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You're viewing version 2.12 of the OpenSearch documentation. This version is no longer maintained. For the latest version, see the current documentation. For information about OpenSearch version maintenance, see Release Schedule and Maintenance Policy.

Search for a memory

Introduced 2.12

This API retrieves a conversational memory for conversational search. Use this command to search for memories.

When the Security plugin is enabled, all memories exist in a private security mode. Only the user who created a memory can interact with that memory and its messages.

Path and HTTP methods

GET /_plugins/_ml/memory/_search
POST /_plugins/_ml/memory/_search

Example request: Searching for all memories

POST /_plugins/_ml/memory/_search
{
  "query": {
    "match_all": {}
  },
  "size": 1000
}

Example request: Searching for a memory by name

POST /_plugins/_ml/memory/_search
{
  "query": {
    "term": {
      "name": {
        "value": "conversation"
      }
    }
  }
}

Example response

{
  "took": 1,
  "timed_out": false,
  "_shards": {
    "total": 1,
    "successful": 1,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": {
      "value": 3,
      "relation": "eq"
    },
    "max_score": 0.2195382,
    "hits": [
      {
        "_index": ".plugins-ml-memory-meta",
        "_id": "znCqcI0BfUsSoeNTntd7",
        "_version": 3,
        "_seq_no": 39,
        "_primary_term": 1,
        "_score": 0.2195382,
        "_source": {
          "updated_time": "2024-02-03T20:36:10.252213029Z",
          "create_time": "2024-02-03T20:30:46.395829411Z",
          "application_type": null,
          "name": "Conversation about NYC population",
          "user": "admin"
        }
      },
      {
        "_index": ".plugins-ml-memory-meta",
        "_id": "iXC4bI0BfUsSoeNTjS30",
        "_version": 4,
        "_seq_no": 11,
        "_primary_term": 1,
        "_score": 0.20763937,
        "_source": {
          "updated_time": "2024-02-03T02:59:39.862347093Z",
          "create_time": "2024-02-03T02:07:30.804554275Z",
          "application_type": null,
          "name": "Test conversation for RAG pipeline",
          "user": "admin"
        }
      },
      {
        "_index": ".plugins-ml-memory-meta",
        "_id": "gW8Aa40BfUsSoeNTvOKI",
        "_version": 4,
        "_seq_no": 6,
        "_primary_term": 1,
        "_score": 0.19754036,
        "_source": {
          "updated_time": "2024-02-02T19:01:32.121444968Z",
          "create_time": "2024-02-02T18:07:06.887061463Z",
          "application_type": null,
          "name": "Conversation for a RAG pipeline",
          "user": "admin"
        }
      }
    ]
  }
}

Response fields

The following table lists all response fields.

Field Data type Description
memory_id String The memory ID.
create_time String The time at which the memory was created.
updated_time String The time at which the memory was last updated.
name String The memory name.
user String The username of the user who created the memory.
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