Scale Your Spatial Analysis By Building It In SQL With Syntax Extensions
Data Engineering Podcast
00:00
Post G I S, and Other Implementations of Post S
Post g i s is probably the most well known implementation of that. Most spatial functions, well above 90 %, are going to startwith with s t,. And so it's s t underscore, and then you can see the different functions. But there's also the plakis said, if you go to that patial feature, engineering, no spacial relationships. There's a project called g omasotot implements that, and like a spark ecosystem as well.
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Summary
Along with globalization of our societies comes the need to analyze the geospatial and geotemporal data that is needed to manage the growth in commerce, communications, and other activities. In order to make geospatial analytics more maintainable and scalable there has been an increase in the number of database engines that provide extensions to their SQL syntax that supports manipulation of spatial data. In this episode Matthew Forrest shares his experiences of working in the domain of geospatial analytics and the application of SQL dialects to his analysis.
Announcements
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- Your host is Tobias Macey and today I’m interviewing Matthew Forrest about doing spatial analysis in SQL
Interview
- Introduction
- How did you get involved in the area of data management?
- Can you describe what spatial SQL is and some of the use cases that it is relevant for?
- compatibility with/comparison to syntax from PostGIS
- What is involved in implementation of spatial logic in database engines
- mapping geospatial concepts into declarative syntax
- foundational data types
- data modeling
- workflow for analyzing spatial data sets outside of database engines
- translating from e.g. geopandas to SQL
- level of support in database engines for spatial data types
- What are the most interesting, innovative, or unexpected ways that you have seen spatial SQL used?
- What are the most interesting, unexpected, or challenging lessons that you have learned while working with spatial SQL?
- When is SQL the wrong choice for spatial analysis?
- What do you have planned for the future of spatial analytics support in SQL for the Carto platform?
Contact Info
Parting Question
- From your perspective, what is the biggest gap in the tooling or technology for data management today?
Closing Announcements
- Thank you for listening! Don’t forget to check out our other show, Podcast.__init__ to learn about the Python language, its community, and the innovative ways it is being used.
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Links
- Carto
- Spatial SQL Blog Post
- Spatial Analysis
- PostGIS
- QGIS
- KML
- Shapefile
- GeoJSON
- Paul Ramsey’s Blog
- Norwegian SOSI
- GDAL
- Google Cloud Dataflow
- GeoBEAM
- Carto Data Observatory
- WGS84 Projection
- EPSG Code
- PySAL
- GeoMesa
- Uber H3 Spatial Indexing
- PGRouting
- Spatialite
The intro and outro music is from The Hug by The Freak Fandango Orchestra / CC BY-SA
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