tried glue but found it can ONLY exec and return single strings

src/rust/Cargo.toml

@@ -4,3 +4,5 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+futures = "0.3.31"
+gluesql = { version = "0.16.3", features = ["gluesql_memory_storage"] }

src/rust/src/lib.rs

@@ -1,5 +1,53 @@
-pub fn add(left: u64, right: u64) -> u64 {
+mod main {
-    left + right
+   use {
+      gluesql::{
+         gluesql_memory_storage::MemoryStorage,
+         prelude::Glue,
+         core::store::{GStore, GStoreMut},
+         core::ast::Statement,
+      }
+   };
+
+   pub fn run() {
+      let mut db = DB::new(Glue::new(MemoryStorage::default()));
+      db.init().expect("db init failed");
+   }
+
+   struct DB<T: GStore + GStoreMut> {
+      db: Glue<T>,
+   }
+
+   impl<T: GStore + GStoreMut> DB<T> {
+      fn new(db: Glue<T>) -> DB<T> {
+         DB{db: db}
+      }
+
+      fn init(self: &mut DB<T>) -> Result<(), String> {
+         self.exec("DROP TABLE IF EXISTS t")?;
+         self.exec("DROP TABLE IF EXISTS t2")?;
+         self.exec("CREATE TABLE t (id INTEGER PRIMARY KEY, k TEXT, v TEXT)")?;
+         self.exec("CREATE TABLE t2 (id INTEGER PRIMARY KEY, t_id INTEGER, FOREIGN KEY (t_id) REFERENCES t (id))")?;
+         Ok(())
+      }
+
+      fn exec(self: &mut DB<T>, q: &str) -> Result<(), String> {
+         futures::executor::block_on(async {
+            match self.db.execute(q).await {
+               Ok(_) => Ok(()),
+               Err(err) => Err(err.to_string())
+            }
+         })
+      }
+
+      fn insert(self: &mut DB<T>, q: &str) -> Result<(), String> {
+         futures::executor::block_on(async {
+            match self.db.execute(q).await {
+               Ok(_) => Ok(()),
+               Err(err) => Err(err.to_string())
+            }
+         })
+      }
+   }
 }
 
 #[cfg(test)]
@@ -7,8 +55,7 @@ mod tests {
    use super::*;
 
     #[test]
-    fn it_works() {
+   fn mvp() {
-        let result = add(2, 2);
+      main::run();
-        assert_eq!(result, 4);
    }
 }