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12 lines
347 B
SQL
12 lines
347 B
SQL
drop table if exists t;
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create table t (a Int) engine = MergeTree order by a;
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-- some magic to satisfy conditions to run optimizations in MergeTreeRangeReader
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insert into t select number < 20 ? 0 : 1 from numbers(50);
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alter table t add column s String default 'foo';
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select s from t prewhere a != 1 where rand() % 2 = 0 limit 1;
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drop table t;
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