# Function\_score boost\_mode broken in version 5
**URL:** https://discuss.elastic.co/t/function-score-boost-mode-broken-in-version-5/64674
**Category:** Elasticsearch
**Created:** [November 2, 2016, 6:44am UTC](https://discuss.elastic.co/t/function-score-boost-mode-broken-in-version-5/64674 "2016-11-02T06:44:10Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@davidbkemp](https://discuss.elastic.co/u/davidbkemp)
#### Post date: [November 2, 2016, 6:44am UTC](https://discuss.elastic.co/t/function-score-boost-mode-broken-in-version-5/64674/1 "2016-11-02T06:44:10Z")
I am having problems with "function\_score" queries involving the combination of a query with a list of functions.
I get the impression that the "boost\_mode" is being ignored. This used to work in version 2.4.0
Here is an example.
Start with these four documents:
```auto
POST /test/test/1
{
"description": "banana",
"date": "2016-01-01"
}
POST /test/test/2
{
"description": "orange",
"date": "2016-02-01"
}
POST /test/test/3
{
"description": "banana",
"date": "2016-03-01"
}
POST /test/test/4
{
"description": "orange",
"date": "2016-04-01"
}
```
The following query returns the three desired documents, but they all get scores of zero.
If I replace the bool/filter with bool/must, I get scores of 6 and 4 even though the "replace" directive should have resulted in scores of 3 and 2.
If I use "explain=true" it looks like it is still multiplying the query score by the weights.
If I go back to my original bool/filter but remove the second ("gte") range filter, then one of the documents gets a score of 2, but the others get scores of zero.
Note: the query seems to work in version 2.4.0, but not in 5.0.0
```auto
GET /test/test/_search
{
"query": {
"function_score": {
"boost_mode": "replace",
"score_mode": "max",
"query": {
"bool": {
"filter": [
{
"range": {
"date": {
"lte": "2016-03-01"
}
}
},
{
"range": {
"date": {
"gte": "2015-01-01"
}
}
}
]
}
},
"functions": [
{
"weight": 3,
"filter": {
"match": {
"description": "banana"
}
}
},
{
"weight": 2,
"filter": {
"match": {
"description": "orange"
}
}
}
]
}
}
}
```
---
### Author:  [@davidbkemp](https://discuss.elastic.co/u/davidbkemp)
#### Post date: [February 11, 2017, 2:56am UTC](https://discuss.elastic.co/t/function-score-boost-mode-broken-in-version-5/64674/2 "2017-02-11T02:56:09Z")
This has now been fixed in version 5.2. 😄
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 5, 2017, 10:03pm UTC](https://discuss.elastic.co/t/function-score-boost-mode-broken-in-version-5/64674/3 "2017-07-05T22:03:22Z")