Elastic search query with Nest, search for text, but also filtering by flags





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0















I have the following query:



return Q
.MultiMatch(Fu => Fu
.Fields(F => F
.Field(Ff => Ff.Tags)
.Field(Ff => Ff.Title)
)
.Query(Terms)
.Fuzziness(Fuzziness.EditDistance(2))
);


How can I add a secondary part to the query that would perform:



"If the document has NO 'score' field OR if 'score' <= 1"



I don't see how to add this part with the API.










share|improve this question























  • What do you want to apply the predicate on the score field to? In addition to the multi_match query?

    – Russ Cam
    Nov 17 '18 at 0:39











  • yes; essentially I have a field that I need to use to remove a whole group from the search. maybe the name 'score' in my example could be confusing; let's call it 'flag': I would like to be able to apply the multi_match only to documents that don't have that field, or, if they have it, where it is < 1. All other documents are to be ignored.

    – Thomas
    Nov 17 '18 at 0:42


















0















I have the following query:



return Q
.MultiMatch(Fu => Fu
.Fields(F => F
.Field(Ff => Ff.Tags)
.Field(Ff => Ff.Title)
)
.Query(Terms)
.Fuzziness(Fuzziness.EditDistance(2))
);


How can I add a secondary part to the query that would perform:



"If the document has NO 'score' field OR if 'score' <= 1"



I don't see how to add this part with the API.










share|improve this question























  • What do you want to apply the predicate on the score field to? In addition to the multi_match query?

    – Russ Cam
    Nov 17 '18 at 0:39











  • yes; essentially I have a field that I need to use to remove a whole group from the search. maybe the name 'score' in my example could be confusing; let's call it 'flag': I would like to be able to apply the multi_match only to documents that don't have that field, or, if they have it, where it is < 1. All other documents are to be ignored.

    – Thomas
    Nov 17 '18 at 0:42














0












0








0








I have the following query:



return Q
.MultiMatch(Fu => Fu
.Fields(F => F
.Field(Ff => Ff.Tags)
.Field(Ff => Ff.Title)
)
.Query(Terms)
.Fuzziness(Fuzziness.EditDistance(2))
);


How can I add a secondary part to the query that would perform:



"If the document has NO 'score' field OR if 'score' <= 1"



I don't see how to add this part with the API.










share|improve this question














I have the following query:



return Q
.MultiMatch(Fu => Fu
.Fields(F => F
.Field(Ff => Ff.Tags)
.Field(Ff => Ff.Title)
)
.Query(Terms)
.Fuzziness(Fuzziness.EditDistance(2))
);


How can I add a secondary part to the query that would perform:



"If the document has NO 'score' field OR if 'score' <= 1"



I don't see how to add this part with the API.







elasticsearch nest






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 16 '18 at 12:47









ThomasThomas

1,27711638




1,27711638













  • What do you want to apply the predicate on the score field to? In addition to the multi_match query?

    – Russ Cam
    Nov 17 '18 at 0:39











  • yes; essentially I have a field that I need to use to remove a whole group from the search. maybe the name 'score' in my example could be confusing; let's call it 'flag': I would like to be able to apply the multi_match only to documents that don't have that field, or, if they have it, where it is < 1. All other documents are to be ignored.

    – Thomas
    Nov 17 '18 at 0:42



















  • What do you want to apply the predicate on the score field to? In addition to the multi_match query?

    – Russ Cam
    Nov 17 '18 at 0:39











  • yes; essentially I have a field that I need to use to remove a whole group from the search. maybe the name 'score' in my example could be confusing; let's call it 'flag': I would like to be able to apply the multi_match only to documents that don't have that field, or, if they have it, where it is < 1. All other documents are to be ignored.

    – Thomas
    Nov 17 '18 at 0:42

















What do you want to apply the predicate on the score field to? In addition to the multi_match query?

– Russ Cam
Nov 17 '18 at 0:39





What do you want to apply the predicate on the score field to? In addition to the multi_match query?

– Russ Cam
Nov 17 '18 at 0:39













yes; essentially I have a field that I need to use to remove a whole group from the search. maybe the name 'score' in my example could be confusing; let's call it 'flag': I would like to be able to apply the multi_match only to documents that don't have that field, or, if they have it, where it is < 1. All other documents are to be ignored.

– Thomas
Nov 17 '18 at 0:42





yes; essentially I have a field that I need to use to remove a whole group from the search. maybe the name 'score' in my example could be confusing; let's call it 'flag': I would like to be able to apply the multi_match only to documents that don't have that field, or, if they have it, where it is < 1. All other documents are to be ignored.

– Thomas
Nov 17 '18 at 0:42












1 Answer
1






active

oldest

votes


















1














Assuming a POCO something like



public class MyDocument 
{
public string Tags { get; set; }

public string Title { get; set; }

public int Score { get; set; }
}


You can use the overloaded operators on queries to construct compound bool queries, to satisfy the requirements



var client = new ElasticClient(settings);

var terms = "foo bar baz";

var searchResponse = client.Search<MyDocument>(s => s
.Query(q => q
.MultiMatch(mm => mm
.Fields(f => f
.Field(ff => ff.Tags)
.Field(ff => ff.Title)
)
.Query(terms)
.Fuzziness(Fuzziness.EditDistance(2))
) && +(!q
.Exists(e => e
.Field(f => f.Score)
) || q
.Range(r => r
.Field(f => f.Score)
.LessThan(1)
))
)
);


which results in the query



{
"query": {
"bool": {
"must": [
{
"multi_match": {
"query": "foo bar baz",
"fuzziness": 2,
"fields": [
"tags",
"title"
]
}
}
],
"filter": [
{
"bool": {
"should": [
{
"bool": {
"must_not": [
{
"exists": {
"field": "score"
}
}
]
}
},
{
"range": {
"score": {
"lt": 1.0
}
}
}
]
}
}
]
}
}
}


This is the more succinct form of the query



var searchResponse = client.Search<MyDocument>(s => s
.Query(q => q
.Bool(b => b
.Must(mu => mu
.MultiMatch(mm => mm
.Fields(f => f
.Field(ff => ff.Tags)
.Field(ff => ff.Title)
)
.Query(terms)
.Fuzziness(Fuzziness.EditDistance(2))
)
)
.Filter(fi => fi
.Bool(bb => bb
.Should(sh => sh
.Bool(bbb => bbb
.MustNot(mn => mn
.Exists(e => e
.Field(f => f.Score)
)
)
), sh => sh
.Range(r => r
.Field(f => f.Score)
.LessThan(1)
)
)
)
)
)
)
);





share|improve this answer
























  • Super helpful! thanks a lot Russ!

    – Thomas
    Nov 21 '18 at 22:02












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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









1














Assuming a POCO something like



public class MyDocument 
{
public string Tags { get; set; }

public string Title { get; set; }

public int Score { get; set; }
}


You can use the overloaded operators on queries to construct compound bool queries, to satisfy the requirements



var client = new ElasticClient(settings);

var terms = "foo bar baz";

var searchResponse = client.Search<MyDocument>(s => s
.Query(q => q
.MultiMatch(mm => mm
.Fields(f => f
.Field(ff => ff.Tags)
.Field(ff => ff.Title)
)
.Query(terms)
.Fuzziness(Fuzziness.EditDistance(2))
) && +(!q
.Exists(e => e
.Field(f => f.Score)
) || q
.Range(r => r
.Field(f => f.Score)
.LessThan(1)
))
)
);


which results in the query



{
"query": {
"bool": {
"must": [
{
"multi_match": {
"query": "foo bar baz",
"fuzziness": 2,
"fields": [
"tags",
"title"
]
}
}
],
"filter": [
{
"bool": {
"should": [
{
"bool": {
"must_not": [
{
"exists": {
"field": "score"
}
}
]
}
},
{
"range": {
"score": {
"lt": 1.0
}
}
}
]
}
}
]
}
}
}


This is the more succinct form of the query



var searchResponse = client.Search<MyDocument>(s => s
.Query(q => q
.Bool(b => b
.Must(mu => mu
.MultiMatch(mm => mm
.Fields(f => f
.Field(ff => ff.Tags)
.Field(ff => ff.Title)
)
.Query(terms)
.Fuzziness(Fuzziness.EditDistance(2))
)
)
.Filter(fi => fi
.Bool(bb => bb
.Should(sh => sh
.Bool(bbb => bbb
.MustNot(mn => mn
.Exists(e => e
.Field(f => f.Score)
)
)
), sh => sh
.Range(r => r
.Field(f => f.Score)
.LessThan(1)
)
)
)
)
)
)
);





share|improve this answer
























  • Super helpful! thanks a lot Russ!

    – Thomas
    Nov 21 '18 at 22:02
















1














Assuming a POCO something like



public class MyDocument 
{
public string Tags { get; set; }

public string Title { get; set; }

public int Score { get; set; }
}


You can use the overloaded operators on queries to construct compound bool queries, to satisfy the requirements



var client = new ElasticClient(settings);

var terms = "foo bar baz";

var searchResponse = client.Search<MyDocument>(s => s
.Query(q => q
.MultiMatch(mm => mm
.Fields(f => f
.Field(ff => ff.Tags)
.Field(ff => ff.Title)
)
.Query(terms)
.Fuzziness(Fuzziness.EditDistance(2))
) && +(!q
.Exists(e => e
.Field(f => f.Score)
) || q
.Range(r => r
.Field(f => f.Score)
.LessThan(1)
))
)
);


which results in the query



{
"query": {
"bool": {
"must": [
{
"multi_match": {
"query": "foo bar baz",
"fuzziness": 2,
"fields": [
"tags",
"title"
]
}
}
],
"filter": [
{
"bool": {
"should": [
{
"bool": {
"must_not": [
{
"exists": {
"field": "score"
}
}
]
}
},
{
"range": {
"score": {
"lt": 1.0
}
}
}
]
}
}
]
}
}
}


This is the more succinct form of the query



var searchResponse = client.Search<MyDocument>(s => s
.Query(q => q
.Bool(b => b
.Must(mu => mu
.MultiMatch(mm => mm
.Fields(f => f
.Field(ff => ff.Tags)
.Field(ff => ff.Title)
)
.Query(terms)
.Fuzziness(Fuzziness.EditDistance(2))
)
)
.Filter(fi => fi
.Bool(bb => bb
.Should(sh => sh
.Bool(bbb => bbb
.MustNot(mn => mn
.Exists(e => e
.Field(f => f.Score)
)
)
), sh => sh
.Range(r => r
.Field(f => f.Score)
.LessThan(1)
)
)
)
)
)
)
);





share|improve this answer
























  • Super helpful! thanks a lot Russ!

    – Thomas
    Nov 21 '18 at 22:02














1












1








1







Assuming a POCO something like



public class MyDocument 
{
public string Tags { get; set; }

public string Title { get; set; }

public int Score { get; set; }
}


You can use the overloaded operators on queries to construct compound bool queries, to satisfy the requirements



var client = new ElasticClient(settings);

var terms = "foo bar baz";

var searchResponse = client.Search<MyDocument>(s => s
.Query(q => q
.MultiMatch(mm => mm
.Fields(f => f
.Field(ff => ff.Tags)
.Field(ff => ff.Title)
)
.Query(terms)
.Fuzziness(Fuzziness.EditDistance(2))
) && +(!q
.Exists(e => e
.Field(f => f.Score)
) || q
.Range(r => r
.Field(f => f.Score)
.LessThan(1)
))
)
);


which results in the query



{
"query": {
"bool": {
"must": [
{
"multi_match": {
"query": "foo bar baz",
"fuzziness": 2,
"fields": [
"tags",
"title"
]
}
}
],
"filter": [
{
"bool": {
"should": [
{
"bool": {
"must_not": [
{
"exists": {
"field": "score"
}
}
]
}
},
{
"range": {
"score": {
"lt": 1.0
}
}
}
]
}
}
]
}
}
}


This is the more succinct form of the query



var searchResponse = client.Search<MyDocument>(s => s
.Query(q => q
.Bool(b => b
.Must(mu => mu
.MultiMatch(mm => mm
.Fields(f => f
.Field(ff => ff.Tags)
.Field(ff => ff.Title)
)
.Query(terms)
.Fuzziness(Fuzziness.EditDistance(2))
)
)
.Filter(fi => fi
.Bool(bb => bb
.Should(sh => sh
.Bool(bbb => bbb
.MustNot(mn => mn
.Exists(e => e
.Field(f => f.Score)
)
)
), sh => sh
.Range(r => r
.Field(f => f.Score)
.LessThan(1)
)
)
)
)
)
)
);





share|improve this answer













Assuming a POCO something like



public class MyDocument 
{
public string Tags { get; set; }

public string Title { get; set; }

public int Score { get; set; }
}


You can use the overloaded operators on queries to construct compound bool queries, to satisfy the requirements



var client = new ElasticClient(settings);

var terms = "foo bar baz";

var searchResponse = client.Search<MyDocument>(s => s
.Query(q => q
.MultiMatch(mm => mm
.Fields(f => f
.Field(ff => ff.Tags)
.Field(ff => ff.Title)
)
.Query(terms)
.Fuzziness(Fuzziness.EditDistance(2))
) && +(!q
.Exists(e => e
.Field(f => f.Score)
) || q
.Range(r => r
.Field(f => f.Score)
.LessThan(1)
))
)
);


which results in the query



{
"query": {
"bool": {
"must": [
{
"multi_match": {
"query": "foo bar baz",
"fuzziness": 2,
"fields": [
"tags",
"title"
]
}
}
],
"filter": [
{
"bool": {
"should": [
{
"bool": {
"must_not": [
{
"exists": {
"field": "score"
}
}
]
}
},
{
"range": {
"score": {
"lt": 1.0
}
}
}
]
}
}
]
}
}
}


This is the more succinct form of the query



var searchResponse = client.Search<MyDocument>(s => s
.Query(q => q
.Bool(b => b
.Must(mu => mu
.MultiMatch(mm => mm
.Fields(f => f
.Field(ff => ff.Tags)
.Field(ff => ff.Title)
)
.Query(terms)
.Fuzziness(Fuzziness.EditDistance(2))
)
)
.Filter(fi => fi
.Bool(bb => bb
.Should(sh => sh
.Bool(bbb => bbb
.MustNot(mn => mn
.Exists(e => e
.Field(f => f.Score)
)
)
), sh => sh
.Range(r => r
.Field(f => f.Score)
.LessThan(1)
)
)
)
)
)
)
);






share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 18 '18 at 23:17









Russ CamRuss Cam

105k24170229




105k24170229













  • Super helpful! thanks a lot Russ!

    – Thomas
    Nov 21 '18 at 22:02



















  • Super helpful! thanks a lot Russ!

    – Thomas
    Nov 21 '18 at 22:02

















Super helpful! thanks a lot Russ!

– Thomas
Nov 21 '18 at 22:02





Super helpful! thanks a lot Russ!

– Thomas
Nov 21 '18 at 22:02




















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