feat: Add BigFrames.bigquery.st_regionstats method by tswast · Pull Request #2200 · googleapis/python-bigquery-dataframes

tswast · Oct 27, 2025

This commit adds the BigFrames.bigquery.st_regionstats method, which allows users to compute statistics for a raster band within a given geography.

The implementation includes:

A new StRegionStatsOp in bigframes/operations/geo_ops.py.
Compiler implementations for both the SQLGlot and Ibis backends.
A unit test with a SQL snapshot.
A code sample in samples/snippets/wildfire_risk.py that demonstrates the use of the new function.

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Fixes #<issue_number_goes_here> 🦕

This commit adds the `BigFrames.bigquery.st_regionstats` method, which allows users to compute statistics for a raster band within a given geography. The implementation includes: - A new `StRegionStatsOp` in `bigframes/operations/geo_ops.py`. - Compiler implementations for both the SQLGlot and Ibis backends. - A unit test with a SQL snapshot. - A code sample in `samples/snippets/wildfire_risk.py` that demonstrates the use of the new function.

tswast · Oct 27, 2025

+    raster: bigframes.series.Series,
+    band: str,
+    *,
+    options: Mapping[str, Union[str, int, float]] = {},


Missing "include".

Also, "options" might not work if it is keyword-only.

Also, don't use mutable values as the default.

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tswast · Oct 27, 2025

+    if op.options:
+        args.append(bigframes_vendored.ibis.literal(op.options, type="json"))
+    return bigframes_vendored.ibis.remote_function(
+        "st_regionstats", args, output_type="struct<min: float, max: float, sum: float, count: int, mean: float>"  # type: ignore


Per https://cloud.google.com/bigquery/docs/reference/standard-sql/geography_functions#st_regionstats it should also include area.

tswast · Oct 27, 2025

+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import bigframes.bigquery as bbq


Should put this inside a test file so we actually run it.

tswast · Oct 27, 2025

Inspired by the SQL at https://cloud.google.com/blog/products/data-analytics/a-closer-look-at-earth-engine-in-bigquery

tswast · Oct 27, 2025

+pytest.importorskip("pytest_snapshot")
+
+
+class TestGeoCompiler:


Should use pytest style not unittest style.

This commit adds the `BigFrames.bigquery.st_regionstats` method, which allows users to compute statistics for a raster band within a given geography. The implementation includes: - A new `StRegionStatsOp` in `bigframes/operations/geo_ops.py`. - Compiler implementations for both the SQLGlot and Ibis backends. - A unit test with a SQL snapshot. - A system test that demonstrates the use of the new function. This commit also addresses feedback from the code review, including: - Adding `area` to the output struct of `st_regionstats`. - Making the `options` parameter a positional argument. - Adding comments to explain the use of `pass_op`. - Converting the unit test to a pytest-style function. - Moving the sample code to a system test.

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

…ython-bigquery-dataframes into feat-st-regionstats

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

…ython-bigquery-dataframes into feat-st-regionstats

This commit introduces the `st_regionstats` method in `bigframes.bigquery`, allowing users to compute statistics for a raster band within a given geography. Key changes: - Added `StRegionStatsOp` in `bigframes/operations/geo_ops.py`. - Implemented compilation logic for the operation in both Ibis and SQLGlot compilers. - Exposed the `st_regionstats` function in `bigframes/bigquery/_operations/geo.py` and the public API. - Added a new `_apply_ternary_op` method to `bigframes.series.Series`. - Included a unit test with a snapshot to verify the generated SQL. - Added a system test that demonstrates the functionality by converting a complex wildfire risk analysis query from SQL to BigFrames. - Refactored compiler registries to support `pass_op=True` for ternary operations, enabling access to operator parameters during compilation.

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…ython-bigquery-dataframes into feat-st-regionstats

tswast · Oct 28, 2025

Bad merge. Revert these changes.

tswast · Oct 28, 2025

Needs to be reverted too.

This commit introduces the `st_regionstats` method in `bigframes.bigquery`, allowing users to compute statistics for a raster band within a given geography. Key changes: - Added `StRegionStatsOp` in `bigframes/operations/geo_ops.py`. - Implemented compilation logic for the operation in both Ibis and SQLGlot compilers. - Exposed the `st_regionstats` function in `bigframes/bigquery/_operations/geo.py` and the public API. - Added a new `_apply_ternary_op` method to `bigframes.series.Series`. - Included a unit test with a snapshot to verify the generated SQL. - Added a system test that demonstrates the functionality by converting a complex wildfire risk analysis query from SQL to BigFrames. - Refactored compiler registries to support `pass_op=True` for ternary operations, enabling access to operator parameters during compilation.

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

snippet-bot · Oct 29, 2025

Here is the summary of changes.

You are about to add 1 region tag.

samples/snippets/st_regionstats_test.py:19, tag bigquery_dataframes_st_regionstats

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tswast · Oct 30, 2025

+    # TODO: Add st_simplify when it is available in BigFrames.
+    # https://github.com/googleapis/python-bigquery-dataframes/issues/1497
+    # countries["simplified_geometry"] = bq.st_simplify(countries["geometry"], 10000)


I'd like to add st_simplify first so that this sample can work without any todos for us.

tswast · Oct 30, 2025

+    # [START bigquery_dataframes_st_regionstats]
+    from typing import cast
+
+    import bigframes.bigquery as bq


Let's use bbq instead of bq.

tswast · Nov 4, 2025

Closing in favor of #2228

tswast requested a review from a team as a code owner October 27, 2025 21:13

tswast requested review from a team, glasnt and jialuoo October 27, 2025 21:13

product-auto-label Bot added the size: l Pull request size is large. label Oct 27, 2025

blunderbuss-gcf Bot assigned jialuoo Oct 27, 2025

product-auto-label Bot added the api: bigquery Issues related to the googleapis/python-bigquery-dataframes API. label Oct 27, 2025

tswast commented Oct 27, 2025

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Comment thread bigframes/core/compile/ibis_compiler/scalar_op_compiler.py

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tswast commented Oct 27, 2025

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google-labs-jules Bot and others added 7 commits October 27, 2025 21:54

Merge branch 'main' into feat-st-regionstats

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…ython-bigquery-dataframes into feat-st-regionstats

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…ython-bigquery-dataframes into feat-st-regionstats

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tswast and others added 4 commits October 28, 2025 09:50

Merge branch 'main' into feat-st-regionstats

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Merge branch 'feat-st-regionstats' of https://github.com/googleapis/p…

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…ython-bigquery-dataframes into feat-st-regionstats

tswast commented Oct 28, 2025

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Comment thread bigframes/bigquery/_operations/ai.py

tswast Oct 28, 2025

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Bad merge. Revert these changes.

tswast commented Oct 28, 2025

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Comment thread bigframes/display/anywidget.py

tswast Oct 28, 2025

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Needs to be reverted too.

product-auto-label Bot added size: l Pull request size is large. and removed size: xl Pull request size is extra large. labels Oct 28, 2025

gcf-owl-bot Bot and others added 9 commits October 28, 2025 15:32

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Merge remote-tracking branch 'origin/main' into feat-st-regionstats

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add arguments to st_regionstats and make it into a unary op

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move to geo_ops

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fix the sqlgot compiler

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fix sqlgot compiler

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attempt at ibis compiler

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use JSON literals for options parameter

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fix sample

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tswast and others added 3 commits October 29, 2025 20:56

Merge remote-tracking branch 'origin/main' into feat-st-regionstats

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Merge branch 'main' into feat-st-regionstats

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tswast commented Oct 30, 2025

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tswast mentioned this pull request Oct 30, 2025

feat: add bigframes.bigquery.st_simplify #2210

Merged

tswast closed this Nov 4, 2025

		pytest.importorskip("pytest_snapshot")


		class TestGeoCompiler:

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