Handling Schema Changes

[Sahil Chimnani]

How to handle if document structure after production changes.

Suppose I had 500 documents like this:

{

name : 'n1'

height : 'h1'

}

Later if I decide to add all the documents in below format:

{

name : 'n501'

height : 'h501'

weight : 'w501'

}

I am using cursor.All(&userDetails) to decode(deserialize) in GoLang to get the output of the query in struct userDetails. If I modify the structure of further documents and userDetails accordingly, it will fail for the first 500 documents?

How to handle this change?

[Divjot Arora]

Answered in https://community.mongodb.com/t/managing-schema-changes-with-mongodb/1137. For future reference, we are hoping to move all Google Group communication to the community forums, so it's sufficient to just ask the question there rather than both places.