+ If flatten nested option is set it will flatten nested object as root level property. In normal case nested object will treat as JSON column.
+
+
+ For example the following input: {
+ "prop1": {
+ "prop2": "value"
+ },
+ "prop3": "value",
+ "prop4": 1
+ } will treat as:
+ {
+ "prop1_prop2": "value",
+ "prop3": "value",
+ "prop4": 1
+ }
+