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From: Chamath Sajeewa <[email protected]>
To: Vianello, Dan A <[email protected]>
Cc: [email protected]
Subject: Re: [EXTERNAL] Pgsql error in coalesce
Date: Mon, 27 Jul 2020 23:02:42 +0530
Message-ID: <CACpofehkYKLsr5DwvAqLjKMaLYAU9T1hJTh6D3OPS68oKynbtQ@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <CACpofejQ12OBATx9Mi1YB24bj4Y4Ey6gq0fmncPp-b3hAyRtyQ@mail.gmail.com>
	<[email protected]>

Hi,
I thought it check the data type of the specified column. Isn't it the case
here?

On Mon, 27 Jul 2020, 22:57 Vianello, Dan A, <[email protected]>
wrote:

> Your column name “column_name” is of type text. The number 255 is an
> integer.  Since those datatypes don’t match the coalesce function fails.
> If the data in “column_name” can always be cast to an integer then you can
> use
>
>
>
> Select coalesce(column_name::integer, 255);
>
>
>
> Or you can cast 255 to a text string of ‘255’ with this:
>
> Select coalesce(column_name, '255'::text);
>
>
>
>
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