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Elastic Docs ›Painless Scripting Language [6.4] ›Painless contexts
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Field contextedit

Use a Painless script to create a script field to return a customized value for each document in the results of a query.

Variables

params (Map, read-only)
User-defined parameters passed in as part of the query.
doc (Map, read-only)
Contains the fields of the specified document where each field is a List of values.
ctx['_source'] (Map)
Contains extracted JSON in a Map and List structure for the fields existing in a stored document.
_score (double read-only)
The original score of the specified document.

Return

Object
The customized value for each document.

API

The standard Painless API is available.

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