Cast Operations

Operation: createCast

pgm.createCast( source_type, target_type, opttions )

IMPORTANT

Create a new cast - postgres docs

Arguments

Name	Type	Description
source_type	string	The name of the source data type of the cast
target_type	string	The name of the target data type of the cast
options	object	Check below for available options

Options

Option	Type	Description
functionName	string	Name of function to use to do the cast
argumentTypes	array	Array of types of arguments for the function
inout	boolean	Use standard I/O routines for conversion
as	string	Indicate when this may cast may be done implicitly

Tips

• argumentTypes: Is an array of strings listing the types of arguments for the conversion function. If this is not present, it defaults to just the source_type.

• inout: Setting this to true indicates that conversion should be used by using the standard text output conversion for source_type and passing the result to the input conversion process for target_type.

• as: This may be either assignment or implicit. If implicit is used, the cast may be used implicitly in any context; this is not recommended. If assignment is used the cast will only be done implicitly in assignments.

Reverse Operation: dropCast

pgm.dropCast( source_type, target_type )

IMPORTANT

Drop a cast - postgres docs

Arguments

Name	Type	Description
source_type	string	The name of the source data type of the cast
target_type	string	The name of the target data type of the cast
options	object	Check below for available options

Options

Option	Type	Description
ifExists	boolean	Do not throw an error if the cast does not exist