encoded types instead of plain. This can be more efficient when materializing virtual columns, and Expressions parsed by the finished Partitioning will include dictionaries of all unique inspected values for each field.
PartitioningFactoryOptions.inferDictionary
bool inferDictionary() @property nothrowGet inferDictionary property.
Returns
When inferring a schema for partition fields, yield dictionary
void inferDictionary(bool propval) @property nothrowSet inferDictionary property.
Parameters
propval | When inferring a schema for partition fields, yield dictionary encoded types instead of plain. This can be more efficient when materializing virtual columns, and Expressions parsed by the finished Partitioning will include dictionaries of all unique inspected values for each field. |