Parquet write fails with DuckDB.dll 0.2.8

Thanks for fixing the previous issue so quick. I have tried to write a parquet file and it throws this error: Catalog Error: Copy Function with name parquet does not exist! Did you mean “csv”?

It works on the CLI duckdb.exe, I haven’t found any doc stating that the C++ API does not support Parquet, so I don’t know if the issue is about your bindings or the Dll API itself.

using var conn = new DuckDBConnection("Data Source=:memory:");
try
{
    conn.Open();
    var command = conn.CreateCommand();

    command.CommandText = "CREATE TABLE integers(foo INTEGER, bar INTEGER);";
    var executeNonQuery = command.ExecuteNonQuery();

    command.CommandText = "INSERT INTO integers VALUES (3, 4), (5, 6), (7, 8);";
    executeNonQuery = command.ExecuteNonQuery();

    command.CommandText = "SELECT foo, bar FROM integers";
    var reader = command.ExecuteReader();

    command.CommandText = "COPY (SELECT * FROM integers) TO 'result-snappy.parquet' (FORMAT 'parquet');";
    executeNonQuery = command.ExecuteNonQuery();
}
catch (Exception ex)
{
    Console.WriteLine(ex.Message);
}

Thanks for your effort bringing DuckDB to .NET!

[mmauri]

Great news!! Thanks Sartorial, for your help on the duckdb repo!

[SartorialOffense]

Happy to help! I need it for a project I am working on right now.

On Sun, Nov 14, 2021 at 1:43 PM Marc Mauri @.***> wrote:

Great news!! Thanks Sartorial, for your help on the duckdb repo!

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