public override IEnumerable<string> GetParameterNames(string query)
{
var paramNames = new List<string>();
var subs = new ParameterSubstitution()
{
ParameterAccessListener = (n) => paramNames.Add(n)
};
subs.Substitute(query, _conn.AmlContext.LocalizationContext);
return paramNames.Distinct().OrderBy(n => n);
}