Parent queries

Parent queries can be applied to document metadata provided as a json of token fields, e.g.:

"metadata": [
  {
    "$type": "ai.lum.odinson.TokensField",
    "name": "show",
    "tokens": ["Twin", "Peaks"]
  },
  {
    "$type": "ai.lum.odinson.TokensField",
    "name": "actor",
    "tokens": ["Kyle", "MacLachlan"]
  },
  {
    "$type": "ai.lum.odinson.TokensField",
    "name": "character",
    "tokens": ["Special", "Agent", "Dale", "Cooper"]
  }
]

Parent queries use Lucene query syntax to query metadata fields. For instance, the parent query below will limit the document collection to only the documents related to the show Twin Peaks based on the example metadata above:

show: "Twin Peaks"

The following parent query will limit the documents based on both the show and the actor:

character: "Special Agent Dale Cooper" AND show: "Fire Walk With Me"

See the testing suite for more query examples. Parent queries are also available in the REST API.