1. Elasticsearch Query DSL
… not just for wizards
Clinton Gormley
@clintongormley
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2. Copyright Elasticsearch 2014
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3. elasticsearch.org/guide
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4. elasticsearch
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5. elasticsearch real-time
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6. elasticsearch real-time distributed
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7. elasticsearch real-time distributed search
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8. elasticsearch real-time distributed search analytics
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9. mapping
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10. mapping
analysis
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11. mapping analysis query dsl
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12. mapping analysis query dsl
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13. query dsl
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14. query dsl flexible, powerful query language
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15. queries
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16. queries
filters
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17. queries filters boolean yes/no relevance
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18. queries filters boolean yes/no exact values relevance full text
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19. queries filters boolean yes/no exact values relevance cached full text
not cached
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20. queries filters boolean yes/no exact values relevance cached full text
faster
relevance
full text
not cached
slower
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21. queries filters boolean yes/no exact values relevance cached full text
faster
relevance
full text
not cached
slower
Filter first, then query remaining docs
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22. GET /_search
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23. GET /_search { "query": {...} }
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24. GET /_search { "query": { "match": { "title": "search" }} }
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25. GET /_search { "query": { match_all: {}} }
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26. GET /_search { "query": { match_all: {}} }
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27. GET /_search { "query": { "filtered": { "query": {...},
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28. GET /_search { "query": { "filtered": { "query": { "match": { "title":}
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29. GET /_search { "query": { "filtered": { "query": { "match": { "title":
"filter": { "term": { "status": "active" }} }
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30. GET /_search { "query": { "filtered": { "query": { "match_all": {}},
"filter": { "term": { "status": "active" }} }
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31. GET /_search { "query": { "filtered": { "query": { "match_all": {}},
"filter": { "term": { "status": "active" }} }
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32. how data is indexed
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33. "title": "Quick brown rabbits", {
"title": "Quick brown rabbits",
"content": "Brown rabbits are commonly seen" }
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34. "title": "Quick brown rabbits", {
"title": "Quick brown rabbits",
"content": "Brown rabbits are commonly seen" }
"title": "Keeping pets healthy",
"content": "My quick brown fox eats rabbits on a regular basis"
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35. where content like “%brown%fox%”{
"title": "Quick brown rabbits",
"content": "Brown rabbits are commonly seen" }
"title": "Keeping pets healthy",
"content": "My quick brown fox eats rabbits on regular basis"
where content like “%brown%fox%” a
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36. slow & inflexible { "title": "Quick brown rabbits",
"content": "Brown rabbits are commonly seen" }
"title": "Keeping pets healthy",
"content": "My quick brown fox eats rabbits on regular basis"
slow & inflexible a
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37. “analysis” { "title": "Quick brown rabbits",
"content": "Brown rabbits are commonly seen" }
"title": "Keeping pets healthy",
"content": "My quick brown fox eats rabbits on a regular basis"
“analysis”
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38. "title": "Quick brown rabbits", {
"title": "Quick brown rabbits",
"content": "Brown rabbits are commonly seen" }
"title": "Keeping pets healthy",
"content": "My quick brown fox eats rabbits on a regular basis"
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39. "title": [quick,brown,rabbits], {
"title": [quick,brown,rabbits],
"content": [brown,rabbits,are,commonly,seen] }
"title": [keeping,pets,healthy],
"content": [my,quick,brown,fox,eats,rabbits,on,a, regular,basis]
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40. field: content sorted list of unique terms Term Doc 1 Doc 2 a are
basis
brown
commonly
eats
fox my on
quick
rabbits
regular
seen
sorted list of unique terms
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41. field: content where they omyccur Term Doc 1 Doc 2 a are basis brown
commonly
they
eats
fox
omyccur on
quick rabbits regular seen
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42. field: content Term Doc 1 Doc 2 a are basis brown commonly eats fox my
quick
rabbits
regular
seen
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43. field: content Term Doc 1 Doc 2 a are basis brown commonly eats fox my
quick
rabbits
regular
seen
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44. inverted index
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45. inverted index not just for text
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46. inverted index numbers, dates, bools, enums geopoints, geoshapes, etc
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47. WHERE field = "value"
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48. WHERE field CONTAINS "value"
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49. WHERE field CONTAINS "value"
term filter
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50. WHERE field CONTAINS "value"
"term": {
"title": "brown" }
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51. GET /_search { "query": { }
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52. GET /_search { "query": { "filtered": { }
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53. GET /_search { "query": { "filtered": { "query": ... }, "filter": }
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54. GET /_search { "query": { "filtered": { "query": { "match_all": {}}, } }
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55. GET /_search { "query": { "filtered": { "query": { "match_all": {}}, } }
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56. GET /_search { "query": { "filtered": { "query": { "match_all": {} },
"filter": { "term": { "title": "brown" }} }
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57. field: title Term Doc 1 Doc 2 brown healthy keeping pets quick rabbits
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58. field: title Term Doc 1 Doc 2 brown healthy keeping pets quick rabbits
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59. "term": { "title": "brown" }
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60. "term": { "title": "brown" } ➔ result: bitset[ 1, 0 ]
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61. "term": { "title": "brown" } ➔ result: bitset[ 1, 0 ]
➔ cache as: "title:brown"
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62. WHERE field IN ["val",…]
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63. WHERE field IN ["val",…] terms filter
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64. WHERE field IN ["val",…] "terms": { "title": ["quick", "pets"] }
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65. field: title Term Doc 1 Doc 2 brown healthy keeping pets quick rabbits
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66. "terms": { "title": ["quick","pets"] }
➔ result: bitset[ 1, 1 ]
➔ cache as: "title:quick title:pets"
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67. WHERE field >= "val1" AND < "val2"
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68. WHERE field >= "val1" AND field < "val2"
range filter
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69. WHERE field >= "val1" AND field < "val2"
"range": {
"content":{ "gte": "a",
"lt": "m" }
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70. field: content Term Doc 1 Doc 2 a are basis brown commonly eats fox my
quick
rabbits
regular
seen
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71. "range": { "content":{ "gte": "a", "lt":
"m" } }
➔ result: bitset[ 1, 1 ]
➔ cache as: "content:[a TO m}"
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72. "range": { "date":{ "gte": "2014-­‐01-­‐01", "lt": "2041-­‐02-­‐01" }
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73. numeric/date fields optimised for range filters
"gte": "2014-­‐01-­‐01",
"lt": "2041-­‐02-­‐01" }
numeric/date fields optimised
for range filters
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74. "range": { "date":{ "gte": "now -­‐ 1h" }
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75. not cached "range": { "date":{ "gte": "now -­‐ 1h" }
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76. cached "range": { "date":{ "gte": "now -­‐ 1h / h" }
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77. WHERE field IS NOT NULL
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78. WHERE field has any term
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79. WHERE field has any term
exists filter
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80. WHERE field has any term
"exists": {
"field": "title" }
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81. WHERE field has no term missing filter
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82. WHERE field has no term "missing": { "field": "title" }
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83. AND … OR … NOT
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84. AND … OR … NOT bool filter
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85. "bool": { "must": [ <filters> ], "should": "must_not": ] }
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86. "bool": { "must": [ <filters> ], # AND "should": "must_not": ] }
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87. "bool": { "must": [ <filters> ], "should": # OR "must_not": ] }
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88. "bool": { "must": "should": [ <filters> ], "must_not": ] # NOT }
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89. "must": { "term": { "title": "rabbits" }},
"bool": {
"must": { "term": { "title": "rabbits" }}, }
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90. "must": { "term": { "title": "rabbits" }}, "should": [
"bool": {
"must": { "term": { "title": "rabbits" }}, "should": [
{ "term": { "title": "quick" }},
{ "term": { "content": "quick" }} ], }
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91. "must": { "term": { "title": "rabbits" }}, "should": [
"bool": {
"must": { "term": { "title": "rabbits" }}, "should": [
{ "term": { "title": "quick" }},
{ "term": { "content": "quick" }} ],
"must_not": { "term": { "content": "fox" }} }
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92. { "term": { "title": "rabbits" }}, { "term": { "content": "rabbits" }}
"bool": {
"must": [
{ "bool": {
"should": [
{ "term": { "title": "rabbits" }},
{ "term": { "content": "rabbits" }}
]}}, {
"term":
"title":
"quick"
}},
"content": }}
]}} ],
"must_not": {
"term": {
"content":
"fox" }} }
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93. not cached "bool": { "must": [ { "bool": { "should": [
{ "term": { "title": "rabbits" }},
{ "term": { "content": "rabbits" }}
]}},
{ "bool": {
"should": [
{ "term": { "title":
"quick" }},
{ "term": { "content": "quick" }}
]}} ],
"must_not": {
"term": {
"content":
"fox" }} }
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94. cached "bool": { "must": [ { "bool": { "should": [
{ "term": { "title":
"rabbits" }},
{ "term": { "content": "rabbits" }}
]}},
{ "bool": {
"should": [
{ "term": { "title":
"quick" }},
{ "term": { "content": "quick" }}
]}} ],
"must_not": {
"term": {
"content":
"fox" }} }
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95. (title:rabbits OR content:rabbits) AND
result bitset =
(title:rabbits OR content:rabbits) AND
(title:quick AND
NOT content:fox
OR content:quick)
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96. filters boolean yes/no exact values cached faster
Filter first, then query
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97. how relevant is this term?
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98. how relevant is this term?
term query
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99. how relevant is this term?
term query
≈ term filter + relevance
how relevant is this term?
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100. how relevant is this term?
"title": "brown" }
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101. GET /_search { "query": { }
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102. GET /_search { "query": { "term": { "title": "brown" }
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103. how relevant is this doc?{
"_index": "myindex",
"_type":
"_id":
"mytype",
"1",
"_score": 0.5,
"_source": {
"title": "Quick brown rabbits",
"content": "Brown rabbits are commonly seen" }
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104. relevance score
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105. relevance score How common is the term in this doc? ➔ more is better
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106. relevance score How common is the term in this doc? ➔ more is better
How common is the term in ALL docs?
➔ less is better
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107. relevance score How common is the term in this doc? ➔ more is better
How common is the term in ALL docs?
➔ less is better How long is this doc?
➔ shorter is better
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108. lucene similarity How common is the term in this doc? ➔ more is better
How common is the term in ALL docs?
➔ less is better How long is this doc?
➔ shorter is better
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109. lucene similarity How common is the term in this doc? ➔ more is better
How common is the term in ALL docs?
➔ less is better How long is this doc?
➔ shorter is better
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110. lucene similarity Term frequency How common is the term in ALL docs?
➔ less is better How long is this doc?
➔ shorter is better
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111. lucene similarity Term frequency How common is the term in ALL docs?
➔ less is better How long is this doc?
➔ shorter is better
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112. lucene similarity Term frequency
Inverse document frequency How long is this doc?
➔ shorter is better
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113. lucene similarity Term frequency
Inverse document frequency How long is this doc?
➔ shorter is better
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114. lucene similarity Term frequency
Inverse document frequency Length norm
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115. AND … OR … NOT
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116. AND … OR … NOT
bool query
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117. like bool filter, but different...
bool query
like bool filter, but different...
AND … OR … NOT
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118. "bool": { "must": "should": [ <queries> ], # AND "must_not": ]}
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119. "bool": { "must": "should": [ <queries> ], # AND Hmmm
"must_not": ]
NOT }
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120. [ <queries> ], # AND [ <queries> ], # Hmmm
"bool": {
"must":
[ <queries> ], # AND [ <queries> ], # Hmmm
"should":
"must_not": [ <queries> ], # NOT "minimum_should_match": ? # Hmmm }
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121. no "must" queries "bool": { "should": [ ] { "term": "title":
"quick" }},
"brown" }},
"rabbits" }} }
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122. no "must" queries at least one must match "bool": { "should": [ ] {
"term":
"title":
"quick" }},
"brown" }},
"rabbits" }} }
at least one must match
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123. minimum_should_match = 1
no "must" queries
"bool": {
"should": [ ] {
"term":
"title":
"quick" }},
"brown" }},
"rabbits" }} }
minimum_should_match = 1
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124. with "must" queries "bool": {
"must": { "term": { "title": "quick"}}, "should": [
{ "term": { "title": "brown" }},
{ "term": { "title": "rabbits" }} ] }
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125. with "must" queries all are optional! "bool": {
"must": { "term": { "title": "quick"}}, "should": [
{ "term": { "title": "brown" }},
{ "term": { "title": "rabbits" }} ] }
all are optional!
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126. minimum_should_match = 0
with "must" queries
"bool": {
"must": { "term": { "title": "quick"}}, "should": [
{ "term": { "title": "brown" }},
{ "term": { "title": "rabbits" }} ] }
minimum_should_match = 0
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127. bool filter ➔ T/F
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128. bool filter ➔ T/F query _score
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129. _score of bool query =
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130. _score of bool query = sum( _score of each query)
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131. sum( _score of each query) * num of matching queries
_score of bool query =
sum( _score of each query)
* num of matching queries
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132. sum( _score of each query) * num of matching queries / num of queries
_score of bool query =
sum( _score of each query)
* num of matching queries
/ num of queries
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133. more matching should queries
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134. better relevance score
more matching should queries ==
better relevance score
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135. trim the long tail "bool": { "should": [ ] { "term": "title":
"quick" }},
"brown" }},
"rabbits" }} }
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136. trim the long tail "bool": { "should": [ { "term": "title":
"quick" }},
"brown" }},
"rabbits" }} ],
"minimum_should_match": "75%" }
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137. trim the long tail "bool": { "should": [ { "term": "title":
"quick" }},
"brown" }},
"rabbits" }} ],
"minimum_should_match": "75%" # 2 of 3 }
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138. match query
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139. match query high level query
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140. match query high level query understands mapping & analysis
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141. match query ➔ analyze query string ➔ rewrite query
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142. one word query
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143. { "match": { "title": "QUICK!" }}
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144. { "match": { "title": "QUICK!" }} title:quick
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145. { "match": { "title": "QUICK!" }} title:quick { "term":
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

146. multi word query
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147. { "match": { "title": "QUICK FOX!" }}
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148. title:quick OR title:fox
{ "match":
{ "title": "QUICK FOX!" }}
title:quick OR title:fox
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149. title:quick OR title:fox
{ "match":
{ "title": "QUICK FOX!" }}
title:quick OR title:fox
{ "bool": {
"should": [
{ "term": { "title": "quick" }},
{ "term": { "title": "fox" }} ] }}
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150. all words must match
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151. { "match": { "title": "QUICK FOX!" }
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152. { "match": { "title": { "query": "QUICK FOX!", }
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153. { "match": { "title": { "query": "QUICK FOX!", "operator": "and" }
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154. { "term": { "title": "quick" }}, { "term": { "title": "fox" }} ] }
"bool": {
"should": [
{ "term": { "title": "quick" }},
{ "term": { "title": "fox" }} ] }
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155. { "term": { "title": "quick" }}, { "term": { "title": "fox" }} ] }
"bool": {
"must": [
{ "term": { "title": "quick" }},
{ "term": { "title": "fox" }} ] }
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156. trim long tail
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157. "minimum_should_match": "75%" }{
"match": {
"title": {
"query": "QUICK BROWN FOX!",
"minimum_should_match": "75%" }
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158. "minimum_should_match": 2 }{
"bool": {
"should": [
{ "term":
"title":
"quick"
}},
"brown"
"fox" }} ],
"minimum_should_match": 2 }
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159. fuzzy queries
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160. fuzzy queries levenshtein edit distance
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161. insertion
bron ➔
brown
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162. deletion bron ➔ brown foxs ➔ fox
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163. substitution bron ➔ brown foxs fox kiuck qiuck
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164. transposition bron ➔ brown foxs fox kiuck qiuck quick
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165. { "match": { "title": { "query": "KIUCK BRON FOXS!",
"fuzziness": "AUTO" }
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166. phrase / proximity
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167. "match_phrase": { "title":"QUICK BROWN FOX!" }
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168. "match_phrase": { "title": { "query": "BROWN QUICK FOX!", "slop": "10" }
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169. combine queries
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170. "must": { <min_should_match> }, "should": [
"bool": {
"must": { <min_should_match> }, "should": [ {
<fuzzy>
<proximity> }, } ] }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

171. "must": { <min_should_match> }, "should": [
"bool": {
"must": { <min_should_match> }, "should": [ {
<fuzzy>
<proximity> }, } ] }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

172. "query": "<words>", "minimum_should_match": "75%" }
"title": {
"query": "<words>", "minimum_should_match": "75%" }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

173. "must": { <min_should_match> }, "should": [
"bool": {
"must": { <min_should_match> }, "should": [ {
<fuzzy>
<proximity> }, } ] }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

174. "query": "<words>", "fuzziness": "AUTO" }
"match": {
"title": {
"query": "<words>", "fuzziness": "AUTO" }
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175. "must": { <min_should_match> }, "should": [
"bool": {
"must": { <min_should_match> }, "should": [ {
<fuzzy>
<proximity> }, } ] }
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176. "match_phrase": { "title": { "query": "<words>", "slop": "10" }
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177. "must": { <min_should_match> }, "should": [
"bool": {
"must": { <min_should_match> }, "should": [ {
<fuzzy>
<proximity> }, } ] }
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178. multi-field queries
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179. Copyright Elasticsearch 2014
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180. easy!
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181. { "match": {"middle": "Kenneth" }}, { "match": {"last": "Dwight" }} ],
"bool": {
"should": [
{ "match": {"first":
"Reginald" }},
{ "match": {"middle": "Kenneth" }},
{ "match": {"last": "Dwight" }} ],
"minimum_should_match": "75%" }
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182. Copyright Elasticsearch 2014
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183. hard!
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184. "content": "quick brown fox" }} ] }
"bool": {
"should": [
{ "match": {
"title":
}},
"quick brown fox"
"content": "quick brown fox" }} ] }
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185. "title": "Quick brown rabbits", {
"title": "Quick brown rabbits",
"content": "Brown rabbits are commonly seen" }
"title": "Keeping pets healthy",
"content": "My quick brown fox eats rabbits on a regular basis"
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186. better match { "title": "Quick brown rabbits",
"content": "Brown rabbits are commonly seen" } {
"title": "Keeping pets healthy",
"content": "My quick brown fox eats rabbits on a regular basis"
better match
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187. But 2 matches wins { "title": "Quick brown rabbits",
"content": "Brown rabbits are commonly seen" } {
"title": "Keeping pets healthy",
"content": "My quick brown fox eats rabbits on a regular basis"
But 2 matches wins
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188. dis_max query
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189. dis_max query all docs which match any query
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190. _score = best matching query
dis_max query
all docs which match any query
_score = best matching query
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191. "content": "quick brown fox" }} ] }
"bool": {
"should": [
{ "match": {
"title":
}},
"quick brown fox"
"content": "quick brown fox" }} ] }
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192. "content": "quick brown fox" }} ] }
"dis_max": {
"queries": [
{ "match": {
"title":
}},
"quick brown fox"
"content": "quick brown fox" }} ] }
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193. "title": "Quick brown rabbits", {
"title": "Quick brown rabbits",
"content": "Brown rabbits are commonly seen" }
"title": "Keeping pets healthy",
"content": "My quick brown fox eats rabbits on a regular basis"
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194. "title": "Keeping pets healthy", {
"title": "Keeping pets healthy",
"content": "My quick brown fox eats rabbits on a regular basis" }
"title": "Quick brown rabbits",
"content": "Brown rabbits are commonly seen"
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

195. "content": "quick brown fox" }} ], "tie_breaker": 0.2 }
"dis_max": {
"queries": [
{ "match": {
"title":
}},
"quick brown fox"
"content": "quick brown fox" }} ],
"tie_breaker": 0.2 }
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196. dis_max query all docs which match any query
_score = best matching query
+ tie_breaker * others
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197. multi_match query
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198. multi_match query match query on multiple fields
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199. "content": "quick brown fox" }} ], "tie_breaker": 0.2 }
"dis_max": {
"queries": [
{ "match": {
"title":
}},
"quick brown fox"
"content": "quick brown fox" }} ],
"tie_breaker": 0.2 }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

200. "multi_match": { "query": "fields": "quick brown fox",
[ "title", "content" ]
"tie_breaker": 0.2 }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

201. "multi_match": { "query": "fields": "quick brown fox",
[ "title", "content" ]
"tie_breaker": 0.2,
# "type": "best_fields" }
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202. best_fields
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203. best_fields find whole "concept" in one field
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204. best_fields "quick brown fox" in title or content
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205. best_fields "quick brown fox" in title or content dis_max
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206. "title": {
"type": }
"string"
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207. "title": { "type": "fields": { "string", }}
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

208. "title": { "type": "fields": { "string", "stemmed": { "string",
"analyzer": "english" } }}
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

209. "autocomplete": { "type": "string", "analyzer": "edge_ngrams" }}}
"title": {
"type":
"fields": {
"stemmed": {
"string",
"string",
"analyzer": "english" },
"autocomplete": { "type": "string",
"analyzer": "edge_ngrams"
}}}
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

210. title: [ brown, fox, jumped ]
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211. title: [ brown, fox, jumped ] title.stemmed: [ brown, fox, jump ]
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

212. title: [ brown, fox, jumped ]
title.stemmed:
[ brown, fox, jump ]
title.autocomplete
[ b, br, bro, brow, brown, f, fo, fox,
j, ju, jum, jump, jumpe, jumped ]
Copyright Elasti
csearch Copying, publishing and/or distributing without written permission is strictly prohibited.

213. "query": "quick brown fox", "fields": [
"multi_match": {
"query": "quick brown fox", "fields": [
"title", "title.stemmed", "title.autocomplete" ]
"type":
"most_fields" }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

214. most_fields
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215. most_fields match same text analyzed in different ways
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216. most_fields more matching fields = better
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217. most_fields more matching fields = better bool
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218. { "first": "Reginald", "middle": "Kenneth" "last": "Dwight" }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

219. "query": "Reginald Kenneth Dwight", "fields": [ "first",
"multi_match": {
"query": "Reginald Kenneth Dwight", "fields": [
"first",
"middle", "last" ] }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

220. "query": "Reginald Kenneth Dwight", "fields": [ "first",
"multi_match": {
"query": "Reginald Kenneth Dwight", "fields": [
"first",
"middle", "last" ]
"type":
"????" }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

221. "query": "Reginald Kenneth Dwight", "fields": [ "first",
"multi_match": {
"query": "Reginald Kenneth Dwight", "fields": [
"first",
"middle", "last" ]
"type":
"most_fields" }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

222. "query": "Reginald Kenneth Dwight", "fields": [ "first",
"multi_match": {
"query": "Reginald Kenneth Dwight", "fields": [
"first",
"middle", "last" ]
"type":
"most_fields" }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

223. problem
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224. problem
field centric
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

225. first: Reginald OR first: Kenneth OR first: Dwight (
middle:Reginald OR middle:Kenneth OR middle:Dwight
) OR (
last:
Reginald Kenneth Dwight
OR last: )
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

226. first: Reginald OR first: Kenneth OR first: Dwight (
middle:Reginald OR middle:Kenneth OR middle:Dwight
) OR (
last:
Reginald Kenneth Dwight
OR last: )
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

227. problem
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228. problem
operator: and
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229. first: Reginald AND first: Kenneth AND first: Dwight (
) OR (
middle:Reginald AND middle:Kenneth AND middle:Dwight
last: AND last: AND last:
Reginald Kenneth Dwight )
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

230. first: Reginald AND first: Kenneth AND first: Dwight (
) OR (
middle:Reginald AND middle:Kenneth AND middle:Dwight
last: AND last: AND last:
Reginald Kenneth Dwight )
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231. problem
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232. problem term frequencies
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233. problem term frequencies first:dwight ➔ common
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234. problem term frequencies first:dwight last: dwight ➔ common ➔ uncommon
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235. solution
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236. index time solution
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237. index time solution single "fullname" field
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238. "first": { "type": "string" }, "middle": { "last": { }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

239. "first": { "type": "string" }, "middle": { "last": { "full": { }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

240. "type": "string", "copy_to": "full" }, "middle": {
"first": {
"type": "string", "copy_to": "full" },
"middle": {
"last": {
"full": {
"type": "string" }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

241. "full": "Reginald Kenneth Dwight", "minimum_should_match": "75%" }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

242. query time solution
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

243. query time solution term-centric query
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244. first: Reginald AND first: Kenneth AND first: Dwight (
) OR (
middle:Reginald AND middle:Kenneth AND middle:Dwight
last: AND last: AND last:
Reginald Kenneth Dwight )
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

245. first: Reginald middle:Reginald ( OR OR last: Reginald
) AND (
first: Kenneth OR middle:Kenneth OR last: Kenneth
first: Dwight OR middle:Dwight OR last: Dwight )
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

246. blend(first,middle,last):Reginald AND
blend(first,middle,last):Reginald AND blend(first,middle,last):Kenneth AND blend(first,middle,last):Dwight
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

247. blends term frequencies
blend(first,middle,last):Reginald AND blend(first,middle,last):Kenneth AND blend(first,middle,last):Dwight
blends term frequencies
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248. cross_fields
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249. cross_fields query multiple fields as if they were one
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250. "query": "Reginald Kenneth Dwight", "fields": [ "first",
"multi_match": {
"query": "Reginald Kenneth Dwight", "fields": [
"first",
"middle", "last" ]
"type":
"cross_fields" }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

251. "query": "Reginald Kenneth Dwight", "fields": [ "first",
"multi_match": {
"query": "Reginald Kenneth Dwight", "fields": [
"first",
"middle", "last" ]
"type": "cross_fields", "minimum_should_match": "75%" }
Copyright Elasticsearch Copying, publishing and/or distributing without written permission is strictly prohibited.

252. best_fields: most_fields: cross_fields: whole concept in single field
same text, different analyzers
cross_fields:
treat multiple fields as one
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253. understand the building blocks
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254. the rest is details
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255. thank you @clintongormley
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256. thank you @clintongormley
elasticsearch.org/downloads elasticsearch.com/support elasticsearch.com/jobs
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