mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-09-30 05:30:51 +00:00
53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
#pragma once
|
|
|
|
#include <DB/Dictionaries/IDictionarySource.h>
|
|
#include <DB/Dictionaries/DictionaryStructure.h>
|
|
|
|
namespace DB
|
|
{
|
|
|
|
|
|
/// Allows loading dictionaries from executable
|
|
class ExecutableDictionarySource final : public IDictionarySource
|
|
{
|
|
static constexpr auto max_block_size = 8192;
|
|
|
|
public:
|
|
|
|
ExecutableDictionarySource(
|
|
const DictionaryStructure & dict_struct_,
|
|
const Poco::Util::AbstractConfiguration & config,
|
|
const std::string & config_prefix,
|
|
Block & sample_block,
|
|
const Context & context
|
|
);
|
|
|
|
ExecutableDictionarySource(const ExecutableDictionarySource & other);
|
|
|
|
BlockInputStreamPtr loadAll() override;
|
|
|
|
BlockInputStreamPtr loadIds(const std::vector<UInt64> & ids) override;
|
|
|
|
BlockInputStreamPtr loadKeys(
|
|
const ConstColumnPlainPtrs & key_columns, const std::vector<std::size_t> & requested_rows) override;
|
|
|
|
bool isModified() const override;
|
|
|
|
bool supportsSelectiveLoad() const override;
|
|
|
|
DictionarySourcePtr clone() const override;
|
|
|
|
std::string toString() const override;
|
|
|
|
private:
|
|
Logger * log = &Logger::get("ExecutableDictionarySource");
|
|
|
|
const DictionaryStructure dict_struct;
|
|
const std::string path;
|
|
const std::string format;
|
|
Block sample_block;
|
|
const Context & context;
|
|
};
|
|
|
|
}
|