Find empty strings in elasticsearch

Question

I\'m trying to _search documents that has some specific value in the field.

{
  \"query\": {
      \"bool\": {
        \"must\": [
         {\"f         


        

Answer 1

You can try this temporary solution which works but isn't optimal - https://github.com/elastic/elasticsearch/issues/7515

PUT t/t/1
{
"textContent": ""
}

PUT t/t/2
{
 "textContent": "foo"
}

GET t/t/_search
{
 "query": {
  "bool": {
   "must": [
    {
      "exists": {
        "field": "textContent"
      }
    }
  ],
  "must_not": [
    {
      "wildcard": {
        "textContent": "*"
      }
     }
   ]
  }
 }
}