[ https://issues.apache.org/jira/browse/IGNITE-19274 ]
Pavel Pereslegin deleted comment on IGNITE-19274:
-------------------------------------------
was (Author: xtern):
If we continue to convert {{Timestamp}} to {{LocalDateTime}}, we may have to
rework the {{Instant}} to {{Timestamp}} conversion when reading the result set.
Something like this:
{code:java}
if (cls == Instant.class) {
return Timestamp.valueOf(LocalDateTime.ofInstant((Instant) val,
ZoneId.of("UTC")));
{code}
> Sql. Jdbc client. Support TIMESTAMP WITH LOCAL TIME ZONE type
> --------------------------------------------------------------
>
> Key: IGNITE-19274
> URL: https://issues.apache.org/jira/browse/IGNITE-19274
> Project: Ignite
> Issue Type: Bug
> Components: sql
> Affects Versions: 3.0.0-beta1
> Reporter: Evgeny Stanilovsky
> Assignee: Pavel Pereslegin
> Priority: Major
> Labels: ignite-3
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The {{TIMESTAMP WITH LOCAL TIME ZONE}} data type is a variant of
> {{TIMESTAMP}} that includes a time zone offset in its value. Data stored in
> the database is normalized to the database time zone (UTC) and time zone
> offset is not stored as part of the column data. When the data is retrieved,
> it to be returned in the user's local session time zone.
> i.e:
> {noformat}
> CREATE TABLE timestamp(ts TIMESTAMP, t_tz TIMESTAMP WITH LOCAL TIME ZONE);
> SET TIME ZONE 'tz1';
> INSERT INTO timestamp VALUES ('2011-01-01 01:01:01', TIMESTAMP WITH LOCAL
> TIME ZONE '2011-01-01 01:01:01');
> SET TIME ZONE 'tz2';
> INSERT INTO timestamp VALUES ('2011-01-01 01:01:01', TIMESTAMP WITH LOCAL
> TIME ZONE '2011-01-01 01:01:01');
> ...
> select * from timestamp;{noformat}
> returned rows need to be different in case of different tz1 and tz2 offsets
> but they are equals for now. Also returned representation need to be present
> in user session time zone.
> h5. Update from 26.02.2024:
> Definition of done for this task:
> * Client time zone is passed to server (check other database implementations
> to decide how and when to pass it).
> * Data of type "TIMESTAMP With LOCAL TIME ZONE" can be written/read correctly
> using the dynamic parameter.
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