On Mon, Jun 24, 2024 at 5:05 PM jian he <jian.universal...@gmail.com> wrote:
> hi. > the following two queries should return the same result? > > SELECT * FROM JSON_query (jsonb 'null', '$' returning jsonb); > SELECT * FROM JSON_value (jsonb 'null', '$' returning jsonb); > > I've tried a patch to implement it. > (i raised the issue at > > https://www.postgresql.org/message-id/CACJufxFWiCnG3Q7f0m_GdrytPbv29A5OWngCDwKVjcftwzHbTA%40mail.gmail.com > i think a new thread would be more appropriate). > > > > current json_value doc: > "Note that scalar strings returned by json_value always have their > quotes removed, equivalent to specifying OMIT QUOTES in json_query." > > i think there are two exceptions: when the returning data types are > jsonb or json. > > > Hi! I also noticed a very strange difference in behavior in these two queries, it seems to me that although it returns a string by default, for the boolean operator it is necessary to return true or false SELECT * FROM JSON_value (jsonb '1', '$ == "1"' returning jsonb); json_value ------------ (1 row) SELECT * FROM JSON_value (jsonb 'null', '$ == "1"' returning jsonb); json_value ------------ false (1 row) Best regards, Stepan Neretin.
