Re: Binary tx format for an array?

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От Michael Guyver
Тема Re: Binary tx format for an array?
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Msg-id 30b57570606220116h2f216c1eue74e5cfbb41bd5bc@mail.gmail.com
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Ответ на Re: Binary tx format for an array?  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Binary tx format for an array?
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Thanks very much for your prompt help on this lads.

> sizeof(Oid) is 4 [bytes].  You can check this and other basic datatype
> sizes by looking in pg_type.

So in the following code

StringInfo    buf = (StringInfo) PG_GETARG_POINTER(0)
// ...
Oid element_type = pq_getmsgint(buf, sizeof(Oid));

are the bytes representing an int4 Oid simply 23, represented in variable buf as

[0x17][0x00][0x00][0x00]

The reason for asking is I'm under the impression there can be
differences between network byte-order and other representations.
Hopefully this isn't an inane question - apologies if it is.

Regards,

Michael

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