Re: CustomScan in a larger structure (RE: CustomScan support on readfuncs.c)

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От Robert Haas
Тема Re: CustomScan in a larger structure (RE: CustomScan support on readfuncs.c)
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Msg-id CA+TgmoahweUpE1MJbJz3zfgt42BY8SYDjB6DkNQZ7WTGk+Rypg@mail.gmail.com
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Ответ на Re: CustomScan in a larger structure (RE: CustomScan support on readfuncs.c)  (Andres Freund <andres@anarazel.de>)
Ответы Re: CustomScan in a larger structure (RE: CustomScan support on readfuncs.c)  (Kohei KaiGai <kaigai@kaigai.gr.jp>)
Список pgsql-hackers
On Fri, Feb 12, 2016 at 9:56 AM, Andres Freund <andres@anarazel.de> wrote:
> On 2016-02-10 23:26:20 -0500, Robert Haas wrote:
>> I think the part about whacking around the FDW API is a little more
>> potentially objectionable to others, so I want to hold off doing that
>> unless a few more people chime in with +1.  Perhaps we could start a
>> new thread to talk about that specific idea.  This is useful even
>> without that, though.
>
> FWIW, I can delete a couple hundred lines of code from citusdb thanks to
> this...
>
> A quick questions about what you committed:
>
>> @@ -527,10 +532,17 @@ extern PGDLLIMPORT Node *newNodeMacroHolder;
>>   */
>>  extern char *nodeToString(const void *obj);
>>
>> +struct Bitmapset;            /* not to include bitmapset.h here */
>> +struct StringInfoData;       /* not to include stringinfo.h here */
>> +extern void outToken(struct StringInfoData *str, const char *s);
>> +extern void outBitmapset(struct StringInfoData *str,
>> +                                              const struct Bitmapset *bms);
>> +
>>  /*
>>   * nodes/{readfuncs.c,read.c}
>>   */
>>  extern void *stringToNode(char *str);
>> +extern struct Bitmapset *readBitmapset(void);
>
> why exactly did you expose read/writeBitmapset(), and nothing else?
> Afaics a lot of the other read routines are also pretty necessary from
> the outside?

Because that's what KaiGai submitted and I had no reason to
second-guess it.  I'm happy to expose other stuff along similar lines
if somebody writes a patch for it.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company



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