Hi,
It's possible - I used unofficial BNF graph from internet.
so problem is on my side.
thank you
Pavel
2009/2/17 Peter Eisentraut <pete...@gmx.net>:
> Pavel Stehule wrote:
>>
>> I found BNF for SQL 2003 and I found there some small difference.
>> Standard use keyword ESCAPE, but PostgreSQL use keybord UESCAPE.
>>
>> Anybody knows reason?
>>
>> <Unicode character string literal> ::=
>> [ <introducer> <character set specification> ]
>> U <ampersand> <quote> [ <Unicode representation> ... ] <quote>
>> [ { <separator> <quote> [ <Unicode representation> ... ] <quote>
>> }... ]
>> [ ESCAPE <escape character> ]
>
> My copy has
>
> <Unicode character string literal> ::=
> [ <introducer><character set specification> ]
> U<ampersand><quote> [ <Unicode representation>... ] <quote>
> [ { <separator> <quote> [ <Unicode representation>... ] <quote> }... ]
> <Unicode escape specifier>
>
> <Unicode escape specifier> ::= [ UESCAPE <quote><Unicode escape
> character><quote> ]
>
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