OpenXJsonSerDe - Amazon Data Firehose
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).


The OpenX SerDe. Used by Firehose for deserializing data, which means converting it from the JSON format in preparation for serializing it to the Parquet or ORC format. This is one of two deserializers you can choose, depending on which one offers the functionality you need. The other option is the native Hive / HCatalog JsonSerDe.



When set to true, which is the default, Firehose converts JSON keys to lowercase before deserializing them.

Type: Boolean

Required: No


Maps column names to JSON keys that aren't identical to the column names. This is useful when the JSON contains keys that are Hive keywords. For example, timestamp is a Hive keyword. If you have a JSON key named timestamp, set this parameter to {"ts": "timestamp"} to map this key to a column named ts.

Type: String to string map

Key Length Constraints: Minimum length of 1. Maximum length of 1024.

Key Pattern: ^\S+$

Value Length Constraints: Minimum length of 1. Maximum length of 1024.

Value Pattern: ^(?!\s*$).+

Required: No


When set to true, specifies that the names of the keys include dots and that you want Firehose to replace them with underscores. This is useful because Apache Hive does not allow dots in column names. For example, if the JSON contains a key whose name is "a.b", you can define the column name to be "a_b" when using this option.

The default is false.

Type: Boolean

Required: No

See Also

For more information about using this API in one of the language-specific Amazon SDKs, see the following: