FTS: For a match_phrase query in one test, FTS doesn't returns same results as ES

{

 "mapping": {

 "default_analyzer": "standard", 

 "default_datetime_parser": "dateTimeOptional", 

 "type_field": "type", 

 "default_mapping": {

 "default_analyzer": "", 

 "dynamic": true, 

 "enabled": false

 }, 

 "default_type": "_default", 

 "analysis": {

 "analyzers": {

 "customAnalyzer1": {

 "type": "custom", 

 "char_filters": [

 "mapping"

 ], 

 "tokenizer": "unicode", 

 "token_filters": [

 "shingle", 

 "front_edge_ngram"

 ]

 }

 }, 

 "token_maps": {

 "stopwords": {

 "tokens": [

 "i", 

 "me", 

 "my", 

 "myself", 

 "we", 

 "our", 

 "ours", 

 "ourselves", 

 "you", 

 "your", 

 "yours", 

 "yourself", 

 "yourselves", 

 "he", 

 "him", 

 "his", 

 "himself", 

 "she", 

 "her", 

 "hers", 

 "herself", 

 "it", 

 "its", 

 "itself", 

 "they", 

 "them", 

 "their", 

 "theirs", 

 "themselves", 

 "what", 

 "which", 

 "who", 

 "whom", 

 "this", 

 "that", 

 "these", 

 "those", 

 "am", 

 "is", 

 "are", 

 "was", 

 "were", 

 "be", 

 "been", 

 "being", 

 "have", 

 "has", 

 "had", 

 "having", 

 "do", 

 "does", 

 "did", 

 "doing", 

 "would", 

 "should", 

 "could", 

 "ought", 

 "i'm", 

 "you're", 

 "he's", 

 "she's", 

 "it's", 

 "we're", 

 "they're", 

 "i've", 

 "you've", 

 "we've", 

 "they've", 

 "i'd", 

 "you'd", 

 "he'd", 

 "she'd", 

 "we'd", 

 "they'd", 

 "i'll", 

 "you'll", 

 "he'll", 

 "she'll", 

 "we'll", 

 "they'll", 

 "isn't", 

 "aren't", 

 "wasn't", 

 "weren't", 

 "hasn't", 

 "haven't", 

 "hadn't", 

 "doesn't", 

 "don't", 

 "didn't", 

 "won't", 

 "wouldn't", 

 "shan't", 

 "shouldn't", 

 "can't", 

 "cannot", 

 "couldn't", 

 "mustn't", 

 "let's", 

 "that's", 

 "who's", 

 "what's", 

 "here's", 

 "there's", 

 "when's", 

 "where's", 

 "why's", 

 "how's", 

 "a", 

 "an", 

 "the", 

 "and", 

 "but", 

 "if", 

 "or", 

 "because", 

 "as", 

 "until", 

 "while", 

 "of", 

 "at", 

 "by", 

 "for", 

 "with", 

 "about", 

 "against", 

 "between", 

 "into", 

 "through", 

 "during", 

 "before", 

 "after", 

 "above", 

 "below", 

 "to", 

 "from", 

 "up", 

 "down", 

 "in", 

 "out", 

 "on", 

 "off", 

 "over", 

 "under", 

 "again", 

 "further", 

 "then", 

 "once", 

 "here", 

 "there", 

 "when", 

 "where", 

 "why", 

 "how", 

 "all", 

 "any", 

 "both", 

 "each", 

 "few", 

 "more", 

 "most", 

 "other", 

 "some", 

 "such", 

 "no", 

 "nor", 

 "not", 

 "only", 

 "own", 

 "same", 

 "so", 

 "than", 

 "too", 

 "very"

 ], 

 "type": "custom"

 }

 }, 

 "tokenizers": {

 "alphanumeric": {

 "regexp": "[0-9a-zA-Z_]*", 

 "type": "regexp"

 }

 }, 

 "char_filters": {

 "mapping": {

 "regexp": "[f]", 

 "type": "regexp", 

 "replace": "ph"

 }

 }, 

 "token_filters": {

 "dict_compound_en": {

 "dict_token_map": "stop_en", 

 "type": "dict_compound"

 }, 

 "keyword_marker": {

 "type": "keyword_marker", 

 "keywords_token_map": "stopwords"

 }, 

 "truncate": {

 "length": 10, 

 "type": "truncate_token"

 }, 

 "dict_compound_fr": {

 "dict_token_map": "articles_fr", 

 "type": "dict_compound"

 }, 

 "ngram": {

 "max": 5, 

 "type": "ngram", 

 "min": 3

 }, 

 "front_edge_ngram": {

 "max": 5, 

 "type": "edge_ngram", 

 "back": false, 

 "min": 3

 }, 

 "back_edge_ngram": {

 "max": 5, 

 "type": "edge_ngram", 

 "back": true, 

 "min": 3

 }, 

 "shingle": {

 "output_original": "false", 

 "min": 2, 

 "filler": "", 

 "max": 5, 

 "separator": "", 

 "type": "shingle"

 }, 

 "length": {

 "max": 5, 

 "type": "length", 

 "min": 3

 }, 

 "stopwords": {

 "stop_token_map": "stopwords", 

 "type": "stop_tokens"

 }

 }

 }, 

 "default_field": "_all", 

 "types": {

 "emp": {

 "enabled": true, 

 "dynamic": false, 

 "properties": {

 "dept": {

 "enabled": true, 

 "dynamic": false, 

 "properties": {}, 

 "fields": [

 {

 "index": true, 

 "name": "dept", 

 "include_in_all": true, 

 "type": "text", 

 "analyzer": "customAnalyzer1", 

 "include_term_vectors": true, 

 "store": false

 }

 ]

 }, 

 "join_date": {

 "enabled": true, 

 "dynamic": false, 

 "properties": {}, 

 "fields": [

 {

 "index": true, 

 "name": "join_date", 

 "include_in_all": true, 

 "type": "datetime", 

 "analyzer": "", 

 "include_term_vectors": true, 

 "store": false

 }

 ]

 }, 

 "manages": {

 "enabled": true, 

 "dynamic": false, 

 "properties": {

 "team_size": {

 "enabled": true, 

 "dynamic": false, 

 "properties": {}, 

 "fields": [

 {

 "index": true, 

 "name": "team_size", 

 "include_in_all": true, 

 "type": "number", 

 "analyzer": "", 

 "include_term_vectors": true, 

 "store": false

 }

 ]

 }, 

 "reports": {

 "enabled": true, 

 "dynamic": false, 

 "properties": {}, 

 "fields": [

 {

 "index": true, 

 "name": "reports", 

 "include_in_all": true, 

 "type": "text", 

 "analyzer": "customAnalyzer1", 

 "include_term_vectors": true, 

 "store": false

 }

 ]

 }

 }, 

 "fields": []

 }, 

 "languages_known": {

 "enabled": true, 

 "dynamic": false, 

 "properties": {}, 

 "fields": [

 {

 "index": true, 

 "name": "languages_known", 

 "include_in_all": true, 

 "type": "text", 

 "analyzer": "customAnalyzer1", 

 "include_term_vectors": true, 

 "store": false

 }

 ]

 }

 }, 

 "fields": []

 }

 }

 }

2019-08-02 10:18:31 | INFO | MainProcess | Cluster_Thread | [task.execute] ----------------------------------------------------- Query # 53 ----------------------------------------------------

2019-08-02 10:18:31 | INFO | MainProcess | Cluster_Thread | [fts_base.run_fts_query] Running query \{"indexName": "custom_index", "from": 0, "fields": [], "explain": false, "ctl": {"timeout": 60000, "consistency": {"vectors": {}, "level": ""}}, "query": \{"field": "manages.reports", "match_phrase": "Balandria Deandra Kory"}, "size": 10000000} on node: 192.168.10.12:

2019-08-02 10:18:31 | INFO | MainProcess | Cluster_Thread | [task.execute] Status: \{u'successful': 6, u'failed': 0, u'total': 6}

2019-08-02 10:18:31 | INFO | MainProcess | Cluster_Thread | [task.execute] FTS hits for query: \{"field": "manages.reports", "match_phrase": "Balandria Deandra Kory"} is 0 (took 0.954437ms)

2019-08-02 10:18:31 | INFO | MainProcess | Cluster_Thread | [es_base.search] ES query '\{u'query': {u'match_phrase': {u'manages.reports': u'Balandria Deandra Kory'}}}' 

2019-08-02 10:18:31 | INFO | MainProcess | Cluster_Thread | [task.execute] ES hits for query: \{"query": {"match_phrase": {"manages.reports": "Balandria Deandra Kory"}}} on es_index is 2 (took 3ms)

2019-08-02 10:18:31 | ERROR | MainProcess | Cluster_Thread | [task.execute] FAIL: FTS hits: 0, while ES hits: 2

2019-08-02 10:26:55 | ERROR | MainProcess | Cluster_Thread | [task.execute] FAIL: Following 2 docs were not returned by FTS, but ES, printing 50: [u'emp10000825', u'emp10000884']