Ambiguous statement about order
От | PG Doc comments form |
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Тема | Ambiguous statement about order |
Дата | |
Msg-id | 169471034724.2433969.10991418756730188687@wrigleys.postgresql.org обсуждение исходный текст |
Ответы |
Ambiguous statement about order
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Список | pgsql-docs |
The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/15/datatype-json.html Description: The following statement in the page doesn't speak about arrays which created some confusion with developers in our company: "By contrast, jsonb does not preserve white space, does not preserve the order of object keys, and does not keep duplicate object keys. If duplicate keys are specified in the input, only the last value is kept." The reason that caused confusion was some developers argued object keys include arrays. What added to the ambiguity is another line (a footnote): "For this purpose, the term “value” includes array elements, though JSON terminology sometimes considers array elements distinct from values within objects." I understand that it is only related to containment test. But it was causing confusion with others. I observed that arrays inside JSONB preserved order of insertion. An explicit line about whether the array order will be preserved or not would be helpful.
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