SeparatorCharacter
The character or characters used to denote hierarchy.
データ型
string
デフォルト値
"."
解説
In order to flatten out hierarchical structures, the 本製品 needs some specifier that states the path to a column through the hierarchy. If this value is "." and a column comes back with the name address.city, this indicates that there is a mapped attribute with a child called city. If your data has columns that already use a single period within the attribute name, set the SeparatorCharacter to a different character or characters.