add backtick

Author: jialuoo

bigframes/core/compile/sqlglot/expressions/generic_ops.py

@@ -144,7 +144,13 @@ def _(left: TypedExpr, right: TypedExpr) -> sge.Expression:
 def _(
     left: TypedExpr, right: TypedExpr, op: ops.BinaryRemoteFunctionOp
 ) -> sge.Expression:
-    return sge.func(str(op.function_def.routine_ref), left.expr, right.expr)
+    routine_ref = op.function_def.routine_ref
+    # Quote project, dataset, and routine IDs to avoid keyword clashes.
+    func_name = (
+        f"`{routine_ref.project}`.`{routine_ref.dataset_id}`.`{routine_ref.routine_id}`"
+    )
+
+    return sge.func(func_name, left.expr, right.expr)
 
 
 @register_nary_op(ops.case_when_op)

tests/unit/core/compile/sqlglot/expressions/snapshots/test_generic_ops/test_binary_remote_function_op/out.sql

@@ -6,7 +6,7 @@ WITH `bfcte_0` AS (
 ), `bfcte_1` AS (
   SELECT
     *,
-    my_project.my_dataset.my_routine(`int64_col`, `float64_col`) AS `bfcol_2`
+    `my_project`.`my_dataset`.`my_routine`(`int64_col`, `float64_col`) AS `bfcol_2`
   FROM `bfcte_0`
 )
 SELECT