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Decode CSV fields

Warning

This functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.

The decode_csv_fields processor decodes fields containing records in comma-separated format (CSV). It will output the values as an array of strings.

Note

This processor only works with log inputs.

- decode_csv_fields:
    fields:
      message: decoded.csv
    separator: ","
    ignore_missing: false
    overwrite_keys: true
    trim_leading_space: false
    fail_on_error: true
Note

Elastic Agent processors execute before ingest pipelines, which means that your processor configurations cannot refer to fields that are created by ingest pipelines or Logstash. For more limitations, refer to What are some limitations of using processors?

Name Required Default Description
fields Yes A mapping from the source field containing the CSV data to the destination field to which the decoded array will be written.
separator No comma character (,) Character to use as a column separator. To use a TAB character, set this value to "\t".
ignore_missing No false Whether to ignore events that lack the source field. If false, events missing the source field will fail processing.
overwrite_keys No false Whether the target field is overwritten if it already exists. If false, processing of an event fails if the target field already exists.
trim_leading_space No false Whether extra space after the separator is trimmed from values. This works even if the separator is also a space.
fail_on_error No true Whether to fail if an error occurs. If true and an error occurs, any changes to the event are reverted, and the original event is returned. If false, processing continues even if an error occurs.