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stream.data.SelectKeys.md Maven / Gradle / Ivy

SelectKeys
==========

This processor can be used to select a subset of keys from the current
data item. The result of this will be a data item that has all keys
removed except for those that have been selected by the `keys` parameter.

The `keys` parameter also allows for specifying keys with wildcards `*`
and `?`. In the following example all attributes that start with `user:`
will be selected, but not `user:gender`: