Chapter 1, Moving Data In and Out of PostGIS, covers the processes available for importing and exporting spatial and non-spatial data to and from PostGIS. These processes include the use of utilities provided by PostGIS and by third parties, such as GDAL/OGR.
Chapter 2, Structures That Work, discusses how to organize PostGIS data using mechanisms available through PostgreSQL. These mechanisms are used to normalize potentially unclean and unstructured import data.
Chapter 3, Working with Vector Data – The Basics, introduces PostGIS operations commonly done on vectors, known as geometries and geographies in PostGIS. Operations covered include the processing of invalid geometries, determining relationships between geometries, ...
