How can i full dump TermsStats Facet ap result

Elastic Stack Elasticsearch
1

i want to full dump follow query results -

http://.../_search
{
"size": "0",
"query": {
"match_all": {}
},
"facets": {
"tag_price_stats": {
"terms_stats": {
"key_field": "uniquePlayId",
"value_field": "scrubberPosition",
"size": "0"
}
}
}
}

i want to know terms_stats query size param 0.
it's mean full dump terms_stats results? all of result?

plz help me.