druid/docs/content/SearchQuery.md

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A search query returns dimension values that match the search specification.

{
  "queryType": "search",
  "dataSource": "sample_datasource",
  "granularity": "day",
  "searchDimensions": [
    "dim1",
    "dim2"
  ],
  "query": {
    "type": "insensitive_contains",
    "value": "Ke"
  },
  "sort" : {
    "type": "lexicographic"
  },
  "intervals": [
    "2013-01-01T00:00:00.000/2013-01-03T00:00:00.000"
  ]
}

There are several main parts to a search query:

property	description	required?
queryType	This String should always be "search"; this is the first thing Druid looks at to figure out how to interpret the query	yes
dataSource	A String defining the data source to query, very similar to a table in a relational database	yes
granularity	Defines the granularity of the query. See Granularities	yes
filter	See Filters	no
intervals	A JSON Object representing ISO-8601 Intervals. This defines the time ranges to run the query over.	yes
searchDimensions	The dimensions to run the search over. Excluding this means the search is run over all dimensions.	no
query	See SearchQuerySpec.	yes
sort	How the results of the search should sorted. Two possible types here are "lexicographic" and "strlen".	yes
context	An additional JSON Object which can be used to specify certain flags.	no

The format of the result is:

[
  {
    "timestamp": "2012-01-01T00:00:00.000Z",
    "result": [
      {
        "dimension": "dim1",
        "value": "Ke$ha"
      },
      {
        "dimension": "dim2",
        "value": "Ke$haForPresident"
      }
    ]
  },
  {
    "timestamp": "2012-01-02T00:00:00.000Z",
    "result": [
      {
        "dimension": "dim1",
        "value": "SomethingThatContainsKe"
      },
      {
        "dimension": "dim2",
        "value": "SomethingElseThatContainsKe"
      }
    ]
  }
]