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From: davecramer (@davecramer) <[email protected]>
To: pgjdbc/pgjdbc <[email protected]>
Subject: Re: [pgjdbc/pgjdbc] issue #3482: When using java.sql.Timestamp for update, an exception thrown
Date: Fri, 17 Jan 2025 16:17:24 +0000
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

OK, so by default parameters are sent as text.
Neither the driver nor the server know ahead of time that 

select ? as ts is supposed to be a timestamp. 

The error message is `Hint: You will need to rewrite or cast the expression.`
so ```
 merge into test as dst using (select $1 as id, $2::timestamp as ts, $3 as amount) src on dst.id=$4 when matched then update set ts=src.ts, amount=src.amount when not matched then insert (id, ts, amount) values (src.id, src.ts, src.amount)
```
Will work

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