS PageViews FROM hits_10m WHERE CounterID = 34 AND EventDate >= toDate('2013-07-01') AND EventDate <= toDate('2013-07-31') AND NOT Refresh GROUP BY TraficSourceID, SearchEngineID, AdvEngineID, Src, Dst ORDER BY PageViews DESC LIMIT 1000;
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SELECT URLHash, EventDate, count() AS PageViews FROM hits_10m WHERE CounterID = 34 AND EventDate >= toDate('2013-07-01') AND EventDate <= toDate('2013-07-31') AND NOT Refresh AND TraficSourceID IN (-1, 6) AND RefererHash = halfMD5('http://example.ru/') GROUP BY URLHash, EventDate ORDER BY PageViews DESC LIMIT 100;
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SELECT WindowClientWidth, WindowClientHeight, count() AS PageViews FROM hits_10m WHERE CounterID = 34 AND EventDate >= toDate('2013-07-01') AND EventDate <= toDate('2013-07-31') AND NOT Refresh AND NOT DontCountHits AND URLHash = halfMD5('http://example.ru/') GROUP BY WindowClientWidth, WindowClientHeight ORDER BY PageViews DESC LIMIT 10000;
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SELECT toStartOfMinute(EventTime) AS Minute, count() AS PageViews FROM hits_10m WHERE CounterID = 34 AND EventDate >= toDate('2013-07-01') AND EventDate <= toDate('2013-07-02') AND NOT Refresh AND NOT DontCountHits GROUP BY Minute ORDER BY Minute; |