2019-10-10 16:30:30 +00:00
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#pragma once
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2019-12-18 16:41:11 +00:00
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#include <cstddef>
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2019-11-07 11:11:38 +00:00
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#include <Core/Settings.h>
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2019-10-10 16:30:30 +00:00
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namespace DB
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{
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2019-11-07 11:11:38 +00:00
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2019-12-18 15:54:45 +00:00
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struct MergeTreeReaderSettings
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2019-11-05 11:53:22 +00:00
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{
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size_t min_bytes_to_use_direct_io = 0;
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2020-01-09 12:54:37 +00:00
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size_t min_bytes_to_use_mmap_io = 0;
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size_t max_read_buffer_size = DBMS_DEFAULT_BUFFER_SIZE;
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2020-06-25 19:15:41 +00:00
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/// If save_marks_in_cache is false, then, if marks are not in cache,
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2020-01-16 16:15:01 +00:00
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/// we will load them but won't save in the cache, to avoid evicting other data.
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2019-11-05 11:53:22 +00:00
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bool save_marks_in_cache = false;
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};
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2019-12-18 15:54:45 +00:00
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struct MergeTreeWriterSettings
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2019-11-05 11:53:22 +00:00
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{
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2020-04-14 19:47:19 +00:00
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MergeTreeWriterSettings() = default;
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2020-02-04 13:34:57 +00:00
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MergeTreeWriterSettings(const Settings & global_settings, bool can_use_adaptive_granularity_,
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size_t aio_threshold_, bool blocks_are_granules_size_ = false)
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2019-11-07 11:11:38 +00:00
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: min_compress_block_size(global_settings.min_compress_block_size)
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2020-12-06 08:57:02 +00:00
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, max_compress_block_size(global_settings.max_compress_block_size)
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2020-02-04 13:34:57 +00:00
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, aio_threshold(aio_threshold_)
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2019-11-05 11:53:22 +00:00
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, can_use_adaptive_granularity(can_use_adaptive_granularity_)
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, blocks_are_granules_size(blocks_are_granules_size_) {}
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size_t min_compress_block_size;
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size_t max_compress_block_size;
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size_t aio_threshold;
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bool can_use_adaptive_granularity;
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bool blocks_are_granules_size;
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2020-04-17 11:59:10 +00:00
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2020-04-14 19:47:19 +00:00
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/// true if we write temporary files during alter.
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2019-11-05 11:53:22 +00:00
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size_t estimated_size = 0;
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};
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2020-04-14 19:47:19 +00:00
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2019-10-10 16:30:30 +00:00
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}
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