elasticsearch : make a should into a filter - elasticsearch

Question

I would want to do search with a filter that exclude result that not match a condition OR anothor condition:
I tried to do a should into a filter but it fails:
POST /my_index/_search
{
"query": {
"bool": {
"filter": [
{
"should": [
{
"match": {
"type1_title": "searched match"
}
},
{
"match": {
"type2_title": "searched match"
}
}
]
}
]
}
}
}
it raises that error:
"error": {
"root_cause": [
{
"type": "parsing_exception",
"reason": "[should] query malformed, no start_object after query name",
"line": 9,
"col": 21
}
],
"type": "parsing_exception",
"reason": "[should] query malformed, no start_object after query name",
"line": 9,
"col": 21
},
"status": 400
}
Do you know if we can do an or in a filter?

Answer 1

Why not simply bool/should, there's no need for filter here
POST /my_index/_search
{
"query": {
"bool": {
"minimum_should_match": 1,
"should": [
{
"match": {
"type1_title": "searched match"
}
},
{
"match": {
"type2_title": "searched match"
}
}
]
}
}
}
If you really want to keep the bool/filter/should construct then you need to do it like this:
POST /my_index/_search
{
"query": {
"bool": {
"filter": [
{
"bool": {
"should": [
{
"match": {
"type1_title": "searched match"
}
},
{
"match": {
"type2_title": "searched match"
}
}
]
}
}
]
}
}
}