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36 lines
752 B
C++
36 lines
752 B
C++
#include <Storages/MarkCache.h>
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namespace DB
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{
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class MergeTreeMarksLoader
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{
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public:
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using MarksPtr = MarkCache::MappedPtr;
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using LoadFunc = std::function<MarksPtr()>;
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MergeTreeMarksLoader() {}
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MergeTreeMarksLoader(MarkCache * mark_cache_,
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const String & mrk_path_,
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const LoadFunc & load_func_,
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bool save_marks_in_cache_,
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size_t columns_num_ = 1);
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const MarkInCompressedFile & getMark(size_t row_index, size_t column_index = 0);
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bool initialized() const { return marks != nullptr; }
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private:
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MarkCache * mark_cache = nullptr;
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String mrk_path;
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LoadFunc load_func;
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bool save_marks_in_cache = false;
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size_t columns_num;
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MarksPtr marks;
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void loadMarks();
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};
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}
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