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This extension adds a new capability for spatially indexing geometry columns. This extension uses the rtree implementation provided by the SQLite R*Tree Module extension.
gpkg_extensions
Add a row to this table for each geometry type to be indexed.
Column | Value |
---|---|
table_name |
table containing geometry to index |
column_name |
column containing geometry to index |
extension_name |
gpkg_rtree_index |
definition |
http://www.geopackage.org/spec120/#extension_rtree |
scope |
write-only |
The spatial index is established by creating a virtual table and a set of triggers. These are detailed in Appendix F.3.