@@ -79,17 +79,18 @@ select number, quantileExact(number) over (partition by intDiv(number, 3)) q fro
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select q * 10, quantileExact(number) over (partition by intDiv(number, 3)) q from numbers(10); -- { serverError 47 }
-- should work in ORDER BY though
-- must work in WHERE if you wrap it in a subquery
select number, max(number) over (partition by intDiv(number, 3) order by number desc) m from numbers(10) order by m desc, number;
select * from (select count(*) over () c from numbers(3)) where c > 0;
-- this one doesn't work yet -- looks like the column names clash, and the
-- window count() is overwritten with aggregate count()
-- select number, count(), count() over (partition by intDiv(number, 3)) from numbers(10) group by number order by count() desc;
-- should work in ORDER BY
-- different windows
-- an explain test would also be helpful, but it's too immature now and I don't
-- want to change reference all the time
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select number, max(number) over (partition by intDiv(number, 3) order by number desc) m from numbers(10) order by m desc, number;
-- also works in ORDER BY if you wrap it in a subquery
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...
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@@ -101,6 +102,37 @@ select number, max(number) over (partition by intDiv(number, 3) order by number
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select * from (select count(*) over () c from numbers(3)) order by c;
-- Example with window function only in ORDER BY. Here we make a rank of all
-- numbers sorted descending, and then sort by this rank descending, and must get
-- the ascending order.
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select * from (select * from numbers(5) order by rand()) order by count() over (order by number desc) desc;
-- Aggregate functions as window function arguments. This query is semantically
-- the same as the above one, only we replace `number` with
-- `any(number) group by number` and so on.
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select * from (select * from numbers(5) order by rand()) group by number order by sum(any(number + 1)) over (order by min(number) desc) desc;
-- different windows
-- an explain test would also be helpful, but it's too immature now and I don't
-- want to change reference all the time
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select number, max(number) over (partition by intDiv(number, 3) order by number desc), count(number) over (partition by intDiv(number, 5) order by number) as m from numbers(31) order by number settings max_block_size = 2;
-- two functions over the same window
...
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@@ -140,6 +172,8 @@ select number, max(number) over (partition by intDiv(number, 3) order by number
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select number, max(number) over (partition by intDiv(number, 3) order by number desc), count(number) over (partition by intDiv(number, 3) order by number desc) as m from numbers(7) order by number settings max_block_size = 2;
-- check that we can work with constant columns
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...
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@@ -147,3 +181,39 @@ select number, max(number) over (partition by intDiv(number, 3) order by number
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select median(x) over (partition by x) from (select 1 x);
-- an empty window definition is valid as well
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select groupArray(number) over () from numbers(3);
-- This one tests we properly process the window function arguments.
-- Seen errors like 'column `1` not found' from count(1).
[0]
[0,1]
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select count(1) over (), max(number + 1) over () from numbers(3);
-- Should work in DISTINCT
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select distinct sum(0) over () from numbers(2);
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select distinct any(number) over () from numbers(2);
-- Various kinds of aliases are properly substituted into various parts of window
-- function definition.
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with number + 1 as x select intDiv(number, 3) as y, sum(x + y) over (partition by y order by x) from numbers(7);
