Re: Allow disabling folding of unquoted identifiers to lowercase
| От | John McKown |
|---|---|
| Тема | Re: Allow disabling folding of unquoted identifiers to lowercase |
| Дата | |
| Msg-id | CAAJSdjjW=1bZoifUpD1kY0i8AO6AskMa88UizyZnmNUmGm+PwA@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Allow disabling folding of unquoted identifiers to lowercase (John R Pierce <pierce@hogranch.com>) |
| Список | pgsql-general |
On 4/29/2016 12:56 PM, John McKown wrote:I suspect this would be painful for the parser, unless you also enforced that all SQL keywords were in a specific case (all lower would be the minimal impact to the code). otherwise the parser would have to lower() every token to check to see if its a keyword, but if not, revert it to its original case.
Why? PostgreSQL is written in C. So use strncasecmp() instead of strncmp() or strcasecmp() instead of strcmp() to test for a token.
are those the APIs the parser uses?
Ah. Good point. I ASSuMEd that what any C language program would use. IIRC, PostgreSQL uses Bison and Flex to generate the parsing grammars, and I don't know what those products output.
-- john r pierce, recycling bits in santa cruz
The unfacts, did we have them, are too imprecisely few to warrant our certitude.
Maranatha! <><
John McKown
John McKown
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