Re: ESQL/C no indicator variables ./. error -213

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Matthias Apitz <guru(at)unixarea(dot)de>
Cc: pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: ESQL/C no indicator variables ./. error -213
Date: 2020-06-18 15:21:02
Message-ID: 1550181.1592493662@sss.pgh.pa.us
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I wrote:
> Hmm. Trying this here, I get
> ...

Oh, scratch that, I'd failed to duplicate the test case. (I had an
empty string, not NULL, as the value of the tstchar25 column.)

I concur with Laurenz's diagnosis that you need to use an indicator
variable if you want to retrieve a NULL.

regards, tom lane

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