Fwd: Row description Metadata information

From: Aleksei Ivanov <iv(dot)alekseii(at)gmail(dot)com>
To: "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Fwd: Row description Metadata information
Date: 2021-02-16 01:25:55
Message-ID: CAN0E21OT1GaCT7yj5m8HZd_-U5g8tAkLROjDtAwZXUXrnJNHAw@mail.gmail.com
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Not sure that previous email was sent correctly. If it was duplicated,
sorry for the inconvenience.

Hi, hackers,

I have one question related to returned information in the row description
for prepared statement.

For example Select $1 * 2 and then Bind 1.6 to it.
The returned result is correct and equal to 3.2, but type modifier in the
row description is equal to -1, which is not correct.

Does someone know where this modifier is calculated? Is this a bug or
intention behavior?

Best regards,
Aleksei Ivanov

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