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{"pk1": "c", "pk2": "b", "content": "c-b", "sortable": 47, "sortable_with_nulls": 0.19007877450229604, "sortable_with_nulls_2": 0.9255751654990827, "text": "$null"}
{"pk1": "f", "pk2": "a", "content": "f-a", "sortable": 47, "sortable_with_nulls": null, "sortable_with_nulls_2": 0.9779444845768627, "text": "$null"}