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> ]