duckdb::CastFunctionSet Class Reference

Collaboration diagram for duckdb::CastFunctionSet:

Public Member Functions
	CastFunctionSet (DBConfig &config)
DUCKDB_API BoundCastInfo	GetCastFunction (const LogicalType &source, const LogicalType &target, GetCastFunctionInput &input)
DUCKDB_API int64_t	ImplicitCastCost (optional_ptr< ClientContext > context, const LogicalType &source, const LogicalType &target)
DUCKDB_API void	RegisterCastFunction (const LogicalType &source, const LogicalType &target, BoundCastInfo function, int64_t implicit_cast_cost=-1)
	Register a new cast function from source to target.
DUCKDB_API void	RegisterCastFunction (const LogicalType &source, const LogicalType &target, bind_cast_function_t bind, int64_t implicit_cast_cost=-1)

Static Public Member Functions
static DUCKDB_API CastFunctionSet &	Get (ClientContext &context)
static DUCKDB_API CastFunctionSet &	Get (DatabaseInstance &db)
static DUCKDB_API int64_t	ImplicitCastCost (ClientContext &context, const LogicalType &source, const LogicalType &target)
static DUCKDB_API int64_t	ImplicitCastCost (DatabaseInstance &db, const LogicalType &source, const LogicalType &target)

Private Member Functions
void	RegisterCastFunction (const LogicalType &source, const LogicalType &target, MapCastNode node)

Private Attributes
optional_ptr< DBConfig >	config
vector< BindCastFunction >	bind_functions
optional_ptr< MapCastInfo >	map_info
	If any custom cast functions have been defined using RegisterCastFunction, this holds the map.

Member Function Documentation

GetCastFunction()

DUCKDB_API BoundCastInfo duckdb::CastFunctionSet::GetCastFunction	(	const LogicalType &	source,
		const LogicalType &	target,
		GetCastFunctionInput &	input
	)

Returns a cast function (from source -> target) Note that this always returns a function - since a cast is ALWAYS possible if the value is NULL

ImplicitCastCost()

DUCKDB_API int64_t duckdb::CastFunctionSet::ImplicitCastCost	(	optional_ptr< ClientContext >	context,
		const LogicalType &	source,
		const LogicalType &	target
	)

Returns the implicit cast cost of casting from source -> target -1 means an implicit cast is not possible

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The documentation for this class was generated from the following file:

• external/duckdb/duckdb.hpp