daft.functions.deserialize#

deserialize #

deserialize(expr: Expression, format: Literal['json'], dtype: DataTypeLike) -> Expression

Deserializes a string using the specified format and data type.

Parameters:

Name	Type	Description	Default
`expr`	`Expression`	The expression to deserialize.	required
`format`	`Literal['json']`	The serialization format.	required
`dtype`	`DataTypeLike`	The target data type to deserialize into.	required

Returns:

Name	Type	Description
`Expression`	`Expression`	A new expression with the deserialized value.

Source code in daft/functions/str.py

def deserialize(expr: Expression, format: Literal["json"], dtype: DataTypeLike) -> Expression:
    """Deserializes a string using the specified format and data type.

    Args:
        expr: The expression to deserialize.
        format (Literal["json"]): The serialization format.
        dtype: The target data type to deserialize into.

    Returns:
        Expression: A new expression with the deserialized value.
    """
    dtype = DataType._infer(dtype)
    return Expression._call_builtin_scalar_fn("deserialize", expr, format=format, dtype=dtype._dtype)