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feat: add deprecation warnings for .blob accessor and read_gbq_object_table #2408

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shuoweil merged 3 commits into from
Jan 27, 2026
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feat: add deprecation warnings for .blob accessor and read_gbq_object_table #2408

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dd4d686
feat: add deprecation warnings for .blob accessor and read_gbq_object…
shuoweil Jan 26, 2026
dc29159
docs: update instructions
shuoweil Jan 27, 2026
6a1c32e
Merge branch 'main' into shuowei-deprecate-warning-blob
shuoweil Jan 27, 2026
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8 changes: 8 additions & 0 deletions bigframes/series.py
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Original file line number Diff line number Diff line change
Expand Up @@ -317,6 +317,14 @@ def list(self) -> lists.ListAccessor:

@property
def blob(self) -> blob.BlobAccessor:
"""
Accessor for Blob operations.
"""
warnings.warn(
"The blob accessor is deprecated and will be removed in a future release.",
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@GarrettWu GarrettWu Jan 27, 2026

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Use bigframes.bigquery.obj functions instead.

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@shuoweil shuoweil Jan 27, 2026

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Done. Updated the warning message to point to bigframes.bigquery.obj functions.

category=bfe.ApiDeprecationWarning,
stacklevel=2,
)
return blob.BlobAccessor(self)

@property
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5 changes: 5 additions & 0 deletions bigframes/session/__init__.py
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Expand Up @@ -2291,6 +2291,11 @@ def read_gbq_object_table(
bigframes.pandas.DataFrame:
Result BigFrames DataFrame.
"""
warnings.warn(
"read_gbq_object_table is deprecated and will be removed in a future release.",
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@GarrettWu GarrettWu Jan 27, 2026

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use read_gbq with "ref" column instead.

b/478950476

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@shuoweil shuoweil Jan 27, 2026

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Done. Updated the warning message to suggest using read_gbq with the 'ref' column.

category=bfe.ApiDeprecationWarning,
stacklevel=2,
)
# TODO(garrettwu): switch to pseudocolumn when b/374988109 is done.
table = self.bqclient.get_table(object_table)
connection = table._properties["externalDataConfiguration"]["connectionId"]
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