Re: interesting SQL puzzle - concatenating column with itself. - Mailing list pgsql-sql

Alvaro Herrera wrote:

> The order is not really guaranteed, though if this is a one-shot thing,
> you may get away with turning off hashed aggregates.
> 

When I read this, I assumed there was a runtime parameter I could set that was similar to ENABLE_HASHJOIN. Are you
referringto a different runtime parameter or something else entirely?
 

BTW the concatenation function you suggest works nicely except that as you noted, it concatenates in an unpredictable
order,so I'm now trying to solve that problem.
 

-Nick

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