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10 lines
547 B
SQL
10 lines
547 B
SQL
drop table if exists da_memory_efficient_shard;
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create table da_memory_efficient_shard(A Int64, B Int64) Engine=MergeTree order by A partition by B % 2;
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insert into da_memory_efficient_shard select number, number from numbers(100000);
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set distributed_aggregation_memory_efficient = 1, group_by_two_level_threshold = 1, group_by_two_level_threshold_bytes=1;
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select sum(a) from (SELECT B, uniqExact(A) a FROM remote('localhost,127.0.0.1', currentDatabase(), da_memory_efficient_shard) GROUP BY B);
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drop table if exists da_memory_efficient_shard;
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