Re: JSON NULL handling
Posted by: Philippe Riand
Date: January 03, 2019 07:24AM

Thanks for the workaround, but I still believe that this is a bug. The workaround ie heavyweight and does not properly handle the case when the it extracts the string value 'NULL'.
The combination of JSON_EXTRACT & JSON_UNQUOTE is actually a weird one, compared to what the other DBs are offering for handling JSON. It should feature a JSON_VALUE that returns a scalar value (see postgresql jsonb_extract_path_text, DB2 JSON_VAL or sqlserver JSON_VALUE)

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