github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/c-deps/libroach/table_props.h (about)

     1  // Copyright 2018 The Cockroach Authors.
     2  //
     3  // Use of this software is governed by the Business Source License
     4  // included in the file licenses/BSL.txt.
     5  //
     6  // As of the Change Date specified in that file, in accordance with
     7  // the Business Source License, use of this software will be governed
     8  // by the Apache License, Version 2.0, included in the file
     9  // licenses/APL.txt.
    10  
    11  #pragma once
    12  
    13  #include <rocksdb/table_properties.h>
    14  
    15  namespace cockroach {
    16  
    17  // DBMakeTimeBoundCollector returns a TablePropertiesCollector hook to store the
    18  // min and max MVCC timestamps present in each sstable in the metadata for that
    19  // sstable. Used by the time bounded iterator optimization.
    20  rocksdb::TablePropertiesCollectorFactory* DBMakeTimeBoundCollector();
    21  
    22  // DBMakeDeleteRangeCollector returns a TablePropertiesCollector hook
    23  // to mark sstables for compaction that contain range deletion
    24  // tombstones. This ensures that range deletion tombstones are quickly
    25  // compacted out of existence and the space for deleted data is
    26  // reclaimed.
    27  rocksdb::TablePropertiesCollectorFactory* DBMakeDeleteRangeCollector();
    28  
    29  }  // namespace cockroach