mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-05 15:21:43 +00:00
791 lines
18 KiB
C++
791 lines
18 KiB
C++
#pragma once
|
||
|
||
#include <DB/Core/Field.h>
|
||
#include <DB/IO/WriteHelpers.h>
|
||
#include <Poco/Timespan.h>
|
||
|
||
#include <DB/Common/getNumberOfPhysicalCPUCores.h>
|
||
|
||
#include <DB/IO/CompressedStream.h>
|
||
#include <DB/IO/ReadHelpers.h>
|
||
|
||
|
||
namespace DB
|
||
{
|
||
|
||
namespace ErrorCodes
|
||
{
|
||
extern const int TYPE_MISMATCH;
|
||
extern const int UNKNOWN_LOAD_BALANCING;
|
||
extern const int UNKNOWN_OVERFLOW_MODE;
|
||
extern const int ILLEGAL_OVERFLOW_MODE;
|
||
extern const int UNKNOWN_TOTALS_MODE;
|
||
extern const int UNKNOWN_COMPRESSION_METHOD;
|
||
extern const int UNKNOWN_DISTRIBUTED_PRODUCT_MODE;
|
||
extern const int UNKNOWN_GLOBAL_SUBQUERIES_METHOD;
|
||
}
|
||
|
||
|
||
/** Одна настройка какого-либо типа.
|
||
* Хранит внутри себя значение, а также флаг - было ли значение изменено.
|
||
* Это сделано, чтобы можно было отправлять на удалённые серверы только изменённые (или явно указанные в конфиге) значения.
|
||
* То есть, если настройка не была указана в конфиге и не была изменена динамически, то она не отправляется на удалённый сервер,
|
||
* и удалённый сервер будет использовать своё значение по-умолчанию.
|
||
*/
|
||
|
||
template <typename IntType>
|
||
struct SettingInt
|
||
{
|
||
IntType value;
|
||
bool changed = false;
|
||
|
||
SettingInt(IntType x = 0) : value(x) {}
|
||
|
||
operator IntType() const { return value; }
|
||
SettingInt & operator= (IntType x) { set(x); return *this; }
|
||
|
||
String toString() const
|
||
{
|
||
return DB::toString(value);
|
||
}
|
||
|
||
void set(IntType x)
|
||
{
|
||
value = x;
|
||
changed = true;
|
||
}
|
||
|
||
void set(const Field & x)
|
||
{
|
||
set(safeGet<IntType>(x));
|
||
}
|
||
|
||
void set(const String & x)
|
||
{
|
||
set(parse<IntType>(x));
|
||
}
|
||
|
||
void set(ReadBuffer & buf)
|
||
{
|
||
IntType x = 0;
|
||
readVarT(x, buf);
|
||
set(x);
|
||
}
|
||
|
||
void write(WriteBuffer & buf) const
|
||
{
|
||
writeVarT(value, buf);
|
||
}
|
||
};
|
||
|
||
using SettingUInt64 = SettingInt<UInt64>;
|
||
using SettingInt64 = SettingInt<Int64>;
|
||
using SettingBool = SettingUInt64;
|
||
|
||
|
||
/** В отличие от SettingUInt64, поддерживает значение 'auto' - количество процессорных ядер без учёта SMT.
|
||
* Значение 0 так же воспринимается как auto.
|
||
* При сериализации, auto записывается так же, как 0.
|
||
*/
|
||
struct SettingMaxThreads
|
||
{
|
||
UInt64 value;
|
||
bool is_auto;
|
||
bool changed = false;
|
||
|
||
SettingMaxThreads(UInt64 x = 0) : value(x ? x : getAutoValue()), is_auto(x == 0) {}
|
||
|
||
operator UInt64() const { return value; }
|
||
SettingMaxThreads & operator= (UInt64 x) { set(x); return *this; }
|
||
|
||
String toString() const
|
||
{
|
||
/// Вместо значения auto выводим актуальное значение, чтобы его было легче посмотреть.
|
||
return DB::toString(value);
|
||
}
|
||
|
||
void set(UInt64 x)
|
||
{
|
||
value = x ? x : getAutoValue();
|
||
is_auto = x == 0;
|
||
changed = true;
|
||
}
|
||
|
||
void set(const Field & x)
|
||
{
|
||
if (x.getType() == Field::Types::String)
|
||
set(safeGet<const String &>(x));
|
||
else
|
||
set(safeGet<UInt64>(x));
|
||
}
|
||
|
||
void set(const String & x)
|
||
{
|
||
if (x == "auto")
|
||
setAuto();
|
||
else
|
||
set(parse<UInt64>(x));
|
||
}
|
||
|
||
void set(ReadBuffer & buf)
|
||
{
|
||
UInt64 x = 0;
|
||
readVarUInt(x, buf);
|
||
set(x);
|
||
}
|
||
|
||
void write(WriteBuffer & buf) const
|
||
{
|
||
writeVarUInt(is_auto ? 0 : value, buf);
|
||
}
|
||
|
||
void setAuto()
|
||
{
|
||
value = getAutoValue();
|
||
is_auto = true;
|
||
}
|
||
|
||
UInt64 getAutoValue() const
|
||
{
|
||
static auto res = getAutoValueImpl();
|
||
return res;
|
||
}
|
||
|
||
/// Выполняется один раз за всё время. Выполняется из одного потока.
|
||
UInt64 getAutoValueImpl() const
|
||
{
|
||
return getNumberOfPhysicalCPUCores();
|
||
}
|
||
};
|
||
|
||
|
||
struct SettingSeconds
|
||
{
|
||
Poco::Timespan value;
|
||
bool changed = false;
|
||
|
||
SettingSeconds(UInt64 seconds = 0) : value(seconds, 0) {}
|
||
|
||
operator Poco::Timespan() const { return value; }
|
||
SettingSeconds & operator= (Poco::Timespan x) { set(x); return *this; }
|
||
|
||
Poco::Timespan::TimeDiff totalSeconds() const { return value.totalSeconds(); }
|
||
|
||
String toString() const
|
||
{
|
||
return DB::toString(totalSeconds());
|
||
}
|
||
|
||
void set(Poco::Timespan x)
|
||
{
|
||
value = x;
|
||
changed = true;
|
||
}
|
||
|
||
void set(UInt64 x)
|
||
{
|
||
set(Poco::Timespan(x, 0));
|
||
}
|
||
|
||
void set(const Field & x)
|
||
{
|
||
set(safeGet<UInt64>(x));
|
||
}
|
||
|
||
void set(const String & x)
|
||
{
|
||
set(parse<UInt64>(x));
|
||
}
|
||
|
||
void set(ReadBuffer & buf)
|
||
{
|
||
UInt64 x = 0;
|
||
readVarUInt(x, buf);
|
||
set(x);
|
||
}
|
||
|
||
void write(WriteBuffer & buf) const
|
||
{
|
||
writeVarUInt(value.totalSeconds(), buf);
|
||
}
|
||
};
|
||
|
||
|
||
struct SettingMilliseconds
|
||
{
|
||
Poco::Timespan value;
|
||
bool changed = false;
|
||
|
||
SettingMilliseconds(UInt64 milliseconds = 0) : value(milliseconds * 1000) {}
|
||
|
||
operator Poco::Timespan() const { return value; }
|
||
SettingMilliseconds & operator= (Poco::Timespan x) { set(x); return *this; }
|
||
|
||
Poco::Timespan::TimeDiff totalMilliseconds() const { return value.totalMilliseconds(); }
|
||
|
||
String toString() const
|
||
{
|
||
return DB::toString(totalMilliseconds());
|
||
}
|
||
|
||
void set(Poco::Timespan x)
|
||
{
|
||
value = x;
|
||
changed = true;
|
||
}
|
||
|
||
void set(UInt64 x)
|
||
{
|
||
set(Poco::Timespan(x * 1000));
|
||
}
|
||
|
||
void set(const Field & x)
|
||
{
|
||
set(safeGet<UInt64>(x));
|
||
}
|
||
|
||
void set(const String & x)
|
||
{
|
||
set(parse<UInt64>(x));
|
||
}
|
||
|
||
void set(ReadBuffer & buf)
|
||
{
|
||
UInt64 x = 0;
|
||
readVarUInt(x, buf);
|
||
set(x);
|
||
}
|
||
|
||
void write(WriteBuffer & buf) const
|
||
{
|
||
writeVarUInt(value.totalMilliseconds(), buf);
|
||
}
|
||
};
|
||
|
||
|
||
struct SettingFloat
|
||
{
|
||
float value;
|
||
bool changed = false;
|
||
|
||
SettingFloat(float x = 0) : value(x) {}
|
||
|
||
operator float() const { return value; }
|
||
SettingFloat & operator= (float x) { set(x); return *this; }
|
||
|
||
String toString() const
|
||
{
|
||
return DB::toString(value);
|
||
}
|
||
|
||
void set(float x)
|
||
{
|
||
value = x;
|
||
changed = true;
|
||
}
|
||
|
||
void set(const Field & x)
|
||
{
|
||
if (x.getType() == Field::Types::UInt64)
|
||
{
|
||
set(safeGet<UInt64>(x));
|
||
}
|
||
else if (x.getType() == Field::Types::Int64)
|
||
{
|
||
set(safeGet<Int64>(x));
|
||
}
|
||
else if (x.getType() == Field::Types::Float64)
|
||
{
|
||
set(safeGet<Float64>(x));
|
||
}
|
||
else
|
||
throw Exception(std::string("Bad type of setting. Expected UInt64, Int64 or Float64, got ") + x.getTypeName(), ErrorCodes::TYPE_MISMATCH);
|
||
}
|
||
|
||
void set(const String & x)
|
||
{
|
||
set(parse<float>(x));
|
||
}
|
||
|
||
void set(ReadBuffer & buf)
|
||
{
|
||
String x;
|
||
readBinary(x, buf);
|
||
set(x);
|
||
}
|
||
|
||
void write(WriteBuffer & buf) const
|
||
{
|
||
writeBinary(toString(), buf);
|
||
}
|
||
};
|
||
|
||
|
||
enum class LoadBalancing
|
||
{
|
||
/// среди реплик с минимальным количеством ошибок выбирается случайная
|
||
RANDOM = 0,
|
||
/// среди реплик с минимальным количеством ошибок выбирается реплика
|
||
/// с минимальным количеством отличающихся символов в имени реплики и имени локального хоста
|
||
NEAREST_HOSTNAME,
|
||
/// реплики перебираются строго по порядку; количество ошибок не имеет значение
|
||
IN_ORDER,
|
||
};
|
||
|
||
struct SettingLoadBalancing
|
||
{
|
||
LoadBalancing value;
|
||
bool changed = false;
|
||
|
||
SettingLoadBalancing(LoadBalancing x) : value(x) {}
|
||
|
||
operator LoadBalancing() const { return value; }
|
||
SettingLoadBalancing & operator= (LoadBalancing x) { set(x); return *this; }
|
||
|
||
static LoadBalancing getLoadBalancing(const String & s)
|
||
{
|
||
if (s == "random") return LoadBalancing::RANDOM;
|
||
if (s == "nearest_hostname") return LoadBalancing::NEAREST_HOSTNAME;
|
||
if (s == "in_order") return LoadBalancing::IN_ORDER;
|
||
|
||
throw Exception("Unknown load balancing mode: '" + s + "', must be one of 'random', 'nearest_hostname', 'in_order'",
|
||
ErrorCodes::UNKNOWN_LOAD_BALANCING);
|
||
}
|
||
|
||
String toString() const
|
||
{
|
||
const char * strings[] = {"random", "nearest_hostname", "in_order"};
|
||
if (value < LoadBalancing::RANDOM || value > LoadBalancing::IN_ORDER)
|
||
throw Exception("Unknown load balancing mode", ErrorCodes::UNKNOWN_LOAD_BALANCING);
|
||
return strings[static_cast<size_t>(value)];
|
||
}
|
||
|
||
void set(LoadBalancing x)
|
||
{
|
||
value = x;
|
||
changed = true;
|
||
}
|
||
|
||
void set(const Field & x)
|
||
{
|
||
set(safeGet<const String &>(x));
|
||
}
|
||
|
||
void set(const String & x)
|
||
{
|
||
set(getLoadBalancing(x));
|
||
}
|
||
|
||
void set(ReadBuffer & buf)
|
||
{
|
||
String x;
|
||
readBinary(x, buf);
|
||
set(x);
|
||
}
|
||
|
||
void write(WriteBuffer & buf) const
|
||
{
|
||
writeBinary(toString(), buf);
|
||
}
|
||
};
|
||
|
||
|
||
/// Какие строки включать в TOTALS.
|
||
enum class TotalsMode
|
||
{
|
||
BEFORE_HAVING = 0, /// Считать HAVING по всем прочитанным строкам;
|
||
/// включая не попавшие в max_rows_to_group_by
|
||
/// и не прошедшие HAVING после группировки.
|
||
AFTER_HAVING_INCLUSIVE = 1, /// Считать по всем строкам, кроме не прошедших HAVING;
|
||
/// то есть, включать в TOTALS все строки, не прошедшие max_rows_to_group_by.
|
||
AFTER_HAVING_EXCLUSIVE = 2, /// Включать только строки, прошедшие и max_rows_to_group_by, и HAVING.
|
||
AFTER_HAVING_AUTO = 3, /// Автоматически выбирать между INCLUSIVE и EXCLUSIVE,
|
||
};
|
||
|
||
struct SettingTotalsMode
|
||
{
|
||
TotalsMode value;
|
||
bool changed = false;
|
||
|
||
SettingTotalsMode(TotalsMode x) : value(x) {}
|
||
|
||
operator TotalsMode() const { return value; }
|
||
SettingTotalsMode & operator= (TotalsMode x) { set(x); return *this; }
|
||
|
||
static TotalsMode getTotalsMode(const String & s)
|
||
{
|
||
if (s == "before_having") return TotalsMode::BEFORE_HAVING;
|
||
if (s == "after_having_exclusive") return TotalsMode::AFTER_HAVING_EXCLUSIVE;
|
||
if (s == "after_having_inclusive") return TotalsMode::AFTER_HAVING_INCLUSIVE;
|
||
if (s == "after_having_auto") return TotalsMode::AFTER_HAVING_AUTO;
|
||
|
||
throw Exception("Unknown totals mode: '" + s + "', must be one of 'before_having', 'after_having_exclusive', 'after_having_inclusive', 'after_having_auto'", ErrorCodes::UNKNOWN_TOTALS_MODE);
|
||
}
|
||
|
||
String toString() const
|
||
{
|
||
switch (value)
|
||
{
|
||
case TotalsMode::BEFORE_HAVING: return "before_having";
|
||
case TotalsMode::AFTER_HAVING_EXCLUSIVE: return "after_having_exclusive";
|
||
case TotalsMode::AFTER_HAVING_INCLUSIVE: return "after_having_inclusive";
|
||
case TotalsMode::AFTER_HAVING_AUTO: return "after_having_auto";
|
||
|
||
default:
|
||
throw Exception("Unknown TotalsMode enum value", ErrorCodes::UNKNOWN_TOTALS_MODE);
|
||
}
|
||
}
|
||
|
||
void set(TotalsMode x)
|
||
{
|
||
value = x;
|
||
changed = true;
|
||
}
|
||
|
||
void set(const Field & x)
|
||
{
|
||
set(safeGet<const String &>(x));
|
||
}
|
||
|
||
void set(const String & x)
|
||
{
|
||
set(getTotalsMode(x));
|
||
}
|
||
|
||
void set(ReadBuffer & buf)
|
||
{
|
||
String x;
|
||
readBinary(x, buf);
|
||
set(x);
|
||
}
|
||
|
||
void write(WriteBuffer & buf) const
|
||
{
|
||
writeBinary(toString(), buf);
|
||
}
|
||
};
|
||
|
||
/// Что делать, если ограничение превышено.
|
||
enum class OverflowMode
|
||
{
|
||
THROW = 0, /// Кинуть исключение.
|
||
BREAK = 1, /// Прервать выполнение запроса, вернуть что есть.
|
||
ANY = 2, /** Только для GROUP BY: не добавлять новые строки в набор,
|
||
* но продолжать агрегировать для ключей, успевших попасть в набор.
|
||
*/
|
||
};
|
||
|
||
template <bool enable_mode_any>
|
||
struct SettingOverflowMode
|
||
{
|
||
OverflowMode value;
|
||
bool changed = false;
|
||
|
||
SettingOverflowMode(OverflowMode x = OverflowMode::THROW) : value(x) {}
|
||
|
||
operator OverflowMode() const { return value; }
|
||
SettingOverflowMode & operator= (OverflowMode x) { set(x); return *this; }
|
||
|
||
static OverflowMode getOverflowModeForGroupBy(const String & s)
|
||
{
|
||
if (s == "throw") return OverflowMode::THROW;
|
||
if (s == "break") return OverflowMode::BREAK;
|
||
if (s == "any") return OverflowMode::ANY;
|
||
|
||
throw Exception("Unknown overflow mode: '" + s + "', must be one of 'throw', 'break', 'any'", ErrorCodes::UNKNOWN_OVERFLOW_MODE);
|
||
}
|
||
|
||
static OverflowMode getOverflowMode(const String & s)
|
||
{
|
||
OverflowMode mode = getOverflowModeForGroupBy(s);
|
||
|
||
if (mode == OverflowMode::ANY && !enable_mode_any)
|
||
throw Exception("Illegal overflow mode: 'any' is only for 'group_by_overflow_mode'", ErrorCodes::ILLEGAL_OVERFLOW_MODE);
|
||
|
||
return mode;
|
||
}
|
||
|
||
String toString() const
|
||
{
|
||
const char * strings[] = { "throw", "break", "any" };
|
||
|
||
if (value < OverflowMode::THROW || value > OverflowMode::ANY)
|
||
throw Exception("Unknown overflow mode", ErrorCodes::UNKNOWN_OVERFLOW_MODE);
|
||
|
||
return strings[static_cast<size_t>(value)];
|
||
}
|
||
|
||
void set(OverflowMode x)
|
||
{
|
||
value = x;
|
||
changed = true;
|
||
}
|
||
|
||
void set(const Field & x)
|
||
{
|
||
set(safeGet<const String &>(x));
|
||
}
|
||
|
||
void set(const String & x)
|
||
{
|
||
set(getOverflowMode(x));
|
||
}
|
||
|
||
void set(ReadBuffer & buf)
|
||
{
|
||
String x;
|
||
readBinary(x, buf);
|
||
set(x);
|
||
}
|
||
|
||
void write(WriteBuffer & buf) const
|
||
{
|
||
writeBinary(toString(), buf);
|
||
}
|
||
};
|
||
|
||
struct SettingCompressionMethod
|
||
{
|
||
CompressionMethod value;
|
||
bool changed = false;
|
||
|
||
SettingCompressionMethod(CompressionMethod x = CompressionMethod::LZ4) : value(x) {}
|
||
|
||
operator CompressionMethod() const { return value; }
|
||
SettingCompressionMethod & operator= (CompressionMethod x) { set(x); return *this; }
|
||
|
||
static CompressionMethod getCompressionMethod(const String & s)
|
||
{
|
||
if (s == "quicklz")
|
||
{
|
||
#ifdef USE_QUICKLZ
|
||
return CompressionMethod::QuickLZ;
|
||
#else
|
||
throw Exception("QuickLZ compression method is disabled", ErrorCodes::UNKNOWN_COMPRESSION_METHOD);
|
||
#endif
|
||
}
|
||
if (s == "lz4")
|
||
return CompressionMethod::LZ4;
|
||
if (s == "lz4hc")
|
||
return CompressionMethod::LZ4HC;
|
||
if (s == "zstd")
|
||
return CompressionMethod::ZSTD;
|
||
|
||
throw Exception("Unknown compression method: '" + s + "', must be one of 'quicklz', 'lz4', 'lz4hc', 'zstd'", ErrorCodes::UNKNOWN_COMPRESSION_METHOD);
|
||
}
|
||
|
||
String toString() const
|
||
{
|
||
const char * strings[] = { "quicklz", "lz4", "lz4hc", "zstd" };
|
||
|
||
if (value < CompressionMethod::QuickLZ || value > CompressionMethod::ZSTD)
|
||
throw Exception("Unknown compression method", ErrorCodes::UNKNOWN_COMPRESSION_METHOD);
|
||
|
||
return strings[static_cast<size_t>(value)];
|
||
}
|
||
|
||
void set(CompressionMethod x)
|
||
{
|
||
value = x;
|
||
changed = true;
|
||
}
|
||
|
||
void set(const Field & x)
|
||
{
|
||
set(safeGet<const String &>(x));
|
||
}
|
||
|
||
void set(const String & x)
|
||
{
|
||
set(getCompressionMethod(x));
|
||
}
|
||
|
||
void set(ReadBuffer & buf)
|
||
{
|
||
String x;
|
||
readBinary(x, buf);
|
||
set(x);
|
||
}
|
||
|
||
void write(WriteBuffer & buf) const
|
||
{
|
||
writeBinary(toString(), buf);
|
||
}
|
||
};
|
||
|
||
/// Настройка для выполнения распределённых подзапросов внутри секций IN или JOIN.
|
||
enum class DistributedProductMode
|
||
{
|
||
DENY = 0, /// Запретить
|
||
LOCAL, /// Конвертировать в локальный запрос
|
||
GLOBAL, /// Конвертировать в глобальный запрос
|
||
ALLOW /// Разрешить
|
||
};
|
||
|
||
struct SettingDistributedProductMode
|
||
{
|
||
DistributedProductMode value;
|
||
bool changed = false;
|
||
|
||
SettingDistributedProductMode(DistributedProductMode x) : value(x) {}
|
||
|
||
operator DistributedProductMode() const { return value; }
|
||
SettingDistributedProductMode & operator= (DistributedProductMode x) { set(x); return *this; }
|
||
|
||
static DistributedProductMode getDistributedProductMode(const String & s)
|
||
{
|
||
if (s == "deny") return DistributedProductMode::DENY;
|
||
if (s == "local") return DistributedProductMode::LOCAL;
|
||
if (s == "global") return DistributedProductMode::GLOBAL;
|
||
if (s == "allow") return DistributedProductMode::ALLOW;
|
||
|
||
throw Exception("Unknown distributed product mode: '" + s + "', must be one of 'deny', 'local', 'global', 'allow'",
|
||
ErrorCodes::UNKNOWN_DISTRIBUTED_PRODUCT_MODE);
|
||
}
|
||
|
||
String toString() const
|
||
{
|
||
const char * strings[] = {"deny", "local", "global", "allow"};
|
||
if (value < DistributedProductMode::DENY || value > DistributedProductMode::ALLOW)
|
||
throw Exception("Unknown distributed product mode", ErrorCodes::UNKNOWN_DISTRIBUTED_PRODUCT_MODE);
|
||
return strings[static_cast<size_t>(value)];
|
||
}
|
||
|
||
void set(DistributedProductMode x)
|
||
{
|
||
value = x;
|
||
changed = true;
|
||
}
|
||
|
||
void set(const Field & x)
|
||
{
|
||
set(safeGet<const String &>(x));
|
||
}
|
||
|
||
void set(const String & x)
|
||
{
|
||
set(getDistributedProductMode(x));
|
||
}
|
||
|
||
void set(ReadBuffer & buf)
|
||
{
|
||
String x;
|
||
readBinary(x, buf);
|
||
set(x);
|
||
}
|
||
|
||
void write(WriteBuffer & buf) const
|
||
{
|
||
writeBinary(toString(), buf);
|
||
}
|
||
};
|
||
|
||
/// Способ выполнения глобальных распределённых подзапросов.
|
||
enum class GlobalSubqueriesMethod
|
||
{
|
||
PUSH = 0, /// Отправлять данные подзапроса на все удалённые серверы.
|
||
PULL = 1, /// Удалённые серверы будут скачивать данные подзапроса с сервера-инициатора.
|
||
};
|
||
|
||
struct SettingGlobalSubqueriesMethod
|
||
{
|
||
GlobalSubqueriesMethod value;
|
||
bool changed = false;
|
||
|
||
SettingGlobalSubqueriesMethod(GlobalSubqueriesMethod x = GlobalSubqueriesMethod::PUSH) : value(x) {}
|
||
|
||
operator GlobalSubqueriesMethod() const { return value; }
|
||
SettingGlobalSubqueriesMethod & operator= (GlobalSubqueriesMethod x) { set(x); return *this; }
|
||
|
||
static GlobalSubqueriesMethod getGlobalSubqueriesMethod(const String & s)
|
||
{
|
||
if (s == "push")
|
||
return GlobalSubqueriesMethod::PUSH;
|
||
if (s == "pull")
|
||
return GlobalSubqueriesMethod::PULL;
|
||
|
||
throw Exception("Unknown global subqueries execution method: '" + s + "', must be one of 'push', 'pull'",
|
||
ErrorCodes::UNKNOWN_GLOBAL_SUBQUERIES_METHOD);
|
||
}
|
||
|
||
String toString() const
|
||
{
|
||
const char * strings[] = { "push", "pull" };
|
||
|
||
if (value < GlobalSubqueriesMethod::PUSH || value > GlobalSubqueriesMethod::PULL)
|
||
throw Exception("Unknown global subqueries execution method", ErrorCodes::UNKNOWN_GLOBAL_SUBQUERIES_METHOD);
|
||
|
||
return strings[static_cast<size_t>(value)];
|
||
}
|
||
|
||
void set(GlobalSubqueriesMethod x)
|
||
{
|
||
value = x;
|
||
changed = true;
|
||
}
|
||
|
||
void set(const Field & x)
|
||
{
|
||
set(safeGet<const String &>(x));
|
||
}
|
||
|
||
void set(const String & x)
|
||
{
|
||
set(getGlobalSubqueriesMethod(x));
|
||
}
|
||
|
||
void set(ReadBuffer & buf)
|
||
{
|
||
String x;
|
||
readBinary(x, buf);
|
||
set(x);
|
||
}
|
||
|
||
void write(WriteBuffer & buf) const
|
||
{
|
||
writeBinary(toString(), buf);
|
||
}
|
||
};
|
||
|
||
|
||
struct SettingString
|
||
{
|
||
String value;
|
||
bool changed = false;
|
||
|
||
SettingString(const String & x = String{}) : value(x) {}
|
||
|
||
operator String() const { return value; }
|
||
SettingString & operator= (const String & x) { set(x); return *this; }
|
||
|
||
String toString() const
|
||
{
|
||
return value;
|
||
}
|
||
|
||
void set(const String & x)
|
||
{
|
||
value = x;
|
||
changed = true;
|
||
}
|
||
|
||
void set(const Field & x)
|
||
{
|
||
set(safeGet<const String &>(x));
|
||
}
|
||
|
||
void set(ReadBuffer & buf)
|
||
{
|
||
String x;
|
||
readBinary(x, buf);
|
||
set(x);
|
||
}
|
||
|
||
void write(WriteBuffer & buf) const
|
||
{
|
||
writeBinary(value, buf);
|
||
}
|
||
};
|
||
|
||
}
|