[iennae]

…umns in an existing search index

Problem:
The BigQuery documentation (https://cloud.google.com/bigquery/docs/search-index) needs a standalone, tested Python code sample demonstrating how to update columns in an existing search index (region tag bigquery_update_search_index).

Solution:

• Add update_search_index(project_id: str, dataset_id: str, table_id: str) -> None in bigquery/search/bigquery_update_search_index.py (Modify an existing BigQuery search index using ALTER SEARCH INDEX ... ADD COLUMNS / DROP COLUMNS.)
• Add unit tests (bigquery/search/bigquery_update_search_index_test.py) covering both the success path and API error handling (GoogleAPICallError)

Description

Fixes #

Checklist

Testing

• I have tested this change on a live environment and verified it works as intended.

Compliance & Style

• I have followed the Sample Guidelines.
• The README is updated with all relevant information (if applicable).
• If this PR adds a new sample directory: I updated the CODEOWNERS file.

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Post-Approval Actions

• Please merge this PR for me once it is approved

[snippet-bot]

Here is the summary of changes.

You are about to add 1 region tag.

• bigquery/search/bigquery_update_search_index.py:15, tag bigquery_update_search_index

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[gemini-code-assist]

Code Review

This pull request introduces a new Python script and unit tests to update a BigQuery search index by dropping a column using the ALTER SEARCH INDEX statement. It also includes the necessary configuration and requirements files. The review feedback suggests correcting the ignored Python versions in noxfile_config.py to ensure that only the oldest and newest supported Python releases are tested, aligning with the testing guidelines.

[gemini-code-assist]

According to the testing guidelines, we should only test the oldest and newest supported Python releases in test configurations, ignoring intermediate versions. Since Python 3.10 is the oldest supported version (as indicated by requirements-test.txt), it should not be ignored. Intermediate versions like 3.11 and 3.12 should be ignored instead.

Suggested change

	"ignored_versions": ["2.7", "3.7", "3.8", "3.9", "3.10", "3.11"],
	"ignored_versions": ["2.7", "3.7", "3.8", "3.9", "3.11", "3.12"],

References

1. Only test the oldest and newest supported Python releases in test configurations (such as noxfile_config.py), ignoring intermediate versions.

[XrossFox]

LGTM