elasticsearch/docs/reference/enrich-processor/csv-processor.md

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CSV	https://www.elastic.co/guide/en/elasticsearch/reference/current/csv-processor.html

CSV processor [csv-processor]

Extracts fields from CSV line out of a single text field within a document. Any empty field in CSV will be skipped.

$$$csv-options$

Name	Required	Default	Description
field	yes	-	The field to extract data from
target_fields	yes	-	The array of fields to assign extracted values to
separator	no	,	Separator used in CSV, has to be single character string
quote	no	"	Quote used in CSV, has to be single character string
ignore_missing	no	false	If true and field does not exist, the processor quietly exits without modifying the document
trim	no	false	Trim whitespaces in unquoted fields
empty_value	no	-	Value used to fill empty fields, empty fields will be skipped if this is not provided. Empty field is one with no value (2 consecutive separators) or empty quotes ("")
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.

{
  "csv": {
    "field": "my_field",
    "target_fields": ["field1", "field2"]
  }
}

If the trim option is enabled then any whitespace in the beginning and in the end of each unquoted field will be trimmed. For example with configuration above, a value of A, B will result in field field2 having value {{nbsp}}B (with space at the beginning). If trim is enabled A, B will result in field field2 having value B (no whitespace). Quoted fields will be left untouched.