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opensearch-docs-cn/_search-plugins/search-pipelines/search-processors.md

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layout title nav_order has_children parent grand_parent
default Search processors 50 true Search pipelines Search

Search processors

Search processors can be of the following types:

Search request processors

The following table lists all supported search request processors.

Processor Description Earliest available version
script Adds a script that is run on newly indexed documents. 2.8
filter_query Adds a filtering query that is used to filter requests. 2.8

Search response processors

The following table lists all supported search response processors.

Processor Description Earliest available version
rename_field Renames an existing field. 2.8
personalize_search_ranking Uses Amazon Personalize to rerank search results (requires setting up the Amazon Personalize service). 2.9

Viewing available processor types

You can use the Nodes Search Pipelines API to view the available processor types:

GET /_nodes/search_pipelines

{% include copy-curl.html %}

The response contains the search_pipelines object that lists the available request and response processors:

Response {: .text-delta} 
{
  "_nodes" : {
    "total" : 1,
    "successful" : 1,
    "failed" : 0
  },
  "cluster_name" : "runTask",
  "nodes" : {
    "36FHvCwHT6Srbm2ZniEPhA" : {
      "name" : "runTask-0",
      "transport_address" : "127.0.0.1:9300",
      "host" : "127.0.0.1",
      "ip" : "127.0.0.1",
      "version" : "3.0.0",
      "build_type" : "tar",
      "build_hash" : "unknown",
      "roles" : [
        "cluster_manager",
        "data",
        "ingest",
        "remote_cluster_client"
      ],
      "attributes" : {
        "testattr" : "test",
        "shard_indexing_pressure_enabled" : "true"
      },
      "search_pipelines" : {
        "request_processors" : [
          {
            "type" : "filter_query"
          },
          {
            "type" : "script"
          }
        ],
        "response_processors" : [
          {
            "type" : "rename_field"
          }
        ]
      }
    }
  }
}

In addition to the processors provided by OpenSearch, additional processors may be provided by plugins. {: .note}