Andrew Dunstan <[EMAIL PROTECTED]> writes:
> Tom Lane wrote:
>> ... But how about
>> 42$foo$
>> This is a syntax error in 7.4, and we propose to redefine it as an
>> integer literal '42' followed by a dollar-quote start symbol.

> The test should not succeed anywhere in the string '42$foo$'.

No, it won't.  The problem is that it should, because the backend will
see that as '42' followed by a $foo$ quote start.

> Interacting with lexer states would probably be ... unpleasant. Matching 
> a stream oriented lexer with a line oriented CLI would be messy I suspect.

I think it would not be that bad.  We'd have to run the lexer on the
command input buffer and see what state it terminates in.

                        regards, tom lane

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