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Fusion 5.9
    Fusion 5.9

    Milvus Ensemble Query Stage

    The Milvus Ensemble Query stage performs ensemble of different search results to retrieve metadata from Solr (see Milvus documentation).

    Deprecated

    This stage is deprecated in Fusion 5.9.5 and later. It will be removed in a future release.

    Replace the Milvus Ensemble Query Stage with Seldon or Lucidworks AI vector query stages. These alternatives improve performance when updating response documents with vector similarity data.

    Query pipeline stage condition examples

    Stages can be triggered conditionally when a script in the Condition field evaluates to true. Some examples are shown below.

    Run this stage only for mobile clients:

    params.deviceType === "mobile"

    Run this stage when debugging is enabled:

    params.debug === "true"

    Run this stage when the query includes a specific term:

    params.q && params.q.includes("sale")

    Run this stage when multiple conditions are met:

    request.hasParam("fusion-user-name") && request.getFirstParam("fusion-user-name").equals("SuperUser");
    !request.hasParam("isFusionPluginQuery")

    The first condition checks that the request parameter "fusion-user-name" is present and has the value "SuperUser". The second condition checks that the request parameter "isFusionPluginQuery" is not present.

    Configuration

    When entering configuration values in the UI, use unescaped characters, such as \t for the tab character. When entering configuration values in the API, use escaped characters, such as \\t for the tab character.

    Performs ensemble of different search results to retrieve metadata from Solr.

    skip - boolean

    Set to true to skip this stage.

    Default: false

    label - string

    A unique label for this stage.

    <= 255 characters

    condition - string

    Define a conditional script that must result in true or false. This can be used to determine if the stage should process or not.

    ensembleExpression - stringrequired

    Can reference results (numeric_id, score) map objects by key in the context, as well as max_[context key], min_[context key], count_[context key] etc.

    >= 1 characters

    Default: 1.0 * milvus_results

    resultFieldName - stringrequired

    Field name to store result ensemble score

    >= 1 characters

    Default: ensemble_score

    threshold - number

    Only documents with scores greater than or equal to the threshold will be returned

    failOnError - boolean

    Flag to indicate if this stage should throw an exception if an error occurs.

    Default: false