[DOC] data prepper: access nested object by using ‘/’ delimiter rather than ‘.’

[AntonEliatra]

What do you want to do?

document access nested object by using ‘/’ delimiter rather than ‘.’

• Request a change to existing documentation
• Add new documentation
• Report a technical problem with the documentation
• Other

Tell us about your request. Provide a summary of the request.

There are a lot of users struggling with accessing nested objests using data prepper pipelines.
The solution is to access nested object by using ‘/’ delimiter rather than ‘.’
But this is not documented.

Version: List the OpenSearch version to which this issue applies, e.g. 2.14, 2.12--2.14, or all.

What other resources are available? Provide links to related issues, POCs, steps for testing, etc.