Domain Operations

`pgm.createDomain( domain_name, type, options )`

Create a new domain - postgres docs

Arguments:

domain_name [Name] - name of the new domain
type [string] - type of the new domain
options [object] - options:
- default [string] - default value of domain
- collation [string] - collation of data type
- notNull [boolean] - sets NOT NULL if true (not recommended)
- check [string] - sql for a check constraint for this column
- constraintName [string] - name for constraint

Reverse Operation: dropDomain

`pgm.dropDomain( domain_name, drop_options )`

Drop a domain - postgres docs

Arguments:

domain_name [Name] - name of the the domain to drop
drop_options [object] - options:
- ifExists [boolean] - drops domain only if it exists
- cascade [boolean] - drops also dependent objects

`pgm.alterDomain( domain_name, type, options )`

Alter a domain - postgres docs

Arguments:

domain_name [Name] - name of the new domain
options [object] - options:
- default [string] - default value of domain
- collation [string] - collation of data type
- notNull [boolean] - sets NOT NULL if true or NULL if false
- allowNull [boolean] - sets NULL if true (alternative to notNull)
- check [string] - sql for a check constraint for this column
- constraintName [string] - name for constraint

`pgm.renameDomain( old_domain_name, new_domain_name )`

Rename a domain - postgres docs

Arguments:

old_domain_name [Name] - old name of the domain
new_domain_name [Name] - new name of the domain