unsigned_long field type doesn't work with function_score decay functions #89603
Description
Elasticsearch Version
8.4
Installed Plugins
No response
Java Version
bundled
OS Version
any
Problem Description
unsigned_long field type doesn't work with function_score decay functions, and produces an error:
"type" : "parsing_exception", "reason" : "field [unsigned_long_test] is of type [org.elasticsearch.xpack.unsignedlong.UnsignedLongFieldMapper$UnsignedLongFieldType@10281e68], but only numeric types are supported." Steps to Reproduce
1. Create index
PUT numeric-test-mapping { "mappings": { "properties": { "double_test": { "type": "double" }, "unsigned_long_test": { "type": "unsigned_long" }, "long_test": { "type": "long" } } } } 2. Create documents with numeric values for the 3 different fields
POST numeric-test-mapping/_doc/ { "double_test": 10, "unsigned_long_test": 10, "long_test": 10 } POST numeric-test-mapping/_doc/ { "double_test": 11, "unsigned_long_test": 11, "long_test": 11 } POST numeric-test-mapping/_doc/ { "double_test": 12, "unsigned_long_test": 12, "long_test": 12 } 3. Run search on index created
GET numeric-test-mapping/_search { "from": 0, "size": 10, "query": { "function_score": { "functions": [ { "gauss":{ "unsigned_long_test":{ "scale": 1, "origin": 0 } } }] } } } Logs (if relevant)
No response