Thanks for your solution werners. Yes,we can able to rename the column as you suggested. But the problem here is the value of the column is also a json (Array of struct).

For an instance;

"hydra:mapping" - is a column which has the value called "hydra:value". Here, we have to rename the "hydra:value" as "hydra_value".

"hydra:mapping": [

{

"hydra:value": "zzzzz"

"@type": "xx",

"variable": "yy[before]",

"property": "yy",

"required": false

},