... We present two contribution modules for PostgreSQL: pgSphere, offering the capability for dealing with geometrical ob jects in spherical coordinates, and pgAstro, based on the pgSphere, providing astronomy-specific functions and methods 1. ... It is full featured database solution, it is extensible and high-performance, it has support for user-written data types and access methods and for GiST access methods, but it is very expensive. ... SDSS pro ject successfully uses this DBMS. ...

NASA JOHNSON SPACE CENTER ORAL HISTORY PROJECT BIOGRAPHICAL DATA SHEET NAME: Thomas W. Tommy Holloway O RAL H ISTORY: 25 July 2002 EDUCATIONAL BACKGROUND: B.S. in Mechanical Engineering, University of Arkansas, Fayetteville, Arkansas ... management courses, including the Massachusetts Institute of Technology-Harvard (Cambridge, Massachusetts) University Public Disputes Program NASA INVOLVEMENT: NASA Manned Spacecraft ...