existant Query Elasticsearch 5.4
GET /_search
{
"query": {
"exists": {
"field": "user"
}
}
}
Difficult Dolphin
GET /_search
{
"query": {
"exists": {
"field": "user"
}
}
}GET /_search
{
"query": {
"bool": {
"must_not": {
"exists": {
"field": "user"
}
}
}
}
}