storages::clickhouse::io Namespace Reference

Detailed Description

uClickHouse input-output.

Namespace containing classes and functions for defining datatype input-output and specifying mapping between C++ and ClickHouse types.

Namespaces
namespace	columns
	uClickHouse columns.

Classes
class	ColumnsMapper
struct	CppToClickhouse
class	FloatingWithPrecision
	Class that can be escaped for clickhouse queries instead of [double] and [float]. [double] and [float] are escaped as FloatingWithPrecision<double, 12> and FloatingWithPrecision<float, 6> respectively. These constants were derived from the accuracity the numbers from ranges [0.0-100000.0] (doubles) and [0.0-100.0] (floats) can be represented by these type. Clickhouse also supports inf, -inf and nan, see clickhouse docs. More...
class	RowsMapper

Typedefs
using	DateTime64Milli = ::utils::StrongTypedef< columns::DateTime64ColumnMilli::Tag, std::chrono::system_clock::time_point >
	StrongTypedef for serializing system_clock::time_point to DateTime64(3) format when used as a query argument.
using	DateTime64Micro = ::utils::StrongTypedef< columns::DateTime64ColumnMicro::Tag, std::chrono::system_clock::time_point >
	StrongTypedef for serializing system_clock::time_point to DateTime64(6) format when used as a query argument.
using	DateTime64Nano = ::utils::StrongTypedef< columns::DateTime64ColumnNano::Tag, std::chrono::system_clock::time_point >
	StrongTypedef for serializing system_clock::time_point to DateTime64(9) format when used as a query argument.

Typedef Documentation

DateTime64Micro

using storages::clickhouse::io::DateTime64Micro = typedef ::utils::StrongTypedef<columns::DateTime64ColumnMicro::Tag, std::chrono::system_clock::time_point>

StrongTypedef for serializing system_clock::time_point to DateTime64(6) format when used as a query argument.

Definition at line 20 of file typedefs.hpp.

DateTime64Milli

using storages::clickhouse::io::DateTime64Milli = typedef ::utils::StrongTypedef<columns::DateTime64ColumnMilli::Tag, std::chrono::system_clock::time_point>

StrongTypedef for serializing system_clock::time_point to DateTime64(3) format when used as a query argument.

Definition at line 15 of file typedefs.hpp.

DateTime64Nano

using storages::clickhouse::io::DateTime64Nano = typedef ::utils::StrongTypedef<columns::DateTime64ColumnNano::Tag, std::chrono::system_clock::time_point>

StrongTypedef for serializing system_clock::time_point to DateTime64(9) format when used as a query argument.

Definition at line 25 of file typedefs.hpp.