Re: Get date timestamp(3) without time zone column - PGSQL 9.5

[Sameer Kumar <sameer.kumar@xxxxxxxxxx>]

On Mon, Sep 5, 2016 at 10:59 AM Patrick B <patrickbakerbr@xxxxxxxxx> wrote:

Hi guys,

I got the tasks table that has the tasks_start column:

tasks_start        | timestamp(3) without time zone 

select tasks_start from tasks LIMIT 1;

tasks_start           
------------------- 
2016-08-10 00:30:00 

 I'm trying to cast the date, using this query:

SELECT cast(tasks_start as date) FROM "jobs" WHERE "tasks"."deleted" = 'f' AND "tasks"."recurrence_id" = 1 AND (Date(tasks_start) in ('2016-08-10')

You might want to share the version of PostgreSQL you are using. 

You might want to try date_trunc and AT TIMEZONE function/operators-

https://www.postgresql.org/docs/9.4/static/functions-datetime.html#FUNCTIONS-DATETIME-TRUNC

SELECT date_trunc('day', tasks_start at TIME ZONE 'EST')

Note: I have not tried this statement

 

Is this something you are going to use often? If that is the case then consider to re-model your query. The moment you use an _expression_ on a column it would not use a normal BTree index.

but it doesn't work.. I get 0 rows... what am I doing wrong?

cheers

Patrick 

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Best Regards

Sameer Kumar | DB Solution Architect 

ASHNIK PTE. LTD.

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