customFieldLabels varchar[][] := '{ {"a","b", NULL},
{"a","b", "NULL"}
}'::varchar[][];
是string[][],所以{"a", "b"}是用了双引号的,当然也可以都不用双引号,但是不用的话NULL值就不好处理,字符串"NULL"和NULL值
标签:body,do,varchar,postgres,双引号,NULL From: https://www.cnblogs.com/woyujiezhen/p/17630441.html