Method alias

python/ray/data/expressions.py:569–590

Rename the expression. This method allows you to assign a new name to an expression result. This is particularly useful when you want to specify the output column name directly within the expression rather than as a separate parameter. Args: name: The ne

(self, name: str)

        return self._bin(values, Operation.NOT_IN)

    def alias(self, name: str) -> "Expr":
        """Rename the expression.

        This method allows you to assign a new name to an expression result.
        This is particularly useful when you want to specify the output column name
        directly within the expression rather than as a separate parameter.

        Args:
            name: The new name for the expression

        Returns:
            An AliasExpr that wraps this expression with the specified name

        Example:
            >>> from ray.data.expressions import col, lit
            >>> # Create an expression with a new aliased name
            >>> expr = (col("price") * col("quantity")).alias("total")
            >>> # Can be used with Dataset operations that support named expressions
        """
        return AliasExpr(
            data_type=self.data_type, expr=self, _name=name, _is_rename=False
        )

    # rounding helpers
    def ceil(self) -> "UDFExpr":