Re: Problems with question marks in operators (JDBC, ECPG, ...)
| От | David G. Johnston |
|---|---|
| Тема | Re: Problems with question marks in operators (JDBC, ECPG, ...) |
| Дата | |
| Msg-id | CAKFQuwag-AAxXVcCatpkYjegwpsYAkeFKL_spuXsfs_8rWjABQ@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Problems with question marks in operators (JDBC, ECPG, ...) ("Greg Sabino Mullane" <greg@turnstep.com>) |
| Ответы |
Re: Problems with question marks in operators (JDBC, ECPG, ...)
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| Список | pgsql-hackers |
Dave Cramer wrote:
> Well our solution was to use ?? but that does mean we have to do some
> extra parsing which in a perfect world wouldn't be necessary.
That's not a good solution as '??' is a perfectly valid operator. ISTR
seeing it used somewhere in the wild, but I could be wrong.
It which case you would write (I think, not tested and not part of the test suite that I can see...):
a ???? b ...
There was some discussion about ?? vs \?:
I did find some alternatives discussed a couple of years back, like {postgres qm} and <operator("?")>; the later simply being to allow the operator to be quoted inside "operator()"
The commit that added "??":
David J.
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