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34 lines
1.2 KiB
SQL
34 lines
1.2 KiB
SQL
set force_primary_key=1;
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drop table if exists tab;
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create table tab (t DateTime) engine = MergeTree order by toStartOfDay(t);
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insert into tab values ('2020-02-02 01:01:01');
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select t from tab where t > '2020-01-01 01:01:01';
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with t as s select t from tab where s > '2020-01-01 01:01:01';
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drop table if exists tab;
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create table tab (t DateTime) engine = MergeTree order by toStartOfDay(t + 1);
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insert into tab values ('2020-02-02 01:01:01');
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select t from tab where t + 1 > '2020-01-01 01:01:01';
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with t + 1 as s select t from tab where s > '2020-01-01 01:01:01';
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set force_primary_key = 0;
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set force_index_by_date=1;
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drop table if exists tab;
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create table tab (x Int32, y Int32) engine = MergeTree partition by x + y order by tuple();
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insert into tab values (1, 1), (2, 2);
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select x, y from tab where (x + y) = 2;
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with x + y as s select x, y from tab where s = 2;
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-- with x as s select x, y from tab where s + y = 2;
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drop table if exists tab;
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create table tab (x Int32, y Int32) engine = MergeTree partition by ((x + y) + 1) * 2 order by tuple();
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insert into tab values (1, 1), (2, 2);
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select x, y from tab where (x + y) + 1 = 3;
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-- with x + y as s select x, y from tab where s + 1 = 3;
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set force_index_by_date=0;
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drop table if exists tab;
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