jq: how to filter nested keys?

Question

I have done a lot of research on stackoverflow but cannot find any related post.

assume I have a json like

{
    "talk": {
        "docs": {
            "count": 22038185,
            "deleted": 626193
        },
        "store": {
            "size_in_bytes": 6885993125,
            "throttle_time_in_millis": 1836569
        }
    },
    "list": {
        "docs": {
            "count": 22038185,
            "deleted": 626193
        },
        "store": {
            "size_in_bytes": 6885993125,
            "throttle_time_in_millis": 1836569
        }
    }
}

I want to filter out "store" field in all keys to get an output like

{
    "talk": {
        "docs": {
            "count": 22038185,
            "deleted": 626193
        }
    },
    "list": {
        "docs": {
            "count": 22038185,
            "deleted": 626193
        }
    }
} 

How can I achieve it with jq?

Answer 1

Use del and recurse together.

jq 'del(recurse|.store?)' foo.json

You can also the short .. for recurse with no arguments:

jq 'del(..|.store?)' foo.json

The ? prevents errors when recurse reaches something for which .store is an invalid filter.