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Lowercase processor
Converts a string to its lowercase equivalent. If the field is an array of strings, all members of the array will be converted.
| Name | Required | Default | Description |
|---|---|---|---|
field | yes | - | The field to make lowercase |
target_field | no | field | The field to assign the converted value to, by defaultfield is updated in-place |
ignore_missing | no | false | Iftrue andfield does not exist or isnull, the processor quietly exits without modifying the document |
description | no | - | Description of the processor. Useful for describing the purpose of the processor or its configuration. |
if | no | - | Conditionally execute the processor. SeeConditionally run a processor. |
ignore_failure | no | false | Ignore failures for the processor. SeeHandling pipeline failures. |
on_failure | no | - | Handle failures for the processor. SeeHandling pipeline failures. |
tag | no | - | Identifier for the processor. Useful for debugging and metrics. |
{ "lowercase": { "field": "foo" }}