April 2011
Beginner to intermediate
520 pages
18h 55m
English
Content preview from PostGIS in Action
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Chapter 10. Enhancing SQL with add-ons
This chapter covers
- TIGER geocoder
- pgRouting
- PL/R
- PL/Python
In this chapter, we’ll cover common open source add-on tools that are often used to enhance the functionality of PostgreSQL. What makes these tools special is that they unleash the power of SQL, so you can write much more powerful queries than you can with PostGIS and PostgreSQL alone. They also allow for greater abstraction of logic, because you can reuse these same functions and database triggers across all your application queries.
The tools we’ll be covering are as follows:
- Topologically Integrated Geographic Encoding and Referencing (TIGER) geocoder— A geocoding toolkit with scripts for loading U.S. Census TIGER street data and approximating ...
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