JSON Failed to import

Hi! Can someone help me ? Im trying to upload a CSV file with json data, but Im receiving an error. Does anybody has an idea how to solve this? Thks in advance mclient -s"COPY 1 RECORDS INTO traf.jsontbl FROM STDIN USING DELIMITERS '|','\n','\"' NULL AS 'null'" - < j.csv *The data on j.csv is:* 301|"{\"data\":[{\"cdr_dialnumber\":\"6596871820\"}]}" *TABLE traf.xx* sql>\d jsontbl CREATE TABLE "traf"."jsontbl" ( "a" INTEGER, "b" JSON );