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alesapin 2018-12-24 19:03:22 +03:00
parent 22b9969f05
commit f7e06cf9ac
2 changed files with 1 additions and 12 deletions
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3
dbms/src/Storages/MergeTree/MergeTreeReader.h
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@ -8,12 +8,12 @@
#include <Core/NamesAndTypes.h>
#include <port/clock.h>
class CachedCompressedReadBuffer;
namespace DB
{
class IDataType;
class CachedCompressedReadBuffer;
/// Reads the data between pairs of marks in the same part. When reading consecutive ranges, avoids unnecessary seeks.
/// When ranges are almost consecutive, seeks are fast because they are performed inside the buffer.
@ -90,7 +90,6 @@ private:
bool save_marks_in_cache;
MarkCache::MappedPtr marks;
std::unique_ptr<CachedCompressedReadBuffer> cached_buffer;
std::unique_ptr<CompressedReadBufferFromFile> non_cached_buffer;
};

10
dbms/tests/integration/test_non_default_compression/configs/compression_config.xml
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@ -1,10 +0,0 @@
<yandex>
<case>
<!-- Conditions. All must be satisfied simultaneously. Some conditions may not be specified. -->
<min_part_size>0</min_part_size> <!-- The minimum size of a part in bytes. -->
<min_part_size_ratio>0</min_part_size_ratio> <!-- The minimum size of the part relative to all the data in the table. -->
<!-- Which compression method to choose. -->
<method>zstd</method>
<level>2</level>
</case>
</yandex>