Feat: add trino support (#10512)

### What problem does this PR solve?
issue:
[#10296](https://github.com/infiniflow/ragflow/issues/10296)
change:
- ExeSQL: support connecting to Trino.
- Validation: password can be empty only when db_type === "trino";
  all other database types keep the existing requirement (non-empty).

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

agent/tools/exesql.py

@@ -53,12 +53,13 @@ class ExeSQLParam(ToolParamBase):
         self.max_records = 1024
 
     def check(self):
-        self.check_valid_value(self.db_type, "Choose DB type", ['mysql', 'postgres', 'mariadb', 'mssql', 'IBM DB2'])
+        self.check_valid_value(self.db_type, "Choose DB type", ['mysql', 'postgres', 'mariadb', 'mssql', 'IBM DB2', 'trino'])
         self.check_empty(self.database, "Database name")
         self.check_empty(self.username, "database username")
         self.check_empty(self.host, "IP Address")
         self.check_positive_integer(self.port, "IP Port")
-        self.check_empty(self.password, "Database password")
+        if self.db_type != "trino":
+            self.check_empty(self.password, "Database password")
         self.check_positive_integer(self.max_records, "Maximum number of records")
         if self.database == "rag_flow":
             if self.host == "ragflow-mysql":
@@ -123,6 +124,45 @@ class ExeSQL(ToolBase, ABC):
                     r'PWD=' + self._param.password
             )
             db = pyodbc.connect(conn_str)
+        elif self._param.db_type == 'trino':
+            try:
+                import trino
+                from trino.auth import BasicAuthentication
+            except Exception:
+                raise Exception("Missing dependency 'trino'. Please install: pip install trino")
+
+            def _parse_catalog_schema(db: str):
+                if not db:
+                    return None, None
+                if "." in db:
+                    c, s = db.split(".", 1)
+                elif "/" in db:
+                    c, s = db.split("/", 1)
+                else:
+                    c, s = db, "default"
+                return c, s
+
+            catalog, schema = _parse_catalog_schema(self._param.database)
+            if not catalog:
+                raise Exception("For Trino, `database` must be 'catalog.schema' or at least 'catalog'.")
+
+            http_scheme = "https" if os.environ.get("TRINO_USE_TLS", "0") == "1" else "http"
+            auth = None
+            if http_scheme == "https" and self._param.password:
+                auth = BasicAuthentication(self._param.username, self._param.password)
+
+            try:
+                db = trino.dbapi.connect(
+                    host=self._param.host,
+                    port=int(self._param.port or 8080),
+                    user=self._param.username or "ragflow",
+                    catalog=catalog,
+                    schema=schema or "default",
+                    http_scheme=http_scheme,
+                    auth=auth
+                )
+            except Exception as e:
+                raise Exception("Database Connection Failed! \n" + str(e))
         elif self._param.db_type == 'IBM DB2':
             import ibm_db
             conn_str = (

api/apps/canvas_app.py

@@ -409,6 +409,49 @@ def test_db_connect():
             ibm_db.fetch_assoc(stmt)
             ibm_db.close(conn)
             return get_json_result(data="Database Connection Successful!")
+        elif req["db_type"] == 'trino':
+            def _parse_catalog_schema(db: str):
+                if not db:
+                    return None, None
+                if "." in db:
+                    c, s = db.split(".", 1)
+                elif "/" in db:
+                    c, s = db.split("/", 1)
+                else:
+                    c, s = db, "default"
+                return c, s
+            try:
+                import trino
+                import os
+                from trino.auth import BasicAuthentication
+            except Exception:
+                return server_error_response("Missing dependency 'trino'. Please install: pip install trino")
+
+            catalog, schema = _parse_catalog_schema(req["database"])
+            if not catalog:
+                return server_error_response("For Trino, 'database' must be 'catalog.schema' or at least 'catalog'.")
+            
+            http_scheme = "https" if os.environ.get("TRINO_USE_TLS", "0") == "1" else "http"
+
+            auth = None
+            if http_scheme == "https" and req.get("password"):
+                auth = BasicAuthentication(req.get("username") or "ragflow", req["password"])
+
+            conn = trino.dbapi.connect(
+                host=req["host"],
+                port=int(req["port"] or 8080),
+                user=req["username"] or "ragflow",
+                catalog=catalog,
+                schema=schema or "default",
+                http_scheme=http_scheme,
+                auth=auth
+            )
+            cur = conn.cursor()
+            cur.execute("SELECT 1")
+            cur.fetchall()
+            cur.close()
+            conn.close()
+            return get_json_result(data="Database Connection Successful!")
         else:
             return server_error_response("Unsupported database type.")
         if req["db_type"] != 'mssql':

web/src/pages/agent/form/exesql-form/use-submit-form.ts

@@ -8,14 +8,27 @@ export const ExeSQLFormSchema = {
   username: z.string().min(1),
   host: z.string().min(1),
   port: z.number(),
-  password: z.string().min(1),
+  password: z.string().optional().or(z.literal('')),
   max_records: z.number(),
 };
 
-export const FormSchema = z.object({
-  sql: z.string().optional(),
-  ...ExeSQLFormSchema,
-});
+export const FormSchema = z
+  .object({
+    sql: z.string().optional(),
+    ...ExeSQLFormSchema,
+  })
+  .superRefine((v, ctx) => {
+    if (
+      v.db_type !== 'trino' &&
+      !(v.password && v.password.trim().length > 0)
+    ) {
+      ctx.addIssue({
+        code: z.ZodIssueCode.custom,
+        path: ['password'],
+        message: 'String must contain at least 1 character(s)',
+      });
+    }
+  });
 
 export function useSubmitForm() {
   const { testDbConnect, loading } = useTestDbConnect();

web/src/pages/agent/options.ts

@@ -2139,6 +2139,7 @@ export const ExeSQLOptions = [
   'mariadb',
   'mssql',
   'IBM DB2',
+  'trino',
 ].map((x) => ({
   label: upperFirst(x),
   value: x,