mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-06 22:42:22 +00:00
34 lines
1.4 KiB
Django/Jinja
34 lines
1.4 KiB
Django/Jinja
-- Tags: long
|
|
-- Tag long: in parallel runs could exceed 60 seconds
|
|
{# vim: ft=sql #}
|
|
|
|
SET max_memory_usage=0;
|
|
DROP DICTIONARY IF EXISTS dict;
|
|
DROP TABLE IF EXISTS dict_data;
|
|
|
|
CREATE TABLE dict_data (key UInt64, value UInt64) Engine=Memory();
|
|
INSERT INTO dict_data SELECT number, number%10 FROM numbers(3_000_000);
|
|
|
|
SET max_memory_usage='4Mi';
|
|
{% for layout in [
|
|
'FLAT(INITIAL_ARRAY_SIZE 3_000_000 MAX_ARRAY_SIZE 3_000_000)',
|
|
'HASHED()',
|
|
'HASHED_ARRAY()',
|
|
'HASHED_ARRAY(SHARDS 2)',
|
|
'SPARSE_HASHED()',
|
|
'SPARSE_HASHED(SHARDS 2 /* shards are special, they use threads */)',
|
|
] %}
|
|
CREATE DICTIONARY dict (key UInt64, value UInt64) PRIMARY KEY key SOURCE(CLICKHOUSE(TABLE dict_data)) LIFETIME(0) LAYOUT({{layout}});
|
|
SYSTEM RELOAD DICTIONARY dict;
|
|
-- assert that dictionary in memory takes more than 20MB, that way for each
|
|
-- shard we will have 10MB, that way we ensure that the allocations will be
|
|
-- definitely correct for the memory tracker to hit the MEMORY_LIMIT_EXCEEDED
|
|
-- error.
|
|
SELECT throwIf(bytes_allocated < 20e6, 'Memory constraints does not matched for layout {{layout}}') FROM system.dictionaries WHERE database = currentDatabase() AND name = 'dict' FORMAT Null;
|
|
DROP DICTIONARY dict;
|
|
|
|
CREATE DICTIONARY dict (key UInt64, value UInt64) PRIMARY KEY key SOURCE(CLICKHOUSE(TABLE dict_data)) LIFETIME(0) LAYOUT({{layout}});
|
|
SELECT dictGet('dict', 'value', 1::UInt64) FORMAT Null;
|
|
DROP DICTIONARY dict;
|
|
{% endfor %}
|