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Re: IN Operator query

From: Michael Swierczek <mike(dot)swierczek(at)gmail(dot)com>
To: DrYSG <ygutfreund(at)draper(dot)com>
Cc: pgsql-novice(at)postgresql(dot)org
Subject: Re: IN Operator query
Date: 2012-07-05 14:48:07
Message-ID: (view raw or whole thread)
Lists: pgsql-novice
On Thu, Jul 5, 2012 at 10:31 AM, DrYSG <ygutfreund(at)draper(dot)com> wrote:
> I made a naive and stupid assumption that I could pass in a TEXT parameter to
> a plpsql Stored Procedure, and use that value in a IN SQL operation.
> That is
> My naïve hope was that if iFILTER was set to: "CADRG, DTED1, DTED2, SRTF"
> (cat.type in (iFilter)) would expand to:
> (cat.type in (CADRG, DTED1, DTED2, SRTF))
> But that is not working.

I believe using the PostgreSQL array type might help,

Instead of declaring your iFilter parameter as TEXT, declare it as ARRAY.
Then instead of 'CADRG, DTED1, DTED2, SRTF' you would put the input
parameter as '{"CADRG", "DTED1", "DTED2", "SRTF"}'

And then change cat.type in (iFilter) to cat.type = ANY (iFilter)

Good luck.
-Mike Swierczek

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