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10 lines
608 B
SQL
10 lines
608 B
SQL
create table if not exists sample_prewhere (date Date, id Int32, time Int64) engine = MergeTree partition by date order by (id, time, intHash64(time)) sample by intHash64(time);
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insert into sample_prewhere values ('2019-01-01', 2, toDateTime('2019-07-20 00:00:01'));
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insert into sample_prewhere values ('2019-01-01', 1, toDateTime('2019-07-20 00:00:02'));
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insert into sample_prewhere values ('2019-01-02', 3, toDateTime('2019-07-20 00:00:03'));
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select id from remote('127.0.0.{1,3}', currentDatabase(), sample_prewhere) SAMPLE 1 where toDateTime(time) = '2019-07-20 00:00:00';
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drop table sample_prewhere;
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