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9 lines
526 B
MySQL
9 lines
526 B
MySQL
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drop table if exists test.tab;
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create table test.tab (date Date, version UInt64, val UInt64) engine = ReplacingMergeTree(version) partition by date order by date settings enable_vertical_merge_algorithm = 1, vertical_merge_algorithm_min_rows_to_activate = 1, vertical_merge_algorithm_min_columns_to_activate = 0;
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insert into test.tab values ('2018-01-01', 2, 2), ('2018-01-01', 1, 1);
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insert into test.tab values ('2018-01-01', 0, 0);
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select * from test.tab order by version;
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OPTIMIZE TABLE test.tab;
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select * from test.tab;
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