fix: enable SQLite RTree extension

README.md

@@ -306,6 +306,8 @@ NITRO_SQLITE_USE_PHONE_VERSION=1 npx pod-install
 
 ## Compile-time options (e.g. FTS5, Geopoly)
 
+The bundled SQLite build enables the RTree extension by default on iOS and Android.
+
 **iOS** — in your app’s `ios/Podfile`, in a `post_install` block:
 
 ```ruby

example/tests/unit/specs/operations/execute.spec.ts

@@ -137,6 +137,37 @@ export default function registerExecuteUnitTests() {
       })
     })
 
+    describe('SQLite extensions', () => {
+      it('creates and queries an RTree virtual table', () => {
+        testDb.execute('DROP TABLE IF EXISTS SpatialIndex')
+
+        try {
+          testDb.execute(`
+            CREATE VIRTUAL TABLE SpatialIndex USING rtree(
+              id,
+              minX, maxX,
+              minY, maxY
+            )
+          `)
+          testDb.execute(
+            'INSERT INTO SpatialIndex (id, minX, maxX, minY, maxY) VALUES (?, ?, ?, ?, ?)',
+            [1, 10, 20, 30, 40],
+          )
+
+          const result = testDb.execute(
+            'SELECT id, minX, maxX, minY, maxY FROM SpatialIndex WHERE minX <= ? AND maxX >= ?',
+            [15, 15],
+          )
+
+          expect(result.results).toEqual([
+            { id: 1, minX: 10, maxX: 20, minY: 30, maxY: 40 },
+          ])
+        } finally {
+          testDb.execute('DROP TABLE IF EXISTS SpatialIndex')
+        }
+      })
+    })
+
     describe('ArrayBuffer support', () => {
       describe('execute', () => {
         it('stores and reads ArrayBuffer values from BLOB columns', () => {

packages/react-native-nitro-sqlite/RNNitroSQLite.podspec

@@ -50,7 +50,7 @@ Pod::Spec.new do |s|
     'CLANG_CXX_LIBRARY' => 'libc++',
     'DEFINES_MODULE' => 'YES',
     "HEADER_SEARCH_PATHS" => "\"${PODS_ROOT}/RCT-Folly\"" + (nitro_sqlite_vec ? " \"#{nitro_sqlite_vec_cpp}\"" : ""),
-    "GCC_PREPROCESSOR_DEFINITIONS" => "$(inherited) FOLLY_NO_CONFIG FOLLY_CFG_NO_COROUTINES" + (nitro_sqlite_vec ? " NITRO_SQLITE_VEC=1" : ""),
+    "GCC_PREPROCESSOR_DEFINITIONS" => "$(inherited) FOLLY_NO_CONFIG FOLLY_CFG_NO_COROUTINES SQLITE_ENABLE_RTREE=1" + (nitro_sqlite_vec ? " NITRO_SQLITE_VEC=1" : ""),
     "OTHER_CPLUSPLUSFLAGS" => folly_compiler_flags,
     "OTHER_CFLAGS" => other_cflags,
   }

packages/react-native-nitro-sqlite/android/CMakeLists.txt

@@ -5,6 +5,7 @@ set (CMAKE_VERBOSE_MAKEFILE ON)
 set (CMAKE_CXX_STANDARD 20)
 
 add_definitions(
+  -DSQLITE_ENABLE_RTREE=1
   ${SQLITE_FLAGS}
 )