How to sort by field in elasticsearch? - sorting

Question

I have a mysql query like this:
SELECT SQL_CALC_FOUND_ROWS wp_posts.ID
FROM wp_posts
WHERE 1=1
AND wp_posts.ID IN (2991,2993,2989,2983,2987)
AND wp_posts.post_type = 'product'
AND ((wp_posts.post_status = 'publish'))
ORDER BY FIELD( wp_posts.ID, 2991,2993,2989,2983,2987 )
LIMIT 0, 10
And I want to note the specific line:
ORDER BY FIELD( wp_posts.ID, 2991,2993,2989,2983,2987 )
In elasticsearchwe can only have sort order by asc or desc: https://www.elastic.co/guide/en/elasticsearch/reference/current/search-request-sort.html#_sort_order
So anyone can point me out on how to achieve the order by field (id, x,y,z) in elasticsearch query?

Answer 1

It's not as easy as SQL but you can use function_score and multiple matches for you'r values.
something like this:
{
"query": {
"function_score": {
"query": {
"bool": {
"must": [
{
"terms": {
" ID": [
2991,
2993,
2989,
2983,
2987
]
}
},
{
"term": {
"post_type": {
"value": "product"
}
}
},
{
"term": {
"post_status": {
"value": "publish"
}
}
}
]
}
},
"boost": "5",
"functions": [
{
"filter": {
"match": {
"ID": 2991
}
},
"weight": 100
},
{
"filter": {
"match": {
"test": 2993
}
},
"weight": 99
},
{
"filter": {
"match": {
"test": 2989
}
},
"weight": 98
},
{
"filter": {
"match": {
"test": 2983
}
},
"weight": 97
},
{
"filter": {
"match": {
"test": 2987
}
},
"weight": 96
}
],
"score_mode": "max",
"boost_mode": "multiply"
}
}
}