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PostGIS is an open-source, freely available spatial database extension for the PostgreSQL Database Management System. In a nutshell, PostGIS adds spatial functions such as distance, area, union, intersection, and specialty geometry data types to PostgreSQL. So in a normal database, you store data of different types (numeric, text, timestamps, images…) which can help you answer questions like ‘how many people logged on to your website’ or ‘how many transactions have been made in an online store’. Spatial functions can instead answer questions like ‘how close is the nearest shop’, ‘is this point inside this area’ or ‘what is the size of this country’. This session will help attendees understand Spatial data types, Multi-dimensional spatial indexing, and Spatial functions.