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Re: Get date timestamp(3) without time zone column - PGSQL 9.5 - Mailing list pgsql-general

From Sameer Kumar
Subject Re: Get date timestamp(3) without time zone column - PGSQL 9.5
Date
Msg-id CADp-Sm51d3B2oSNj5kCAA5_SiQ0HQLoMrshjfO-g2xCzJs7Saw@mail.gmail.com
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In response to Get date timestamp(3) without time zone column - PGSQL 9.5  (Patrick B <patrickbakerbr@gmail.com>)
Responses Re: Get date timestamp(3) without time zone column - PGSQL 9.5
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On Mon, Sep 5, 2016 at 10:59 AM Patrick B <patrickbakerbr@gmail.com> 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-


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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Sameer Kumar | DB Solution Architect 
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