[[search-request-fielddata-fields]]
=== Field Data Fields

Allows to return the field data representation of a field for each hit, for
example:

[source,js]
--------------------------------------------------
{
    "query" : {
        ...
    },
    "fielddata_fields" : ["test1", "test2"]
}
--------------------------------------------------

Field data fields can work on fields that are not stored.

It's important to understand that using the `fielddata_fields` parameter will
cause the terms for that field to be loaded to memory (cached), which will
result in more memory consumption.

[[search-request-fielddata-fields]]
=== Field Data Fields

Allows to return the <<fielddata,field data>> representation of a field for each hit, for
example:

[source,js]
--------------------------------------------------
{
    "query" : {
        ...
    },
    "fielddata_fields" : ["test1", "test2"]
}
--------------------------------------------------

Field data fields can work on fields that are not stored.

It's important to understand that using the `fielddata_fields` parameter will
cause the terms for that field to be loaded to memory (cached), which will
result in more memory consumption.

Add link to field data docs from field data fields
Add link to field data docs from field data fields

This commit adds a link to the field data docs from the field data
fields docs for completeness.

Closes #17672
