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Merge pull request #11315 from ClickHouse/add-test-for-distributed_low_cardinality_memory_efficient

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Added a test for Distributed table with String looking at tables with LowCardinality(String) in presense of memory efficient aggregation setting
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alexey-milovidov 2020-05-31 17:30:58 +03:00 committed by GitHub
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tests/queries/0_stateless/01291_distributed_low_cardinality_memory_efficient.reference Normal file
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foo

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tests/queries/0_stateless/01291_distributed_low_cardinality_memory_efficient.sql Normal file
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DROP TABLE IF EXISTS data;
DROP TABLE IF EXISTS dist;
create table data (key String) Engine=Memory();
create table dist (key LowCardinality(String)) engine=Distributed(test_cluster_two_shards, currentDatabase(), data);
insert into data values ('foo');
set distributed_aggregation_memory_efficient=1;
select * from dist group by key;
DROP TABLE data;
DROP TABLE dist;