API with NestJS #185. Operations with PostGIS Polygons in PostgreSQL and Drizzle
Briefly

The article discusses working with polygons in PostgreSQL using PostGIS, specifically through both raw SQL queries and Drizzle ORM. It describes operations such as checking for overlaps between polygons, determining if one polygon contains another, and calculating the intersection of two polygons. Additionally, it emphasizes the importance of using the correct Spatial Reference System Identifier (SRID) for interpreting geographical data accurately. The steps provided enhance understanding of implementing these functionalities effectively for geographical queries.
To perform spatial operations with polygons in PostgreSQL using Drizzle ORM, you must utilize raw SQL queries alongside ORM capabilities for tasks like checking overlaps and intersections.
The SRID (Spatial Reference System Identifier) is crucial in geographic data, guiding PostGIS in interpreting coordinates appropriately, as demonstrated using latitude and longitude in polygon operations.
When working with polygons in PostGIS, functions like 'ST_Overlay' can determine overlaps and intersections, while ensuring all spatial data is correctly referenced using the defined SRID.
Inserting polygons into a database can be achieved through GeoJSON format, enabling a robust interaction with geographical data using PostgreSQL and leveraging Drizzle ORM for efficient querying.
Read at Marcin Wanago Blog - JavaScript, both frontend and backend
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