public override string ToString()
{
var column = Column.Replace("#", ".", StringComparison.OrdinalIgnoreCase);
var parameter = SqlDialect == Dialect.Postgres ? column : Column.Replace(".", "__", StringComparison.OrdinalIgnoreCase);
column = column.Replace("$", "", StringComparison.OrdinalIgnoreCase);
column = ColumnNameFormatter?.Invoke(column) ?? column;
parameter = ParameterFormatter?.Invoke(parameter) ?? $"@{parameter}";
return(Separator == Separator.Empty ? $"{column} {Oper.ToSqlString()} {parameter}"
: $"{column} {Oper.ToSqlString()} {parameter} {Separator.ToSqlString()}");
}