Empty string in Elasticsearch date field?

Question

I have a date field setup in my mapping like this:

\"groupsAssignedDate\" : {
    \"type\" : \"date\",
    \"format\" : \"MM-dd-YYYY\"
}

In my

Answer 1

Sounds like you may have answered this yourself. Just using null rather than "" in the date field should work.

If that's an issue, maybe consider this from
https://www.elastic.co/guide/en/elasticsearch/reference/current/ignore-malformed.html#ignore-malformed-setting

The index.mapping.ignore_malformed global setting can be set on the index level to allow to ignore malformed content globally across all mapping types (malformed content example is trying to index a string value as a numeric type).

EDIT Edited the URL above to jump to the new information.

EDIT Edited the URL above again to jump to the new information.