Merge branch 'main' into tswast-cover

Author: tswast

CHANGELOG.md

@@ -4,6 +4,34 @@
 
 [1]: https://pypi.org/project/bigframes/#history
 
+## [2.25.0](https://github.com/googleapis/python-bigquery-dataframes/compare/v2.24.0...v2.25.0) (2025-10-13)
+
+
+### Features
+
+* Add barh, pie plot types ([#2146](https://github.com/googleapis/python-bigquery-dataframes/issues/2146)) ([5cc3c5b](https://github.com/googleapis/python-bigquery-dataframes/commit/5cc3c5b1391a7dfa062b1d77f001726b013f6337))
+* Add Index.__eq__ for consts, aligned objects ([#2141](https://github.com/googleapis/python-bigquery-dataframes/issues/2141)) ([8514200](https://github.com/googleapis/python-bigquery-dataframes/commit/85142008ec895fa078d192bbab942d0257f70df3))
+* Add output_schema parameter to ai.generate() ([#2139](https://github.com/googleapis/python-bigquery-dataframes/issues/2139)) ([ef0b0b7](https://github.com/googleapis/python-bigquery-dataframes/commit/ef0b0b73843da2a93baf08e4cd5457fbb590b89c))
+* Create session-scoped `cut`, `DataFrame`, `MultiIndex`, `Index`, `Series`, `to_datetime`, and `to_timedelta` methods ([#2157](https://github.com/googleapis/python-bigquery-dataframes/issues/2157)) ([5e1e809](https://github.com/googleapis/python-bigquery-dataframes/commit/5e1e8098ecf212c91d73fa80d722d1cb3e46668b))
+* Replace ML.GENERATE_TEXT with AI.GENERATE for audio transcription ([#2151](https://github.com/googleapis/python-bigquery-dataframes/issues/2151)) ([a410d0a](https://github.com/googleapis/python-bigquery-dataframes/commit/a410d0ae43ef3b053b650804156eda0b1f569da9))
+* Support string literal inputs for AI functions ([#2152](https://github.com/googleapis/python-bigquery-dataframes/issues/2152)) ([7600001](https://github.com/googleapis/python-bigquery-dataframes/commit/760000122dc190ac8a3303234cf4cbee1bbb9493))
+
+
+### Bug Fixes
+
+* Address typo in error message ([#2142](https://github.com/googleapis/python-bigquery-dataframes/issues/2142)) ([cdf2dd5](https://github.com/googleapis/python-bigquery-dataframes/commit/cdf2dd55a0c03da50ab92de09788cafac0abf6f6))
+* Avoid possible circular imports in global session ([#2115](https://github.com/googleapis/python-bigquery-dataframes/issues/2115)) ([095c0b8](https://github.com/googleapis/python-bigquery-dataframes/commit/095c0b85a25a2e51087880909597cc62a0341c93))
+* Fix too many cluster columns requested by caching ([#2155](https://github.com/googleapis/python-bigquery-dataframes/issues/2155)) ([35c1c33](https://github.com/googleapis/python-bigquery-dataframes/commit/35c1c33b85d1b92e402aab73677df3ffe43a51b4))
+* Show progress even in job optional queries ([#2119](https://github.com/googleapis/python-bigquery-dataframes/issues/2119)) ([1f48d3a](https://github.com/googleapis/python-bigquery-dataframes/commit/1f48d3a62e7e6dac4acb39e911daf766b8e2fe62))
+* Yield row count from read session if otherwise unknown ([#2148](https://github.com/googleapis/python-bigquery-dataframes/issues/2148)) ([8997d4d](https://github.com/googleapis/python-bigquery-dataframes/commit/8997d4d7d9965e473195f98c550c80657035b7e1))
+
+
+### Documentation
+
+* Add a brief intro notebook for bbq AI functions ([#2150](https://github.com/googleapis/python-bigquery-dataframes/issues/2150)) ([1f434fb](https://github.com/googleapis/python-bigquery-dataframes/commit/1f434fb5c7c00601654b3ab19c6ad7fceb258bd6))
+* Fix ai function related docs ([#2149](https://github.com/googleapis/python-bigquery-dataframes/issues/2149)) ([93a0749](https://github.com/googleapis/python-bigquery-dataframes/commit/93a0749392b84f27162654fe5ea5baa329a23f99))
+* Remove progress bar from getting started template ([#2143](https://github.com/googleapis/python-bigquery-dataframes/issues/2143)) ([d13abad](https://github.com/googleapis/python-bigquery-dataframes/commit/d13abadbcd68d03997e8dc11bb7a2b14bbd57fcc))
+
 ## [2.24.0](https://github.com/googleapis/python-bigquery-dataframes/compare/v2.23.0...v2.24.0) (2025-10-07)
 
 

bigframes/bigquery/_operations/ai.py

@@ -65,14 +65,21 @@ def generate(
         1    Ottawa\\n
         Name: result, dtype: string
 
-        You get structured output when the `output_schema` parameter is set:
+    You get structured output when the `output_schema` parameter is set:
 
         >>> animals = bpd.Series(["Rabbit", "Spider"])
         >>> bbq.ai.generate(animals, output_schema={"number_of_legs": "INT64", "is_herbivore": "BOOL"})
         0    {'is_herbivore': True, 'number_of_legs': 4, 'f...
         1    {'is_herbivore': False, 'number_of_legs': 8, '...
         dtype: struct<is_herbivore: bool, number_of_legs: int64, full_response: extension<dbjson<JSONArrowType>>, status: string>[pyarrow]
 
+    .. note::
+
+        This product or feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the
+        Service Specific Terms(https://cloud.google.com/terms/service-terms#1). Pre-GA products and features are available "as is"
+        and might have limited support. For more information, see the launch stage descriptions
+        (https://cloud.google.com/products#product-launch-stages).
+
     Args:
         prompt (str | Series | List[str|Series] | Tuple[str|Series, ...]):
             A mixture of Series and string literals that specifies the prompt to send to the model. The Series can be BigFrames Series
@@ -165,6 +172,13 @@ def generate_bool(
         2    False
         Name: result, dtype: boolean
 
+    .. note::
+
+        This product or feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the
+        Service Specific Terms(https://cloud.google.com/terms/service-terms#1). Pre-GA products and features are available "as is"
+        and might have limited support. For more information, see the launch stage descriptions
+        (https://cloud.google.com/products#product-launch-stages).
+
     Args:
         prompt (str | Series | List[str|Series] | Tuple[str|Series, ...]):
             A mixture of Series and string literals that specifies the prompt to send to the model. The Series can be BigFrames Series
@@ -240,6 +254,13 @@ def generate_int(
         2    8
         Name: result, dtype: Int64
 
+    .. note::
+
+        This product or feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the
+        Service Specific Terms(https://cloud.google.com/terms/service-terms#1). Pre-GA products and features are available "as is"
+        and might have limited support. For more information, see the launch stage descriptions
+        (https://cloud.google.com/products#product-launch-stages).
+
     Args:
         prompt (str | Series | List[str|Series] | Tuple[str|Series, ...]):
             A mixture of Series and string literals that specifies the prompt to send to the model. The Series can be BigFrames Series
@@ -315,6 +336,13 @@ def generate_double(
         2    8.0
         Name: result, dtype: Float64
 
+    .. note::
+
+        This product or feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the
+        Service Specific Terms(https://cloud.google.com/terms/service-terms#1). Pre-GA products and features are available "as is"
+        and might have limited support. For more information, see the launch stage descriptions
+        (https://cloud.google.com/products#product-launch-stages).
+
     Args:
         prompt (str | Series | List[str|Series] | Tuple[str|Series, ...]):
             A mixture of Series and string literals that specifies the prompt to send to the model. The Series can be BigFrames Series
@@ -371,6 +399,7 @@ def if_(
     provides optimization such that not all rows are evaluated with the LLM.
 
     **Examples:**
+
         >>> import bigframes.pandas as bpd
         >>> import bigframes.bigquery as bbq
         >>> bpd.options.display.progress_bar = None
@@ -386,6 +415,13 @@ def if_(
         1         Illinois
         dtype: string
 
+    .. note::
+
+        This product or feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the
+        Service Specific Terms(https://cloud.google.com/terms/service-terms#1). Pre-GA products and features are available "as is"
+        and might have limited support. For more information, see the launch stage descriptions
+        (https://cloud.google.com/products#product-launch-stages).
+
     Args:
         prompt (str | Series | List[str|Series] | Tuple[str|Series, ...]):
             A mixture of Series and string literals that specifies the prompt to send to the model. The Series can be BigFrames Series
@@ -433,6 +469,13 @@ def classify(
         <BLANKLINE>
         [2 rows x 2 columns]
 
+    .. note::
+
+        This product or feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the
+        Service Specific Terms(https://cloud.google.com/terms/service-terms#1). Pre-GA products and features are available "as is"
+        and might have limited support. For more information, see the launch stage descriptions
+        (https://cloud.google.com/products#product-launch-stages).
+
     Args:
         input (str | Series | List[str|Series] | Tuple[str|Series, ...]):
             A mixture of Series and string literals that specifies the input to send to the model. The Series can be BigFrames Series
@@ -482,6 +525,13 @@ def score(
         2    3.0
         dtype: Float64
 
+    .. note::
+
+        This product or feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the
+        Service Specific Terms(https://cloud.google.com/terms/service-terms#1). Pre-GA products and features are available "as is"
+        and might have limited support. For more information, see the launch stage descriptions
+        (https://cloud.google.com/products#product-launch-stages).
+
     Args:
         prompt (str | Series | List[str|Series] | Tuple[str|Series, ...]):
             A mixture of Series and string literals that specifies the prompt to send to the model. The Series can be BigFrames Series

bigframes/core/compile/sqlglot/aggregations/ordered_unary_compiler.py

@@ -14,11 +14,8 @@
 
 from __future__ import annotations
 
-import typing
-
 import sqlglot.expressions as sge
 
-from bigframes.core import window_spec
 import bigframes.core.compile.sqlglot.aggregations.op_registration as reg
 import bigframes.core.compile.sqlglot.expressions.typed_expr as typed_expr
 from bigframes.operations import aggregations as agg_ops
@@ -29,9 +26,35 @@
 def compile(
     op: agg_ops.WindowOp,
     column: typed_expr.TypedExpr,
-    window: typing.Optional[window_spec.WindowSpec] = None,
-    order_by: typing.Sequence[sge.Expression] = [],
+    *,
+    order_by: tuple[sge.Expression, ...],
+) -> sge.Expression:
+    return ORDERED_UNARY_OP_REGISTRATION[op](op, column, order_by=order_by)
+
+
+@ORDERED_UNARY_OP_REGISTRATION.register(agg_ops.ArrayAggOp)
+def _(
+    op: agg_ops.ArrayAggOp,
+    column: typed_expr.TypedExpr,
+    *,
+    order_by: tuple[sge.Expression, ...],
 ) -> sge.Expression:
-    return ORDERED_UNARY_OP_REGISTRATION[op](
-        op, column, window=window, order_by=order_by
-    )
+    expr = column.expr
+    if len(order_by) > 0:
+        expr = sge.Order(this=column.expr, expressions=list(order_by))
+    return sge.IgnoreNulls(this=sge.ArrayAgg(this=expr))
+
+
+@ORDERED_UNARY_OP_REGISTRATION.register(agg_ops.StringAggOp)
+def _(
+    op: agg_ops.StringAggOp,
+    column: typed_expr.TypedExpr,
+    *,
+    order_by: tuple[sge.Expression, ...],
+) -> sge.Expression:
+    expr = column.expr
+    if len(order_by) > 0:
+        expr = sge.Order(this=expr, expressions=list(order_by))
+
+    expr = sge.GroupConcat(this=expr, separator=sge.convert(op.sep))
+    return sge.func("COALESCE", expr, sge.convert(""))

bigframes/core/compile/sqlglot/aggregations/unary_compiler.py

@@ -98,6 +98,27 @@ def _(
     return apply_window_if_present(sge.func("COUNT", column.expr), window)
 
 
+@UNARY_OP_REGISTRATION.register(agg_ops.DateSeriesDiffOp)
+def _(
+    op: agg_ops.DateSeriesDiffOp,
+    column: typed_expr.TypedExpr,
+    window: typing.Optional[window_spec.WindowSpec] = None,
+) -> sge.Expression:
+    if column.dtype != dtypes.DATE_DTYPE:
+        raise TypeError(f"Cannot perform date series diff on type {column.dtype}")
+    shift_op_impl = UNARY_OP_REGISTRATION[agg_ops.ShiftOp(0)]
+    shifted = shift_op_impl(agg_ops.ShiftOp(op.periods), column, window)
+    # Conversion factor from days to microseconds
+    conversion_factor = 24 * 60 * 60 * 1_000_000
+    return sge.Cast(
+        this=sge.DateDiff(
+            this=column.expr, expression=shifted, unit=sge.Identifier(this="DAY")
+        )
+        * sge.convert(conversion_factor),
+        to="INT64",
+    )
+
+
 @UNARY_OP_REGISTRATION.register(agg_ops.DenseRankOp)
 def _(
     op: agg_ops.DenseRankOp,
@@ -151,6 +172,23 @@ def _(
     )
 
 
+@UNARY_OP_REGISTRATION.register(agg_ops.DiffOp)
+def _(
+    op: agg_ops.DiffOp,
+    column: typed_expr.TypedExpr,
+    window: typing.Optional[window_spec.WindowSpec] = None,
+) -> sge.Expression:
+    shift_op_impl = UNARY_OP_REGISTRATION[agg_ops.ShiftOp(0)]
+    shifted = shift_op_impl(agg_ops.ShiftOp(op.periods), column, window)
+    if column.dtype in (dtypes.BOOL_DTYPE, dtypes.INT_DTYPE, dtypes.FLOAT_DTYPE):
+        if column.dtype == dtypes.BOOL_DTYPE:
+            return sge.NEQ(this=column.expr, expression=shifted)
+        else:
+            return sge.Sub(this=column.expr, expression=shifted)
+    else:
+        raise TypeError(f"Cannot perform diff on type {column.dtype}")
+
+
 @UNARY_OP_REGISTRATION.register(agg_ops.MaxOp)
 def _(
     op: agg_ops.MaxOp,
@@ -240,6 +278,27 @@ def _(
     return apply_window_if_present(sge.func("COUNT", sge.convert(1)), window)
 
 
+@UNARY_OP_REGISTRATION.register(agg_ops.ShiftOp)
+def _(
+    op: agg_ops.ShiftOp,
+    column: typed_expr.TypedExpr,
+    window: typing.Optional[window_spec.WindowSpec] = None,
+) -> sge.Expression:
+    if op.periods == 0:  # No-op
+        return column.expr
+    if op.periods > 0:
+        return apply_window_if_present(
+            sge.func("LAG", column.expr, sge.convert(op.periods)),
+            window,
+            include_framing_clauses=False,
+        )
+    return apply_window_if_present(
+        sge.func("LEAD", column.expr, sge.convert(-op.periods)),
+        window,
+        include_framing_clauses=False,
+    )
+
+
 @UNARY_OP_REGISTRATION.register(agg_ops.SumOp)
 def _(
     op: agg_ops.SumOp,
@@ -255,3 +314,20 @@ def _(
     # Will be null if all inputs are null. Pandas defaults to zero sum though.
     zero = pd.to_timedelta(0) if column.dtype == dtypes.TIMEDELTA_DTYPE else 0
     return sge.func("IFNULL", expr, ir._literal(zero, column.dtype))
+
+
+@UNARY_OP_REGISTRATION.register(agg_ops.TimeSeriesDiffOp)
+def _(
+    op: agg_ops.TimeSeriesDiffOp,
+    column: typed_expr.TypedExpr,
+    window: typing.Optional[window_spec.WindowSpec] = None,
+) -> sge.Expression:
+    if column.dtype != dtypes.TIMESTAMP_DTYPE:
+        raise TypeError(f"Cannot perform time series diff on type {column.dtype}")
+    shift_op_impl = UNARY_OP_REGISTRATION[agg_ops.ShiftOp(0)]
+    shifted = shift_op_impl(agg_ops.ShiftOp(op.periods), column, window)
+    return sge.TimestampDiff(
+        this=column.expr,
+        expression=shifted,
+        unit=sge.Identifier(this="MICROSECOND"),
+    )

bigframes/core/indexes/base.py

@@ -383,9 +383,16 @@ def to_series(
 
         name = self.name if name is None else name
         if index is None:
-            return bigframes.series.Series(data=self, index=self, name=name)
+            return bigframes.series.Series(
+                data=self, index=self, name=name, session=self._session
+            )
         else:
-            return bigframes.series.Series(data=self, index=Index(index), name=name)
+            return bigframes.series.Series(
+                data=self,
+                index=Index(index, session=self._session),
+                name=name,
+                session=self._session,
+            )
 
     def get_level_values(self, level) -> Index:
         level_n = level if isinstance(level, int) else self.names.index(level)