How to combine "must" and "should" in Elasticsearch query? - elasticsearch

Question

I need to "translate" this pseudo-SQL query in Elasticsearch query DSL:
select from invoice where invoiceType = 'REGULAR' and receiver =
'CUSTOMER' and (invoiceStatus = 'DISPATCHED' or invoiceStatus = 'PAYED')
I have this:
{
"query": {
"bool": {
"must": [
{ "match": { "invoiceType": "REGULAR" }},
{ "match": { "receiver": "CUSTOMER" }},
{ "bool" : {
"should": [
{"match" : {"invoiceStatus": "DISPATCHED"}},
{"match" : {"invoiceStatus": "PAYED"}}
]
}
}
]
}
}
}
That query is returning 0 results, but I know there are many that matches what I'm searching for. AFAIK, must would be like 'AND' and should like 'OR'. What am I missing?

Answer 1

Not sure that it will work for you or not but you can make a try and see what you get? Though I did some change with match to term. Hope this will help you.
GET /invoice/_search
{
"query" : {
"constant_score" : {
"filter" : {
"bool" : {
"must" : [
{ "term" : {"invoiceType" : "REGULAR"}},
{ "term": { "receiver": "CUSTOMER" }},
{ "bool" : {
"should" : [
{"terms": {"invoiceStatus": ["DISPATCHED","PAYED"]}}
]
}}
]
}
}
}
}
}
OR
GET /invoice/_search
{
"query" : {
"constant_score" : {
"filter" : {
"bool" : {
"must" : [
{ "term" : {"invoiceType" : "REGULAR"}},
{ "term": { "receiver": "CUSTOMER" }},
{ "bool" : {
"should" : [
{"term": {"invoiceStatus": "DISPATCHED"}},
{"term": {"invoiceStatus": "PAYED"}}
]
}}
]
}
}
}
}
}