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From: desruisseaux (@desruisseaux) <[email protected]>
To: pgjdbc/pgjdbc <[email protected]>
Subject: Re: [pgjdbc/pgjdbc] issue #3685: Regression: a query does not work anymore on connection created by `PGSimpleDataSource` but still work with `DriverManager`
Date: Wed, 25 Jun 2025 11:34:43 +0000
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

> You are conflating psql and pgjdbc. They are not the same

I know that they are not the same. My argument is that:

1. The addition of a `?currentSchema=features` option in the URL is the only significant difference I could see in the comparison of the `pgjdbc` logs of the two tests posted in [above comment](https://github.com/pgjdbc/pgjdbc/issues/3685#issuecomment-3000511929).
2. That `?currentSchema=features` option is not accepted by `psql`. Error message is: _psql: erreur : paramètre de la requête URI invalide : « currentSchema »_.
3. I did not found `currentSchema` in the list of parameters accepted in the `?foo=bar` part of an URI according [PostgreSQL documentation](https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-CONNSTRING-URIS), contrarily to other parameters such as `?user` and `connect_timeout`.
4. We do observe that when the `?currentSchema` parameter is specified, PostgreSQL 16 or PostGIS do not behave correctly.
5. Therefore, I suspect that `?currentSchema` is not officially supported. Maybe it is a deprecated parameter.

Unless one of the above points is wrong, I thing that `PGSimpleDataSource.setCurrentSchema` should be deprecated.

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  Subject: Re: [pgjdbc/pgjdbc] issue #3685: Regression: a query does not work anymore on connection created by `PGSimpleDataSource` but still work with `DriverManager`
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