How to query a key that has ":" in the dictionary

[Prabhanjali]

Summary

Suppose I have my data as below

{
    "col1" : "firstcolumn",
    "col2" : "secondcolumn",
    "col3" : {
	 "abc:text" : "environment",
	 "cde"      : "hello"
    }
}

Now if I want to filter the rows that has cde as key and value hello, I can use the below query

query{
    table(filter : {col3 : {contains : {cde : "hello"}}}){
	nodes{
	    col2,
	    col1
	}
    }
}

How to query if I want to get the rows where the key is having a colon (:) in it?
Ex: How to query if I need to get the rows that has abc:text as key and value is environment?

Additional context

[benjie]

A GraphQL Name cannot contain a : so this cannot occur.

[Prabhanjali]

But, I have a key named as cde:tag1 and its value is value1. Can't I filter based on this?

[benjie]

A key in what? Do you mean a column in your database? Or a key in a JSON object? Or...?

[Prabhanjali]

A key in JSON Object

[benjie]

We don't have any built in functionality for querying JSON fields; use makeAddPgTableConditionPlugin or similar to make your own filter however you want (or use a database function).