On Thursday, June 21, 2018 at 10:41:52 AM UTC-7, lkfken wrote:
>
> Hi Jeremy,
>
> Sorry about that. I misunderstood on what you need.
>
> Here is the SQL statement
> SELECT NAME,
> dates,
> source
> FROM (SELECT NAME,
> a_date,
> b_date,
> c_date
> FROM test
> WHERE NAME = 'TOM') AS p1
> UNPIVOT ( dates
> FOR source IN (a_date,
> b_date,
> c_date) ) AS p2;
>
> so what I want is to have "p1" come from Sequel::Dataset (ie: Test.toms,
> Test.joes, etc) instead of hard code it into this SQL statement.
>
This should work, and produce the same SQL (modulo identifier quoting):
DB.select(:NAME, :dates, :source).
from(DB[:test].select(:NAME, :a_date, :b_date,
:c_date).where(:name=>'TOM').as(:p1),
Sequel.lit("UNPIVOT (dates FOR source IN (a_date, b_date,
c_date))").as(:p2))
Thanks,
Jeremy
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