Re: help with bison
От | Thomas Lockhart |
---|---|
Тема | Re: help with bison |
Дата | |
Msg-id | 3CB670B0.6E570FBE@fourpalms.org обсуждение исходный текст |
Ответ на | help with bison (Neil Conway <nconway@klamath.dyndns.org>) |
Список | pgsql-hackers |
> The other day there was a discussion around the fact that X'ffff' will > get converted into an integer constant... > ... while SQL99 says that this syntax *should* be used to specify a > "binary string". It looks like the hex-to-integer magic actually occurs > in the lexer, and then the integer value of 65535 is passed to the > parser as an ICONST. I'm wondering if changing the lexer to make this a > conversion to a properly escaped bytea input string, and passing it to > the parser as a string constant would speed things up? What else is described as a "binary string" in the spec? I would have guessed that this would map to a bit field type (and maybe even had looked it up at one time). Is B'00010001' also described as a "binary string" also, or is it more explicitly tied to bit fields? - Thomas
В списке pgsql-hackers по дате отправления: