mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-15 10:52:30 +00:00
24 lines
873 B
C++
24 lines
873 B
C++
#pragma once
|
|
|
|
#include <Core/Field.h>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
class IDataType;
|
|
|
|
/** Used to interpret expressions in a set in IN,
|
|
* and also in the query of the form INSERT ... VALUES ...
|
|
*
|
|
* To work correctly with expressions of the form `1.0 IN (1)` or, for example, `1 IN (1, 2.0, 2.5, -1)` work the same way as `1 IN (1, 2)`.
|
|
* Checks for the compatibility of types, checks values fall in the range of valid values of the type, makes type conversion.
|
|
* If the value does not fall into the range - returns Null.
|
|
*/
|
|
Field convertFieldToType(const Field & from_value, const IDataType & to_type, const IDataType * from_type_hint = nullptr);
|
|
|
|
/// Does the same, but throws ARGUMENT_OUT_OF_BOUND if value does not fall into the range.
|
|
Field convertFieldToTypeOrThrow(const Field & from_value, const IDataType & to_type, const IDataType * from_type_hint = nullptr);
|
|
|
|
}
|