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Add key transform performance note to docs (#1753)

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Ben Mills 2016-05-26 14:19:19 -06:00 committed by L. Preston Sego III
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docs/general/configuration_options.md
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@ -52,6 +52,9 @@ Each adapter has a default key transform configured:
`config.key_transform` is a global override of the adapter default. Adapters
still prefer the render option `:key_transform` over this setting.
*NOTE: Key transforms can be expensive operations. If key transforms are unnecessary for the
application, setting `config.key_transform` to `:unaltered` will provide a performance boost.*
##### default_includes
What relationships to serialize by default. Default: `'*'`, which includes one level of related
objects. See [includes](adapters.md#included) for more info.