json_serialization_enable - Amazon Redshift


Values (default in bold)

false, true


A session configuration that modifies the JSON serialization behavior of ORC, JSON, Ion, and Parquet formatted data. If json_serialization_enable is true, all top-level collections are automatically serialized to JSON and returned as VARCHAR(65535). Noncomplex columns are not affected or serialized. Because collection columns are serialized as VARCHAR(65535), their nested subfields can no longer be accessed directly as part of the query syntax (that is, in the filter clause). If json_serialization_enable is false, top-level collections are not serialized to JSON. For more information about nested JSON serialization, see Serializing complex nested JSON.