[SEDONA-251] Add raster type to Sedona

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.4.0
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: Martin Andersson
• Created: 21/Feb/23 09:48
• Updated: 14/Jun/23 05:39
• Resolved: 13/Mar/23 21:35

Description

Adding a raster type would enable a lot of use cases.

A raster has grid values, an evelope, a coorinate referens system and other metadata.

The current raster functions operate on arrays of doubles. The metadata is kept in separate columns created by the custom data source for geotiff. That is making rasters unnecessary hard to work with. A raster type would close the gap between Sedona and other raster SQL implementations like Postgis.

See discussion on Sedona mailing list:

https://lists.apache.org/thread/qdfcvxl6z5pb7m7ky5zsksyytyxqwv8c

 

 

Issue Links

• fixes: SEDONA-289 On the correctness of accessing geometry attribute value of raster data
• is a parent of: SEDONA-254 R – Add raster type
• links to: GitHub Pull Request #773