| From: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> |
|---|---|
| To: | Ken Tanzer <ken(dot)tanzer(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Sebastien Flaesch <sebastien(dot)flaesch(at)4js(dot)com>, pgsql-general <pgsql-general(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Intervals and ISO 8601 duration |
| Date: | 2023-01-13 23:03:39 |
| Message-ID: | 13f80fd5-6baf-e272-54c7-e72e32280643@aklaver.com |
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| Thread: | |
| Lists: | pgsql-general |
On 1/13/23 14:51, Ken Tanzer wrote:
> WITH inters AS (
> SELECT
> '1 day 2 hours'::interval AS i1,
> '26 hours'::interval AS i2
> )
> SELECT
> *,
> to_char(i1,'HH24:MM:SS') AS i1_char,
> to_char(i2,'HH24:MM:SS') AS i2_char,
> i1=i2 AS "Equal?"
> FROM inters;
WITH inters AS (
SELECT
'1 day 2 hours'::interval AS i1,
'26 hours'::interval AS i2,
justify_interval('1 day 2 hours'::interval) AS ij1,
justify_interval('26 hours'::interval) AS ij2
)
SELECT
*,
to_char(justify_interval(i1),'HH24:MM:SS') AS i1_char,
to_char(justify_interval(i2),'HH24:MM:SS') AS i2_char,
i1=i2 AS "Equal?"
i1 | i2 | ij1 | ij2 | i1_char
| i2_char | Equal?
----------------+----------+----------------+----------------+----------+----------+--------
1 day 02:00:00 | 26:00:00 | 1 day 02:00:00 | 1 day 02:00:00 | 02:00:00
| 02:00:00 | t
--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com
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