Formulas

The following are the available values for the columns[].formula.name and columns[].formula.args fields in Schema.

For example,

Name	Description	Type	Args
AddInt	Sum up int	int	List of columns containing int. For example, ["schema1.col1", "schema2.col2", ...]
AddFloat	Sum up float	float	List of columns containing float. For example, ["schema1.col1", "schema2.col2", ...]
AddString	Concatenate string	string	List of columns containing string. For example, ["schema1.col1", "schema2.col2", ...]
And	Apply && Operator	bool	List of columns containing bool. For example, ["schema1.col1", "schema2.col2", ...]
Or	Apply || Operator	bool	List of columns containing bool. For example, ["schema1.col1", "schema2.col2", ...]
XOrInt	Apply | Operator	int	List of columns containing int. For example, ["schema1.col1", "schema2.col2", ...]
Copy	Copy value from given column	any	One column. For example, ["schema1.col1"]
CurrentTimeMs	Current time in Unix milliseconds	int64	[]
ToUnixMilli	Convert date like 2006-01-02 to Unix milliseconds	int64	One column. For example, ["schema1.col1"]
AddRandomTimeMs	Copy value from given column, and add a random number between minimum and maximum to it	int64	One column, a minimum integer in string, and a maximum integer in string. For example, ["schema1.col1", "-100", "100"]
AddRandomNumber	Copy value from given column, and add a random number between minimum and maximum to it	int	One column, a minimum integer in string, and a maximum integer in string. For example, ["schema1.col1", "-100", "100"]