diff --git a/backend/windmill-common/src/lib.rs b/backend/windmill-common/src/lib.rs
index ee9c25a3e5..db8b5916cf 100644
--- a/backend/windmill-common/src/lib.rs
+++ b/backend/windmill-common/src/lib.rs
@@ -404,30 +404,6 @@ impl PgDatabase {
         )
     }
 
-    pub fn to_conn_str(&self) -> String {
-        format!(
-            "dbname={dbname} {user} host={host} {password} {port} {sslmode}",
-            dbname = self.dbname,
-            user = self
-                .user
-                .as_ref()
-                .map(|u| format!("user={}", urlencoding::encode(u)))
-                .unwrap_or_default(),
-            host = self.host,
-            password = self
-                .password
-                .as_ref()
-                .map(|p| format!("password={}", urlencoding::encode(p)))
-                .unwrap_or_default(),
-            port = self.port.map(|p| format!("port={}", p)).unwrap_or_default(),
-            sslmode = self
-                .sslmode
-                .as_ref()
-                .map(|s| format!("sslmode={}", s.clone()))
-                .unwrap_or_default(),
-        )
-    }
-
     pub async fn connect(
         &self,
     ) -> Result<(tokio_postgres::Client, TokioPgConnection), error::Error> {
diff --git a/backend/windmill-worker/src/duckdb_executor.rs b/backend/windmill-worker/src/duckdb_executor.rs
index 8345cbd7c2..f5a13d13ba 100644
--- a/backend/windmill-worker/src/duckdb_executor.rs
+++ b/backend/windmill-worker/src/duckdb_executor.rs
@@ -10,8 +10,6 @@ use serde_json::value::RawValue;
 use serde_json::{json, Value};
 use uuid::Uuid;
 use windmill_common::error::{to_anyhow, Error, Result};
-use windmill_types::s3::S3Object;
-use windmill_object_store::S3_PROXY_LAST_ERRORS_CACHE;
 use windmill_common::utils::sanitize_string_from_password;
 use windmill_common::worker::{Connection, SqlResultCollectionStrategy};
 use windmill_common::workspaces::{
@@ -19,8 +17,10 @@ use windmill_common::workspaces::{
     DucklakeCatalogResourceType,
 };
 use windmill_common::PgDatabase;
+use windmill_object_store::S3_PROXY_LAST_ERRORS_CACHE;
 use windmill_parser_sql::{parse_duckdb_sig, parse_sql_blocks};
 use windmill_queue::{CanceledBy, MiniPulledJob};
+use windmill_types::s3::S3Object;
 
 use crate::agent_workers::{get_datatable_resource_from_agent_http, get_ducklake_from_agent_http};
 use crate::common::{build_args_values, get_reserved_variables, OccupancyMetrics};
@@ -419,7 +419,7 @@ fn format_attach_db_conn_str(db_resource: Value, db_type: &str) -> Result<String
     let s = match db_type.to_lowercase().as_str() {
         "postgres" | "postgresql" => {
             let res: PgDatabase = serde_json::from_value(db_resource)?;
-            res.to_conn_str()
+            res.to_uri()
         }
         #[cfg(feature = "mysql")]
         "mysql" => {