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#include <Storages/MergeTree/MergeTreeDataPartBuilder.h>
#include <Storages/MergeTree/MergeTreeDataPartInMemory.h>
#include <Storages/MergeTree/MergeTreeDataPartCompact.h>
#include <Storages/MergeTree/MergeTreeDataPartWide.h>
#include <Storages/MergeTree/DataPartStorageOnDiskFull.h>
#include <Storages/MergeTree/MergeTreeData.h>
namespace DB
{
namespace ErrorCodes
{
extern const int LOGICAL_ERROR;
extern const int UNKNOWN_PART_TYPE;
}
MergeTreeDataPartBuilder::MergeTreeDataPartBuilder(
const MergeTreeData & data_, String name_, VolumePtr volume_, String root_path_, String part_dir_)
: data(data_)
, name(std::move(name_))
, volume(std::move(volume_))
, root_path(std::move(root_path_))
, part_dir(std::move(part_dir_))
{
}
MergeTreeDataPartBuilder::MergeTreeDataPartBuilder(
const MergeTreeData & data_, String name_, MutableDataPartStoragePtr part_storage_)
: data(data_)
, name(std::move(name_))
, part_storage(std::move(part_storage_))
{
}
std::shared_ptr<IMergeTreeDataPart> MergeTreeDataPartBuilder::build()
{
using PartType = MergeTreeDataPartType;
using PartStorageType = MergeTreeDataPartStorageType;
if (!part_type)
throw Exception(ErrorCodes::LOGICAL_ERROR, "Cannot create part {}, because part type is not set", name);
if (!part_storage)
throw Exception(ErrorCodes::LOGICAL_ERROR, "Cannot create part {}, because part storage is not set", name);
if (parent_part && data.format_version == MERGE_TREE_DATA_OLD_FORMAT_VERSION)
throw Exception(ErrorCodes::LOGICAL_ERROR, "Cannot create projection part in MergeTree table created in old syntax");
auto part_storage_type = part_storage->getType();
if (!data.canUsePolymorphicParts() &&
(part_type != PartType::Wide || part_storage_type != PartStorageType::Full))
{
throw Exception(ErrorCodes::LOGICAL_ERROR,
"Cannot create part with type {} and storage type {} because table does not support polymorphic parts",
part_type->toString(), part_storage_type.toString());
}
if (!part_info)
part_info = MergeTreePartInfo::fromPartName(name, data.format_version);
switch (part_type->getValue())
{
case PartType::Wide:
return std::make_shared<MergeTreeDataPartWide>(data, name, *part_info, part_storage, parent_part);
case PartType::Compact:
return std::make_shared<MergeTreeDataPartCompact>(data, name, *part_info, part_storage, parent_part);
case PartType::InMemory:
return std::make_shared<MergeTreeDataPartInMemory>(data, name, *part_info, part_storage, parent_part);
default:
throw Exception(ErrorCodes::UNKNOWN_PART_TYPE,
"Unknown type of part {}", part_storage->getRelativePath());
}
}
MutableDataPartStoragePtr MergeTreeDataPartBuilder::getPartStorageByType(
MergeTreeDataPartStorageType storage_type_,
const VolumePtr & volume_,
const String & root_path_,
const String & part_dir_)
{
if (!volume_)
throw Exception(ErrorCodes::LOGICAL_ERROR, "Cannot create part storage, because volume is not specified");
using Type = MergeTreeDataPartStorageType;
switch (storage_type_.getValue())
{
case Type::Full:
return std::make_shared<DataPartStorageOnDiskFull>(volume_, root_path_, part_dir_);
default:
throw Exception(ErrorCodes::UNKNOWN_PART_TYPE,
"Unknown type of storage for part {}", fs::path(root_path_) / part_dir_);
}
}
MergeTreeDataPartBuilder & MergeTreeDataPartBuilder::withPartInfo(MergeTreePartInfo part_info_)
{
part_info = std::move(part_info_);
return *this;
}
MergeTreeDataPartBuilder & MergeTreeDataPartBuilder::withParentPart(const IMergeTreeDataPart * parent_part_)
{
if (parent_part_ && parent_part_->isProjectionPart())
throw Exception(ErrorCodes::LOGICAL_ERROR, "Parent part cannot be projection");
parent_part = parent_part_;
return *this;
}
MergeTreeDataPartBuilder & MergeTreeDataPartBuilder::withPartType(MergeTreeDataPartType part_type_)
{
part_type = part_type_;
return *this;
}
MergeTreeDataPartBuilder & MergeTreeDataPartBuilder::withPartStorageType(MergeTreeDataPartStorageType storage_type_)
{
part_storage = getPartStorageByType(storage_type_, volume, root_path, part_dir);
return *this;
}
MergeTreeDataPartBuilder & MergeTreeDataPartBuilder::withPartFormat(MergeTreeDataPartFormat format_)
{
withPartType(format_.part_type);
return part_storage ? *this : withPartStorageType(format_.storage_type);
}
MergeTreeDataPartBuilder::PartStorageAndMarkType
MergeTreeDataPartBuilder::getPartStorageAndMarkType(
const VolumePtr & volume_,
const String & root_path_,
const String & part_dir_)
{
auto disk = volume_->getDisk();
auto part_relative_path = fs::path(root_path_) / part_dir_;
for (auto it = disk->iterateDirectory(part_relative_path); it->isValid(); it->next())
{
auto it_path = fs::path(it->name());
auto ext = it_path.extension().string();
if (MarkType::isMarkFileExtension(ext))
{
auto storage = getPartStorageByType(MergeTreeDataPartStorageType::Full, volume_, root_path_, part_dir_);
return {std::move(storage), MarkType(ext)};
}
}
return {};
}
MergeTreeDataPartBuilder & MergeTreeDataPartBuilder::withPartFormatFromDisk()
{
if (part_storage)
return withPartFormatFromStorage();
else
return withPartFormatFromVolume();
}
MergeTreeDataPartBuilder & MergeTreeDataPartBuilder::withPartFormatFromVolume()
{
assert(volume);
auto [storage, mark_type] = getPartStorageAndMarkType(volume, root_path, part_dir);
if (!storage || !mark_type)
{
/// Didn't find any data or mark file, suppose that part is empty.
return withBytesAndRowsOnDisk(0, 0);
}
part_storage = std::move(storage);
part_type = mark_type->part_type;
return *this;
}
MergeTreeDataPartBuilder & MergeTreeDataPartBuilder::withPartFormatFromStorage()
{
assert(part_storage);
auto mark_type = MergeTreeIndexGranularityInfo::getMarksTypeFromFilesystem(*part_storage);
if (!mark_type)
{
/// Didn't find any mark file, suppose that part is empty.
return withBytesAndRowsOnDisk(0, 0);
}
part_type = mark_type->part_type;
return *this;
}
MergeTreeDataPartBuilder & MergeTreeDataPartBuilder::withBytesAndRows(size_t bytes_uncompressed, size_t rows_count)
{
return withPartFormat(data.choosePartFormat(bytes_uncompressed, rows_count));
}
MergeTreeDataPartBuilder & MergeTreeDataPartBuilder::withBytesAndRowsOnDisk(size_t bytes_uncompressed, size_t rows_count)
{
return withPartFormat(data.choosePartFormatOnDisk(bytes_uncompressed, rows_count));
}
}
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