Re: jsonpath: Inconsistency of timestamp_tz() Output

On Jul 9, 2024, at 10:07, David E. Wheeler <david(at)justatheory(dot)com> wrote:

> So perhaps I had things reversed before. Maybe it’s actually doing the right then when it converts a timestamp to a timestamptz, but not when it the input contains an offset, as in your example.

To clarify, there’s an inconsistency in the output of timestamp_tz() depending on whether the input has an offset or not. With offset:

david=# select jsonb_path_query_tz('"2024-08-15 12:34:56-05"', '$.timestamp_tz()');
jsonb_path_query_tz
-----------------------------
"2024-08-15T12:34:56-05:00"

And without:

david=# select jsonb_path_query_tz('"2024-08-15 12:34:56"', '$.timestamp_tz()');
jsonb_path_query_tz
-----------------------------
"2024-08-15T16:34:56+00:00"

I suspect the latter is correct, given that the timestamptz type appears to be an int64, presumably always in UTC. I don’t understand where the first example stores the offset.

Best,

David