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Added test for low cardinality with prewhere. #2896

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Nikolai Kochetov 2018-08-22 15:49:12 +03:00
parent b165a53e30
commit 409d68b8c0
2 changed files with 7 additions and 0 deletions
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dbms/tests/queries/0_stateless/00688_low_cardinality_prewhere.reference Normal file
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dbms/tests/queries/0_stateless/00688_low_cardinality_prewhere.sql Normal file
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set allow_experimental_low_cardinality_type = 1;
drop table if exists test.lc_prewhere;
create table test.lc_prewhere (key UInt64, val UInt64, str StringWithDictionary, s String) engine = MergeTree order by key settings index_granularity = 8192;
insert into test.lc_prewhere select number, if(number < 10 or number > 8192 * 9, 1, 0), toString(number) as s, s from system.numbers limit 100000;
select sum(toUInt64(str)), sum(toUInt64(s)) from test.lc_prewhere prewhere val == 1;
drop table if exists test.lc_prewhere;