# FieldFormat

Specifies how to send the value of a document field to Vertica when the field has more than one value.

You can choose one of the following options:

Option | Description | Example JSON
--- | --- | ---
`CSV` | The values are sent as a string, comma-separated list. |
    {
      field : "value1,value2,value3"
    }
`Array` | The values are sent as a JSON array. |
    {
      field : ["value1","value2","value3"]
    }
`Mixed` | A single value is sent as a string, multiple values are sent as an array. |
    {
      field : ["value1","value2","value3"]
      field2 : "value"
    }

NOTE: This parameter has no effect on the document fields `DREREFERENCE`, `VERTICA_INDEXER_TIMESTAMP`, and `VERTICA_INDEXER_DELETED`. The values of these fields are always sent as strings.

Type: | String
Default: | CSV
Required: | No
Configuration Section: | Any section specified by `IndexerSectionN` or Indexing
Example: | `FieldFormat=array`
See Also: |

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