Table Operations

`pgm.createTable( tablename, columns, options )`

Create a new table - postgres docs

Arguments:

tablename [string] - name for the new table
columns [object] - column names / options -- see column definitions section
options [object] - table options (optional)
- temporary [bool] - default false
- ifNotExists [bool] - default false
- inherits [string] - table(s) to inherit from
- constraints [object] - table constraints see add constraint
- like [string] - table(s) to inherit from
- comment [string] - adds comment on table

Reverse Operation: dropTable

`pgm.dropTable( tablename, options )`

Drop existing table - postgres docs

Arguments:

tablename [string] - name of the table to drop
options [object] - options:
- ifExists [boolean] - drops table only if it exists
- cascade [boolean] - drops also dependent objects

`pgm.renameTable( tablename, new_tablename )`

Rename a table - postgres docs

Arguments:

tablename [string] - name of the table to rename
new_table [object] - new name of the table

Reverse Operation: same operation in opposite direction

`pgm.alterTable( tablename, options )`

Alter existing table - postgres docs

Arguments:

tablename [string] - name of the table to alter
options [object] - options:
- levelSecurity [string] - DISABLE, ENABLE, FORCE, or NO FORCE