Elasticsearch completion suggester matching multiple inputs - elasticsearch

Question

I have an issue with ES completion suggester. I have the following index mapping:
curl -XPUT localhost:9200/test_index/ -d '{
"mappings": {
"item": {
"properties": {
"test_suggest": {
"type": "completion",
"index_analyzer": "whitespace",
"search_analyzer": "whitespace",
"payloads": false
}
}
}
}
}'
I index some names like so:
curl -X PUT 'localhost:9200/test_index/item/1?refresh=true' -d '{
"suggest" : {
"input": [ "John", "Smith" ],
"output": "John Smith",
"weight" : 34
}
}'
curl -X PUT 'localhost:9200/test_index/item/2?refresh=true' -d '{
"suggest" : {
"input": [ "John", "Doe" ],
"output": "John Doe",
"weight" : 34
}
}'
Now if I call suggest and provide only the first name John it works fine:
curl -XPOST localhost:9200/test_index/_suggest -d '{
"test_suggest":{
"text":"john",
"completion": {
"field" : "test_suggest"
}
}
}'
Same works for last names:
curl -XPOST localhost:9200/test_index/_suggest -d '{
"test_suggest":{
"text":"doe",
"completion": {
"field" : "test_suggest"
}
}
}'
Even searching for parts of last or first names work fine:
curl -XPOST localhost:9200/test_index/_suggest -d '{
"test_suggest":{
"text":"sm",
"completion": {
"field" : "test_suggest"
}
}
}'
However, when I try and search for something that includes part or all of the second word (last name) I get no suggestions, none of the calls below work:
curl -XPOST localhost:9200/test_index/_suggest -d '{
"test_suggest":{
"text":"john d",
"completion": {
"field" : "test_suggest"
}
}
}'
curl -XPOST localhost:9200/test_index/_suggest -d '{
"test_suggest":{
"text":"john doe",
"completion": {
"field" : "test_suggest"
}
}
}'
curl -XPOST localhost:9200/test_index/_suggest -d '{
"test_suggest":{
"text":"john smith",
"completion": {
"field" : "test_suggest"
}
}
}'
I wonder how can I achieve such a thing without having to put the input a single text field, since I want both to match first and/or last names on completion.

Answer 1

You should do this:
curl -X PUT 'localhost:9200/test_index/item/1?refresh=true' -d '{
"suggest" : {
"input": [ "John", "Smith", "John Smith" ],
"output": "John Smith",
"weight" : 34
}
}'
i.e. add all wanted terms combinations into the input.

Answer 2

I faced the same problem, then I used something like
curl -XPOST localhost:9200/test_index/_suggest -d '{
"test_suggest":{
"text":["john", "smith"],
"completion": {
"field" : "test_suggest"
}
}
}'