Re: support for MERGE

From: Vik Fearing <vik(at)postgresfriends(dot)org>
To: Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Pg Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: support for MERGE
Date: 2021-01-10 15:36:49
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On 1/10/21 2:44 AM, Tomas Vondra wrote:
> I admit the "WHEN AND" conditions sounds a bit cryptic - it took me a
> while to realize what this refers to. Is that a term established by SQL
> Standard, or something we invented?

The grammar gets it right but the error messages are nonsensical to me.
I would like to see all user-facing instances of "WHEN AND" be replaced
by the admittedly more verbose "WHEN [NOT] MATCHED AND".
Vik Fearing

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