Docs for Union Schema Type

[timheerwagen]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the feature has not already been requested

🚀 Feature Proposal

The docs seem to miss a page for Union Schema Type which was released in 8.18.

Motivation

No response

Example

No response

[TechGenie-awake]

Hi @timheerwagen ! I've opened a PR to add the Union Schema Type documentation: #15721

The documentation covers:

• Basic usage and syntax
• Casting behavior with examples
• Error handling
• Type-specific options (like trim for strings)
• Query and update operations

Please review and let me know if there's anything else that should be included!