curl --request PATCH \
  --url https://{projectHost}/collections/{collectionName} \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "indexConfigs": {
    "example-field1": {
      "type": "text",
      "analyzers": [
        "english"
      ]
    },
    "example-field2": {
      "type": "vector",
      "dimensions": 128,
      "similarity": "cosine"
    },
    "example-field3": {
      "type": "keyword"
    }
  }
}
'

{
  "projectName": "example-project-name",
  "collectionName": "example-collection-name",
  "indexConfigs": {
    "example-field1": {
      "type": "text",
      "analyzers": [
        "english"
      ]
    },
    "example-field2": {
      "type": "vector",
      "dimensions": 128,
      "similarity": "cosine"
    },
    "example-field3": {
      "type": "keyword"
    }
  },
  "numDocs": 1000,
  "collectionStatus": "ACTIVE"
}