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→PostgreSQL Specifications
* Data Types
: Binary - hex
:: PostgreSQL can not store values of more than several thousands bytes within any data-type except large objects, nor can binary data be easily entered within single quotes. Instead, large objects (BLOB) are used to store very large values and binary data.
: bit & bit varying - for storing binaries [http://www.postgresql.org/docs/8.1/static/datatype-bit.html]