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 default field is updated in-place |
ignore_missing |
no | false |
If true and field does not exist or is null, 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. See Conditionally run a processor. |
ignore_failure |
no | false |
Ignore failures for the processor. See Handling pipeline failures. |
on_failure |
no | - | Handle failures for the processor. See Handling pipeline failures. |
tag |
no | - | Identifier for the processor. Useful for debugging and metrics. |
{
"lowercase": {
"field": "foo"
}
}