Re: array_agg and libpq(xx)

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От Grzegorz Jaśkiewicz
Тема Re: array_agg and libpq(xx)
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Msg-id 2f4958ff0903191528i46ad4bcld6ae422e2a6b2f6d@mail.gmail.com
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Ответ на Re: array_agg and libpq(xx)  (John R Pierce <pierce@hogranch.com>)
Список pgsql-general
2009/3/19 John R Pierce <pierce@hogranch.com>:
>   pgResult = PQexec(pgConn, "select array['123','456','abc','def'];");
>   pgarray = PQgetvalue(pgResult,0,0);
>
> will return a pointer to the ARRAY in postgres format as defined by the
> typsend/recieve internal functions for the ARRAY type.   you would need to
> walk this and copy the strings comprising the array to your own managed
> storage (malloc, or whatever) prior to calling PQclear(pgResult).   I'm
> trying to find the docs on what the typsend format for ARRAY looks like and
> failing.

Clearly looking like libpqq(xx) are missing that functionality built
in to protocol/api...



--
GJ

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