ST_GEOMETRY spatial indexes (in Oracle): Do they use domain indexes or grid indexes?

[Bud]

SDE.ST_GEOMETRY spatial indexes (in Oracle 18c):

I’ve read that the indexes are domain indexes. I’ve also read that they’re grid indexes.

Which is it? Or is it both?

Thanks.

[JonEmch]

Hey there Bud,

   Thank you for posting! Through my research, I found these documents that indicate the support for both:

• Spatial indexes in the geodatabase | ArcGIS Pro | Documentation
• ST_Geometry in Oracle | ArcGIS Pro | Documentation

I am doing a bit more groundwork to confirm, appreciate you for hanging on!