docs: deprecate bpd.options.bigquery.allow_large_results in favor of bpd.options.compute.allow_large_results

bigframes/_config/__init__.py

@@ -150,6 +150,24 @@ def is_bigquery_thread_local(self) -> bool:
         """
         return self._local.bigquery_options is not None
 
+    @property
+    def _allow_large_results(self) -> bool:
+        """The effective 'allow_large_results' setting.
+
+        This value is `self.compute.allow_large_results` if set (not `None`),
+        otherwise it defaults to `self.bigquery.allow_large_results`.
+
+        Returns:
+            bool:
+                Whether large query results are permitted.
+                - `True`: The BigQuery result size limit (e.g., 10 GB) is removed.
+                - `False`: Results are restricted to this limit (potentially faster).
+                BigQuery will raise an error if this limit is exceeded.
+        """
+        if self.compute.allow_large_results is None:
+            return self.bigquery.allow_large_results
+        return self.compute.allow_large_results
+
 
 options = Options()
 """Global options for default session."""

bigframes/_config/bigquery_options.py

@@ -19,10 +19,8 @@
 from typing import Literal, Optional
 import warnings
 
-import google.api_core.exceptions
 import google.auth.credentials
 
-import bigframes.constants
 import bigframes.enums
 import bigframes.exceptions as bfe
 
@@ -239,21 +237,34 @@ def skip_bq_connection_check(self, value: bool):
     @property
     def allow_large_results(self) -> bool:
         """
-        Sets the flag to allow or disallow query results larger than 10 GB.
+        DEPRECATED: Checks the legacy global setting for allowing large results.
+        Use ``bpd.options.compute.allow_large_results`` instead.
 
-        The default setting for this flag is True, which allows queries to return results
-        exceeding 10 GB by creating an explicit destination table. If set to False, it
-        restricts the result size to 10 GB, and BigQuery will raise an error if this limit
-        is exceeded.
+        Warning: Accessing ``bpd.options.bigquery.allow_large_results`` is deprecated
+        and this property will be removed in a future version. The configuration for
+        handling large results has moved.
 
         Returns:
-            bool: True if large results are allowed with an explicit destination table,
-            False if results are limited to 10 GB and errors are raised when exceeded.
+            bool: The value of the deprecated setting.
         """
         return self._allow_large_results
 
     @allow_large_results.setter
     def allow_large_results(self, value: bool):
+        warnings.warn(
+            "Setting `bpd.options.bigquery.allow_large_results` is deprecated, "
+            "and will be removed in the future. "
+            "Please use `bpd.options.compute.allow_large_results = <value>` instead. "
+            "The `bpd.options.bigquery.allow_large_results` option is ignored if "
+            "`bpd.options.compute.allow_large_results` is set.",
+            FutureWarning,
+            stacklevel=2,
+        )
+        if self._session_started and self._allow_large_results != value:
+            raise ValueError(
+                SESSION_STARTED_MESSAGE.format(attribute="allow_large_results")
+            )
+
         self._allow_large_results = value
 
     @property

bigframes/_config/compute_options.py

@@ -86,6 +86,12 @@ class ComputeOptions:
         ai_ops_threshold_autofail (bool):
             Guards against unexpected processing of large amount of rows by semantic operators.
             When set to True, the operation automatically fails without asking for user inputs.
+
+        allow_large_results (bool):
+            Specifies whether query results can exceed 10 GB. Defaults to False. Setting this
+            to False (the default) restricts results to 10 GB for potentially faster execution;
+            BigQuery will raise an error if this limit is exceeded. Setting to True removes
+            this result size limit.
     """
 
     maximum_bytes_billed: Optional[int] = None
@@ -97,7 +103,9 @@ class ComputeOptions:
     semantic_ops_threshold_autofail = False
 
     ai_ops_confirmation_threshold: Optional[int] = 0
-    ai_ops_threshold_autofail = False
+    ai_ops_threshold_autofail: bool = False
+
+    allow_large_results: Optional[bool] = None
 
     def assign_extra_query_labels(self, **kwargs: Any) -> None:
         """

bigframes/session/bq_caching_executor.py

@@ -61,7 +61,7 @@ def with_require_table(self, value: bool) -> OutputSpec:
 
 def _get_default_output_spec() -> OutputSpec:
     return OutputSpec(
-        require_bq_table=bigframes.options.bigquery.allow_large_results, cluster_cols=()
+        require_bq_table=bigframes.options._allow_large_results, cluster_cols=()
     )
 
 
@@ -157,9 +157,6 @@ def execute(
         ordered: bool = True,
         use_explicit_destination: Optional[bool] = None,
     ) -> executor.ExecuteResult:
-        if use_explicit_destination is None:
-            use_explicit_destination = bigframes.options.bigquery.allow_large_results
-
         if bigframes.options.compute.enable_multi_query_execution:
             self._simplify_with_caching(array_value)
 
@@ -553,6 +550,14 @@ def _execute_plan(
         else:
             size_bytes = None
 
+        if size_bytes is not None and size_bytes >= MAX_SMALL_RESULT_BYTES:
+            msg = bfe.format_message(
+                "The query result size has exceeded 10 GB. In BigFrames 2.0 and "
+                "later, you might need to manually set `allow_large_results=True` in "
+                "the IO method or adjust the BigFrames option: "
+                "`bigframes.options.compute.allow_large_results=True`."
+            )
+            warnings.warn(msg, FutureWarning)
         # Runs strict validations to ensure internal type predictions and ibis are completely in sync
         # Do not execute these validations outside of testing suite.
         if "PYTEST_CURRENT_TEST" in os.environ:

tests/system/conftest.py

@@ -142,7 +142,7 @@ def resourcemanager_client(
 
 @pytest.fixture(scope="session")
 def session() -> Generator[bigframes.Session, None, None]:
-    context = bigframes.BigQueryOptions(location="US", allow_large_results=False)
+    context = bigframes.BigQueryOptions(location="US")
     session = bigframes.Session(context=context)
     yield session
     session.close()  # close generated session at cleanup time
@@ -158,19 +158,15 @@ def session_load() -> Generator[bigframes.Session, None, None]:
 
 @pytest.fixture(scope="session", params=["strict", "partial"])
 def maybe_ordered_session(request) -> Generator[bigframes.Session, None, None]:
-    context = bigframes.BigQueryOptions(
-        location="US", ordering_mode=request.param, allow_large_results=False
-    )
+    context = bigframes.BigQueryOptions(location="US", ordering_mode=request.param)
     session = bigframes.Session(context=context)
     yield session
     session.close()  # close generated session at cleanup type
 
 
 @pytest.fixture(scope="session")
 def unordered_session() -> Generator[bigframes.Session, None, None]:
-    context = bigframes.BigQueryOptions(
-        location="US", ordering_mode="partial", allow_large_results=False
-    )
+    context = bigframes.BigQueryOptions(location="US", ordering_mode="partial")
     session = bigframes.Session(context=context)
     yield session
     session.close()  # close generated session at cleanup type
@@ -1419,7 +1415,7 @@ def floats_product_bf(session, floats_product_pd):
 
 @pytest.fixture(scope="session", autouse=True)
 def use_fast_query_path():
-    with bpd.option_context("bigquery.allow_large_results", False):
+    with bpd.option_context("compute.allow_large_results", False):
         yield
 
 

tests/system/large/test_dataframe_io.py

@@ -18,7 +18,7 @@
 import bigframes
 
 WIKIPEDIA_TABLE = "bigquery-public-data.samples.wikipedia"
-LARGE_TABLE_OPTION = "bigquery.allow_large_results"
+LARGE_TABLE_OPTION = "compute.allow_large_results"
 
 
 def test_to_pandas_batches_raise_when_large_result_not_allowed(session):

tests/system/small/test_dataframe.py

@@ -5081,7 +5081,7 @@ def test_df_bool_interpretation_error(scalars_df_index):
 
 def test_query_job_setters(scalars_df_default_index: dataframe.DataFrame):
     # if allow_large_results=False, might not create query job
-    with bigframes.option_context("bigquery.allow_large_results", True):
+    with bigframes.option_context("compute.allow_large_results", True):
         job_ids = set()
         repr(scalars_df_default_index)
         assert scalars_df_default_index.query_job is not None

tests/system/small/test_dataframe_io.py

@@ -254,7 +254,7 @@ def test_to_pandas_array_struct_correct_result(session):
 def test_to_pandas_override_global_option(scalars_df_index):
     # Direct call to_pandas uses global default setting (allow_large_results=True),
     # table has 'bqdf' prefix.
-    with bigframes.option_context("bigquery.allow_large_results", True):
+    with bigframes.option_context("compute.allow_large_results", True):
 
         scalars_df_index.to_pandas()
         table_id = scalars_df_index._query_job.destination.table_id
@@ -324,7 +324,7 @@ def test_to_pandas_dry_run(session, scalars_pandas_df_multi_index):
 
 def test_to_arrow_override_global_option(scalars_df_index):
     # Direct call to_arrow uses global default setting (allow_large_results=True),
-    with bigframes.option_context("bigquery.allow_large_results", True):
+    with bigframes.option_context("compute.allow_large_results", True):
 
         scalars_df_index.to_arrow()
         table_id = scalars_df_index._query_job.destination.table_id

tests/system/small/test_index_io.py

@@ -15,7 +15,7 @@
 
 
 def test_to_pandas_override_global_option(scalars_df_index):
-    with bigframes.option_context("bigquery.allow_large_results", True):
+    with bigframes.option_context("compute.allow_large_results", True):
 
         bf_index = scalars_df_index.index
 
@@ -39,7 +39,7 @@ def test_to_pandas_dry_run(scalars_df_index):
 
 
 def test_to_numpy_override_global_option(scalars_df_index):
-    with bigframes.option_context("bigquery.allow_large_results", True):
+    with bigframes.option_context("compute.allow_large_results", True):
 
         bf_index = scalars_df_index.index
 

tests/system/small/test_progress_bar.py

@@ -64,7 +64,7 @@ def test_progress_bar_scalar_allow_large_results(
     capsys.readouterr()  # clear output
 
     with bf.option_context(
-        "display.progress_bar", "terminal", "bigquery.allow_large_results", "True"
+        "display.progress_bar", "terminal", "compute.allow_large_results", "True"
     ):
         penguins_df_default_index["body_mass_g"].head(10).mean()
 

tests/system/small/test_series.py

@@ -3960,7 +3960,7 @@ def test_series_bool_interpretation_error(scalars_df_index):
 
 def test_query_job_setters(scalars_dfs):
     # if allow_large_results=False, might not create query job
-    with bigframes.option_context("bigquery.allow_large_results", True):
+    with bigframes.option_context("compute.allow_large_results", True):
         job_ids = set()
         df, _ = scalars_dfs
         series = df["int64_col"]

tests/system/small/test_series_io.py

@@ -19,7 +19,7 @@
 
 
 def test_to_pandas_override_global_option(scalars_df_index):
-    with bigframes.option_context("bigquery.allow_large_results", True):
+    with bigframes.option_context("compute.allow_large_results", True):
 
         bf_series = scalars_df_index["int64_col"]
 

tests/unit/_config/test_compute_options.py

@@ -0,0 +1,22 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import bigframes._config as config
+
+
+def test_default_options():
+    options = config.compute_options.ComputeOptions()
+
+    assert options.allow_large_results is None
+    assert config.options._allow_large_results is False