fix: custom settings for duckdb (#682)

Author: gadomski

Cargo.toml

@@ -25,7 +25,7 @@ homepage = "https://stac-utils.github.io/stac-rs"
 repository = "https://github.com/stac-utils/stac-rs"
 license = "MIT OR Apache-2.0"
 categories = ["science", "data-structures"]
-rust-version = "1.82"
+rust-version = "1.83"
 
 [workspace.dependencies]
 anyhow = "1.0"

crates/duckdb/src/lib.rs

@@ -200,12 +200,12 @@ impl Client {
         let connection = Connection::open_in_memory()?;
         if let Some(ref custom_extension_repository) = config.custom_extension_repository {
             connection.execute(
-                "SET custom_extension_repository = '?'",
+                "SET custom_extension_repository = ?",
                 [custom_extension_repository],
             )?;
         }
         if let Some(ref extension_directory) = config.extension_directory {
-            connection.execute("SET extension_directory = '?'", [extension_directory])?;
+            connection.execute("SET extension_directory = ?", [extension_directory])?;
         }
         if config.install_extensions {
             connection.execute("INSTALL spatial", [])?;
@@ -606,6 +606,27 @@ mod tests {
             .unwrap();
     }
 
+    #[test]
+    fn extension_directory() {
+        let _mutex = MUTEX.lock().unwrap();
+        let temp_dir = std::env::temp_dir();
+        let config = Config {
+            extension_directory: Some(temp_dir.to_string_lossy().to_string()),
+            ..Default::default()
+        };
+        let _ = Client::with_config(config).unwrap();
+    }
+
+    #[test]
+    fn custom_extension_repository() {
+        let _mutex = MUTEX.lock().unwrap();
+        let config = Config {
+            custom_extension_repository: Some(".".to_string()),
+            ..Default::default()
+        };
+        let _ = Client::with_config(config).unwrap();
+    }
+
     #[rstest]
     fn search_all(client: Client) {
         let item_collection = client