pgcrockford: Crockford Base 32 encoding for unsigned ints
The pgcrockford extension provides Base 32 encoded integers as a
PostgreSQL base type. From [Douglas Crockford's
requirements][crockford] for the specification, the encoding should
> - Be human readable and machine readable.
> - Be compact. Humans have difficulty in manipulating long strings of arbitrary symbols.
> - Be error resistant. Entering the symbols must not require keyboarding gymnastics.
> - Be pronounceable. Humans should be able to accurately transmit the symbols to other humans using a telephone.
The motivation for pgcrockford is to provide a more humane display of
values used for surrogate keys while preserving space efficiency:
crockford values are represented as alpha-numeric strings while using
unsigned integers for their implementation.