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10 lines
447 B
MySQL
10 lines
447 B
MySQL
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drop table if exists t;
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create table t (x UInt32) engine = MergeTree order by tuple() settings index_granularity = 8;
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insert into t select number from numbers(100);
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alter table t add projection p (select uniqHLL12(x));
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insert into t select number + 100 from numbers(100);
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select uniqHLL12(x) from t settings allow_experimental_projection_optimization = 1, max_bytes_to_read=400, max_block_size=8; -- { serverError 307; }
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drop table if exists t;
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