Function duckdb_prepare 

pub unsafe extern "C" fn duckdb_prepare(
    connection: duckdb_connection,
    query: *const c_char,
    out_prepared_statement: *mut duckdb_prepared_statement,
) -> duckdb_state

Create a prepared statement object from a query.

Note that after calling duckdb_prepare, the prepared statement should always be destroyed using duckdb_destroy_prepare, even if the prepare fails.

If the prepare fails, duckdb_prepare_error can be called to obtain the reason why the prepare failed.

@param connection The connection object @param query The SQL query to prepare @param out_prepared_statement The resulting prepared statement object @return DuckDBSuccess on success or DuckDBError on failure.