[wip] fix undefined filters in Drizzle connections

[williamrobertson13]

Summary

• omit where from generated Drizzle connection queries when there is no filter
• cover both root drizzleConnection and nested relatedConnection query shapes
• add a patch changeset for @pothos/plugin-drizzle

Why

Drizzle 1.0.0-rc.5-169397b rejects an explicitly undefined relational filter with:

Unexpected 'undefined' in filter value. Use 'EmptyFilter' if you want the filter field to be skipped.

Connection queries without a user filter or cursor currently include where: undefined. Omitting the optional property preserves existing behavior on earlier Drizzle versions and satisfies the stricter rc.5 contract.

Validation

• regression assertions fail on both affected query paths before the fix
• drizzle-orm@1.0.0-rc.2: 90/90 plugin tests pass
• drizzle-orm@1.0.0-rc.4: 90/90 plugin tests pass
• drizzle-orm@1.0.0-rc.5-169397b: 90/90 plugin tests pass
• pnpm --filter @pothos/plugin-drizzle type
• pnpm --filter @pothos/plugin-drizzle build

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[changeset-bot]

🦋 Changeset detected

Latest commit: 2f801f3

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@pothos/plugin-drizzle	Patch

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commit: 2f801f3

[Copilot]

Pull request overview

This PR updates @pothos/plugin-drizzle connection query generation to avoid emitting where: undefined in Drizzle relational queries, improving compatibility with stricter Drizzle 1.0.0-rc.5 filtering behavior. It also adds regression tests for both root and nested connection shapes and includes a patch changeset for release.

Changes:

• Omit where from generated connection query objects when no filter clauses exist.
• Ensure combined where logic for connection + user-provided query is only included when defined.
• Add regression tests (root drizzleConnection and nested relatedConnection) plus a patch changeset.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
packages/plugin-drizzle/src/utils/cursors.ts	Avoids generating where: undefined by conditionally adding where only when a filter exists.
packages/plugin-drizzle/tests/drizzle-connections.test.ts	Adds a regression assertion (via spy) that root connection queries omit where when undefined.
packages/plugin-drizzle/tests/related-connection.test.ts	Adds a regression assertion (via spy) that nested related connection queries omit where when undefined.
.changeset/quiet-ravens-filter.md	Adds a patch changeset describing the compatibility fix for strict Drizzle relational filters.

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[williamrobertson13]

closing this until RC 5 gets released for real