reset compiler to stable

Author: TrevorBergeron

bigframes/_config/experiment_options.py

@@ -27,7 +27,7 @@ class ExperimentOptions:
     def __init__(self):
         self._semantic_operators: bool = False
         self._ai_operators: bool = False
-        self._sql_compiler: Literal["legacy", "stable", "experimental"] = "experimental"
+        self._sql_compiler: Literal["legacy", "stable", "experimental"] = "stable"
 
     @property
     def semantic_operators(self) -> bool:

tests/unit/_config/test_experiment_options.py

@@ -51,7 +51,7 @@ def test_ai_operators_set_true_shows_warning():
 def test_sql_compiler_default_stable():
     options = experiment_options.ExperimentOptions()
 
-    assert options.sql_compiler == "experimental"
+    assert options.sql_compiler == "stable"
 
 
 def test_sql_compiler_set_experimental_shows_warning():