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/**
* Copyright (C) 2022-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include "mongo/db/index/column_cell.h"
#include "mongo/db/index/column_key_generator.h"
#include "mongo/db/index/index_access_method.h"
#include "mongo/db/storage/column_store.h"
namespace mongo {
class ColumnStoreAccessMethod : public IndexAccessMethod {
ColumnStoreAccessMethod(const ColumnStoreAccessMethod&) = delete;
ColumnStoreAccessMethod& operator=(const ColumnStoreAccessMethod&) = delete;
public:
//
// Column-specific APIs
//
ColumnStoreAccessMethod(IndexCatalogEntry* ice, std::unique_ptr<ColumnStore>);
const column_keygen::ColumnKeyGenerator& getKeyGen() const {
return _keyGen;
}
/**
* Returns a pointer to the ColumnstoreProjection owned by the underlying ColumnKeyGenerator.
*/
const ColumnStoreProjection* getColumnstoreProjection() const {
return _keyGen.getColumnstoreProjection();
}
//
// Generic IndexAccessMethod APIs
//
Status insert(OperationContext* opCtx,
SharedBufferFragmentBuilder& pooledBufferBuilder,
const CollectionPtr& coll,
const std::vector<BsonRecord>& bsonRecords,
const InsertDeleteOptions& options,
int64_t* keysInsertedOut) final;
void remove(OperationContext* opCtx,
SharedBufferFragmentBuilder& pooledBufferBuilder,
const CollectionPtr& coll,
const BSONObj& obj,
const RecordId& rid,
bool logIfError,
const InsertDeleteOptions& options,
int64_t* keysDeletedOut,
CheckRecordId checkRecordId) final;
Status update(OperationContext* opCtx,
SharedBufferFragmentBuilder& pooledBufferBuilder,
const BSONObj& oldDoc,
const BSONObj& newDoc,
const RecordId& rid,
const CollectionPtr& coll,
const InsertDeleteOptions& options,
int64_t* keysInsertedOut,
int64_t* keysDeletedOut) final;
Status applyIndexBuildSideWrite(OperationContext* opCtx,
const CollectionPtr& coll,
const BSONObj& operation,
const InsertDeleteOptions& unusedOptions,
KeyHandlerFn&& unusedFn,
int64_t* keysInserted,
int64_t* keysDeleted) final;
Status initializeAsEmpty(OperationContext* opCtx) final;
IndexValidateResults validate(OperationContext* opCtx, bool full) const final;
int64_t numKeys(OperationContext* opCtx) const final;
bool appendCustomStats(OperationContext* opCtx,
BSONObjBuilder* result,
double scale) const final;
long long getSpaceUsedBytes(OperationContext* opCtx) const final;
long long getFreeStorageBytes(OperationContext* opCtx) const final;
Status compact(OperationContext* opCtx) final;
std::unique_ptr<IndexAccessMethod::BulkBuilder> initiateBulk(
size_t maxMemoryUsageBytes,
const boost::optional<IndexStateInfo>& stateInfo,
StringData dbName) final;
std::shared_ptr<Ident> getSharedIdent() const final;
void setIdent(std::shared_ptr<Ident> ident) final;
const ColumnStore* storage() const {
return _store.get();
}
ColumnStore* writableStorage() const {
return _store.get();
}
class BulkBuilder;
const std::string& indexName() const {
return _descriptor->indexName();
}
/**
* Returns true iff 'compressor' is a recognized name of a block compression module that is
* supported for use with the column store index.
*
* Actual support for the module depends on the storage engine, however. This method does _not_
* guarantee that creating a column store index with 'compressor' will always work.
*/
static bool supportsBlockCompressor(StringData compressor);
private:
void _visitCellsForIndexInsert(OperationContext* opCtx,
PooledFragmentBuilder& pooledFragmentBuilder,
const std::vector<BsonRecord>& bsonRecords,
function_ref<void(StringData, const BsonRecord&)> cb) const;
const std::unique_ptr<ColumnStore> _store;
IndexCatalogEntry* const _indexCatalogEntry; // owned by IndexCatalog
const IndexDescriptor* const _descriptor;
const column_keygen::ColumnKeyGenerator _keyGen;
};
} // namespace mongo
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