convert ingest processor does not convert float to integer #128160
Description
Elasticsearch Version
8.18.0
Installed Plugins
No response
Java Version
bundled
OS Version
6.8.0-52-generic #53~22.04.1-Ubuntu
Problem Description
The convert ingest processor does not successfully convert from float to integer types and this absence of capacity is not excluded by the documentation. Either it should be documented that convert is not a general purpose conversion processor or the capacity should be added (preferably the latter).
Steps to Reproduce
POST _ingest/pipeline/_simulate
{
"pipeline": {
"processors": [
{
"convert": {
"field": "value",
"target_field": "final",
"type": "long"
}
}
]
},
"docs": [
{
"_source": {
"value": 9007199254740991
}
},
{
"_source": {
"value": 9007199254740991.0
}
},
{
"_source": {
"value": "9007199254740991"
}
}
]
}
gives
{
"docs": [
{
"doc": {
"_index": "_index",
"_version": "-3",
"_id": "_id",
"_source": {
"final": 9007199254740992,
"value": 9007199254740992
},
"_ingest": {
"timestamp": "2025-05-15T06:59:51.39992104Z"
}
}
},
{
"error": {
"root_cause": [
{
"type": "illegal_argument_exception",
"reason": "unable to convert [9.007199254740991E15] to long"
}
],
"type": "illegal_argument_exception",
"reason": "unable to convert [9.007199254740991E15] to long",
"caused_by": {
"type": "number_format_exception",
"reason": "For input string: \"9.007199254740991E15\""
}
}
},
{
"doc": {
"_index": "_index",
"_version": "-3",
"_id": "_id",
"_source": {
"final": 9007199254740991,
"value": "9007199254740991"
},
"_ingest": {
"timestamp": "2025-05-15T06:59:51.399935971Z"
}
}
}
]
}
Logs (if relevant)
No response