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8 lines
389 B
MySQL
8 lines
389 B
MySQL
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-- Tags: no-tsan, no-asan, no-ubsan, no-msan, no-debug
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drop table if exists tab_lc;
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CREATE TABLE tab_lc (x UInt64, y LowCardinality(String)) engine = MergeTree order by x;
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insert into tab_lc select number, toString(number % 10) from numbers(20000000);
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optimize table tab_lc;
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select count() from tab_lc where y == '0' settings local_filesystem_read_prefetch=1;
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drop table if exists tab_lc;
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