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Update docs/en/sql-reference/statements/select/order-by.md

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Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com>
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docs/en/sql-reference/statements/select/order-by.md
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@ -6,7 +6,7 @@ toc_title: ORDER BY
The `ORDER BY` clause contains a list of expressions, which can each be attributed with `DESC` (descending) or `ASC` (ascending) modifier which determine the sorting direction. If the direction is not specified, `ASC` is assumed, so it’s usually omitted. The sorting direction applies to a single expression, not to the entire list. Example: `ORDER BY Visits DESC, SearchPhrase`.
If you want to sort by column numbers instead of column names, set `enable_positional_arguments = 1`.
If you want to sort by column numbers instead of column names, enable the setting [enable_positional_arguments](../../../operations/settings/settings.md#enable-positional-arguments).
Rows that have identical values for the list of sorting expressions are output in an arbitrary order, which can also be non-deterministic (different each time).
If the ORDER BY clause is omitted, the order of the rows is also undefined, and may be non-deterministic as well.