OpenSearch/docs/reference/ingest/processors/convert.asciidoc

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[[convert-processor]]
=== Convert processor
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<titleabbrev>Convert</titleabbrev>
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Converts a field in the currently ingested document to a different type, such as converting a string to an integer.
If the field value is an array, all members will be converted.
The supported types include: `integer`, `long`, `float`, `double`, `string`, `boolean`, and `auto`.
Specifying `boolean` will set the field to true if its string value is equal to `true` (ignore case), to
false if its string value is equal to `false` (ignore case), or it will throw an exception otherwise.
Specifying `auto` will attempt to convert the string-valued `field` into the closest non-string type.
For example, a field whose value is `"true"` will be converted to its respective boolean type: `true`. Do note
that float takes precedence of double in `auto`. A value of `"242.15"` will "automatically" be converted to
`242.15` of type `float`. If a provided field cannot be appropriately converted, the Convert Processor will
still process successfully and leave the field value as-is. In such a case, `target_field` will
still be updated with the unconverted field value.
[[convert-options]]
.Convert Options
[options="header"]
|======
| Name | Required | Default | Description
| `field` | yes | - | The field whose value is to be converted
| `target_field` | no | `field` | The field to assign the converted value to, by default `field` is updated in-place
| `type` | yes | - | The type to convert the existing value to
| `ignore_missing` | no | `false` | If `true` and `field` does not exist or is `null`, the processor quietly exits without modifying the document
include::common-options.asciidoc[]
|======
[source,js]
--------------------------------------------------
PUT _ingest/pipeline/my-pipeline-id
{
"description": "converts the content of the id field to an integer",
"processors" : [
{
"convert" : {
"field" : "id",
"type": "integer"
}
}
]
}
--------------------------------------------------
// NOTCONSOLE