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22 lines
1.5 KiB
SQL
22 lines
1.5 KiB
SQL
drop table if exists t;
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create table t (s UInt16, l UInt16, projection p (select s, l order by l)) engine MergeTree order by s;
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select s from t join (select toUInt16(1) as s) x using (s) order by s settings allow_experimental_projection_optimization = 1;
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select s from t join (select toUInt16(1) as s) x using (s) order by s settings allow_experimental_projection_optimization = 0;
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drop table t;
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drop table if exists mt;
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create table mt (id1 Int8, id2 Int8) Engine=MergeTree order by tuple();
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select alias1 from (select id1, id1 as alias1 from mt) as l all inner join (select id2 as alias1 from mt) as t using (alias1) order by l.id1 settings allow_experimental_projection_optimization = 1;
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select id1 from mt all inner join (select id2 as id1 from mt) as t using (id1) order by id1 settings allow_experimental_projection_optimization = 1;
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select id2 as id1 from mt all inner join (select id1 from mt) as t using (id1) order by id1 settings allow_experimental_projection_optimization = 1;
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drop table mt;
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drop table if exists j;
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create table j (id1 Int8, id2 Int8, projection p (select id1, id2 order by id2)) Engine=MergeTree order by id1 settings index_granularity = 1;
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insert into j select number, number from numbers(10);
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select alias1 from (select id1, id1 as alias1 from j) as l all inner join (select id2, id2 as alias1 from j where id2 in (1, 2, 3)) as t using (alias1) where id2 in (2, 3, 4) order by id1 settings allow_experimental_projection_optimization = 1;
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drop table j;
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