ClickHouse/dbms/src/Storages/System/StorageSystemBuildOptions.cpp

61 lines
1.5 KiB
C++

#include <DB/Columns/ColumnString.h>
#include <DB/DataTypes/DataTypeString.h>
#include <DB/DataTypes/DataTypesNumber.h>
#include <DB/DataStreams/OneBlockInputStream.h>
#include <DB/Interpreters/Settings.h>
#include <DB/Storages/System/StorageSystemBuildOptions.h>
#include <DB/Common/config_build.h>
namespace DB
{
StorageSystemBuildOptions::StorageSystemBuildOptions(const std::string & name_)
: name(name_)
, columns{
{ "name", std::make_shared<DataTypeString>() },
{ "value", std::make_shared<DataTypeString>() },
}
{
}
StoragePtr StorageSystemBuildOptions::create(const std::string & name_)
{
return make_shared(name_);
}
BlockInputStreams StorageSystemBuildOptions::read(
const Names & column_names,
ASTPtr query,
const Context & context,
const Settings & settings,
QueryProcessingStage::Enum & processed_stage,
const size_t max_block_size,
const unsigned threads)
{
check(column_names);
processed_stage = QueryProcessingStage::FetchColumns;
ColumnWithTypeAndName col_name{std::make_shared<ColumnString>(), std::make_shared<DataTypeString>(), "name"};
ColumnWithTypeAndName col_value{std::make_shared<ColumnString>(), std::make_shared<DataTypeString>(), "value"};
for (auto it = auto_config_build.begin(); it != auto_config_build.end(); ++it) {
col_name.column->insert(String(*it));
++it;
if (it == auto_config_build.end())
break;
col_value.column->insert(String(*it));
}
Block block{
col_name,
col_value,
};
return BlockInputStreams(1, std::make_shared<OneBlockInputStream>(block));
}
}