ExAliyunOts.Search.prefix_query

You're seeing just the function prefix_query, go back to ExAliyunOts.Search module for more information.

prefix_query(field_name, prefix)

prefix_query(field_name(), prefix :: String.t()) :: map()

Use PrefixQuery as the nested :query option of :search_query option in ExAliyunOts.search/4.

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import MyApp.TableStore

search "table", "index_name",
  search_query: [
    query: prefix_query("name", "n")
  ]