From: Tom Lane <tgl@sss.pgh.pa.us>
To: arthur.mcgibbon@gmail.com
Cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #17052: Incorrect params inferred on PREPARE (part 2)
Date: Tue, 08 Jun 2021 12:39:31 -0400
Message-ID: <1119504.1623170371@sss.pgh.pa.us> (raw)
In-Reply-To: <17052-0bb053c08bb80fb6@postgresql.org>
References: <17052-0bb053c08bb80fb6@postgresql.org>
PG Bug reporting form <noreply@postgresql.org> writes:
> SET timestampCol = $1 + interval '1 minute';
> ...results in an error...
> ERROR: column "timestampcol" is of type timestamp without time zone but
> expression is of type interval
> LINE 4: set timestampCol = $1 + interval '1 minute';
> ^
As in your other report, the context in which the parameter type is
guessed is just the immediate context of the plus-operator expression.
The relevant rule there is "guess that an unknown input is of the same
type as the other input", so we resolve the operator as interval + interval.
regards, tom lane
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To: pgsql-bugs@postgresql.org
Cc: tgl@sss.pgh.pa.us, arthur.mcgibbon@gmail.com, pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #17052: Incorrect params inferred on PREPARE (part 2)
In-Reply-To: <1119504.1623170371@sss.pgh.pa.us>
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