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@thnery
Forked from mankind/rails-jsonb-queries
Last active October 5, 2018 13:59
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Rails-5 postgresql-9.6 jsonb queries
"http://stackoverflow.com/questions/22667401/postgres-json-data-type-rails-query"
"http://stackoverflow.com/questions/40702813/query-on-postgres-json-array-field-in-rails"
# payload: [{"kind"=>"person"}]
Segment.where("payload @> ?", [{kind: "person"}].to_json)
# data: {"interest"=>["music", "movies", "programming"]}
Segment.where("data @> ?", {"interest": ["music", "movies", "programming"]}.to_json)
Segment.where("data #>> '{interest, 1}' = 'movies' ")
Segment.where("jsonb_array_length(data->'interest') > 1")
Segment.where("data->'interest' ? :value", value: "movies")
Segment.where("data -> 'interest' ? :value", value: ['programming'])
# data: {"customers"=>[{:name=>"david"}]}
Segment.where("data #> '{customers,0}' ->> 'name' = 'david' ")
Segment.where("data @> ?", {"customers": [{"name": "david"}]}.to_json)
Segment.where("data -> 'customers' @> '[{\"name\": \"david\"}]'")
Segment.where(" data -> 'customers' @> ?", [{name: "david"}].to_json)
# data: {"uid"=>"5", "blog"=>"recode"}
Segment.where("data @> ?", {uid: '5'}.to_json)
Segment.where("data ->> 'blog' = 'recode'")
Segment.where("data ->> 'blog' = ?", "recode")
Segment.where("data ? :key", :key => 'uid')
Segment.where("data -> :key LIKE :value", :key => 'blog, :value => "%recode%")
# tags: ["dele, jones", "solomon"]
# get a single tag
Segment.where("'solomon' = ANY (tags)")
# which segments are tagged with 'solomon'
Segment.where('? = ANY (tags)', 'solomon')
# which segments are not tagged with 'solomon'
Segment.where('? != ALL (tags)', 'solomon')
# or
Segment.where('NOT (? = ANY (tags))', 'solomon')
# multiple tags
Segment.where("tags @> ARRAY[?]::varchar[]", ["dele, "jones", "solomon"])
Segment.where("ARRAY[?]::varchar[] && tags", ["dele", "jones"]
# tags with 3 items
Segment.where("array_length(tags, 1) >= 3")
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