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type is:  ( ++             | int     | bool     | str    | ts        | time | date |  bit  | char      | dec     | real | float | money )
or
type is:  ( auto increment | integer | boolean  | string | timestamp | time | date |  bit  | character | decimal | real | float | money )
        

range  is:  [ value ]..[ value ] 
                  min..max

option is:  ( _range_  | d        | p       | r        | u        )
or
option is:  ( _range_  | default  | primary | required | unique[ :_group_ ] )
        

attribute is:  _name_ as _type_ [ with _option_ [ , ... ] ] 
or
attribute is:  @( _entity_ | _schema_._entity_ ) [ as _alias_ ] [ with _option_ [ , ... ] ] 
        

# _schema_

## _entity_
- _attribute_
        

# People

## Author
- id as ++
- first name as string with unique:full name, required, 3..32
- last name as str with u:full name, u:last name, r, ..30
- dob as date with 2006-01-02..

# Library

## Category
- id as ++
- name as str with u, r, 3..30

## Book
- id as ++
- title as str with u, r, ..50
- published as ts with default:now
- @category with r

## Publication
- @book with primary
- @people.author with primary
- flags as bit with ..16