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16 lines
400 B
MySQL
16 lines
400 B
MySQL
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set allow_experimental_projection_optimization = 1;
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drop table if exists t;
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create table t (i int, j int, projection x (select * order by j)) engine MergeTree partition by i order by i;
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insert into t values (1, 2);
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alter table t detach partition 1;
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alter table t attach partition 1;
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select count() from system.projection_parts where database = currentDatabase() and table = 't';
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drop table t;
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