>>>

SELECT 1 + ('myName') FROM TT

>>
>>Have I written a + ?
>>
>
>That's exactly my point.

Now i see your point.

The parser it wants protect to me from my possible errors.
If I put something that joins the two expressions, then the second one is not more a name than column.
First, you are optimistic.

Second, Sin that AS is optional, and without the lack operator the command syntactically is corrected.

With your rule,nearly all the grammar becomes ambiguous.
A simple example:

CREATE CURSOR TT (AA I)

*I could it are forgotten about +
SELECT AA    AA FROM TT
*
SELECT AA +  AA FROM TT