Re: some questions in psqlodbc

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От Craig Ringer
Тема Re: some questions in psqlodbc
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Msg-id 546AE876.6000503@2ndquadrant.com
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Ответ на some questions in psqlodbc  (蔡珂珂 <caike85@126.com>)
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Hi

What's the underlying problem you are trying to solve?

What error do you get that is making you investigate this area?

What does not work the way you expect?

It isn't clear what you're trying to do.

On 11/15/2014 02:47 PM, 蔡珂珂 wrote:
> Dear somebody:
>     hello, I am eric from beijing. And I am a fresh man in psqlodbc.
> When I am studing at the psqlodbc source code, I have some questions.
>     In file named "odbcapi.c", the function named "SC_opencheck" are
> called almost everywhere, and in the function, why return some error
> when "the cursor is open"? And using git, I saw that change was beening
> done in 2004-01-06 17:58:22. Oh how old is it, but I can't understande
> why we can't use a cursor when it is opened or created by some other?
>     And  in function "PGAPI_ExtendedFetch" in another file "results.c",
> which is called by SQLFetch, why seting cursor to start using function
> "SC_inc_rowset_start" or function "SC_set_rowset_start"?
> Because we will maybe get rowdata next or not?
>     Could you understand me? My englist is poor, and I am afraid that I
> couldn't descript my questions clearly. I am sorry to apologize.
>
> Best wishes!
>
>                     Eric
>
>                     From Beijing 2014-11-15
>
>


--
 Craig Ringer                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services


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