fix(go/adbc/driver/bigquery): fix parsing repeated records with nested fields

[felipecrv]

No description provided.

[Copilot]

Pull Request Overview

This PR fixes a bug in parsing repeated records with nested fields in the BigQuery ADBC driver. The fix removes special case handling for repeated records and instead applies a unified approach where any repeated field becomes a list type.

• Removes complex conditional logic for handling repeated record fields with single vs multiple nested fields
• Simplifies the code by applying list wrapping to all repeated fields uniformly after type construction
• Adds comprehensive test coverage for various combinations of repeated and non-repeated record fields

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
go/adbc/driver/bigquery/connection.go	Refactors buildField function to fix repeated record parsing by removing special case logic and applying unified list wrapping
go/adbc/driver/bigquery/connection_test.go	Adds new test file with comprehensive test cases for buildField function covering various field type scenarios

Comments suppressed due to low confidence (1)

go/adbc/driver/bigquery/connection.go:810

• [nitpick] The variable name 'nestedFieldSchema' is inconsistent with the original code style. Consider using 'nestedSchema' to maintain consistency with the existing codebase pattern.

		for i, nestedFieldSchema := range schema.Schema {

[lidavidm]

Thanks!