After further investigation, I found user will run into same issue when querying a meta data with boolean type, such as "is_public" of image. So we need a better way to determine the value type of meta data to get correct result from DB.
After further investigation, I found user will run into same issue when querying a meta data with boolean type, such as "is_public" of image. So we need a better way to determine the value type of meta data to get correct result from DB.