How to determine max int

On 11/11/2013 4:14 PM, Melvin Call wrote:

I could swear I read somewhere that the default integer size on 64-bit
systems running 9.1 is eight bytes, or the equivalent of a bigint. But
reading through the user guide it seems that it is indeed still just
four-bytes. Can anyone verify that for me, or point me to a way to
verify it? I see nothing in pg_settings which is where I thought to
look. Not a big deal, I just need to know for the data dictionary.

x86_64 integers are 32bit, bigints are 64bit. this is true in most
all programming environments, from C on.

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john r pierce 37N 122W
somewhere on the middle of the left coast

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On 11/11/2013 7:14 PM, Melvin Call wrote:

Good evening,

I could swear I read somewhere that the default integer size on 64-bit
systems running 9.1 is eight bytes, or the equivalent of a bigint. But
reading through the user guide it seems that it is indeed still just
four-bytes. Can anyone verify that for me, or point me to a way to
verify it? I see nothing in pg_settings which is where I thought to
look. Not a big deal, I just need to know for the data dictionary.

The documentation seems pretty clear on integer data types:

http://www.enterprisedb.com/docs/en/9.2/pg/datatype-numeric.html#DATATYPE-INT

From the documentation, the range of integer data types is not
platform-specific, other than for warning about BIGINT. Perhaps you are
remembering compiler documentation, where the default integer size
typically *is* platform-dependent?

--
Guy Rouillier

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On Mon, Nov 11, 2013 at 6:29 PM, John R Pierce <pierce@hogranch.com> wrote:

On 11/11/2013 4:14 PM, Melvin Call wrote:

I could swear I read somewhere that the default integer size on 64-bit
systems running 9.1 is eight bytes, or the equivalent of a bigint. But
reading through the user guide it seems that it is indeed still just
four-bytes. Can anyone verify that for me, or point me to a way to verify
it? I see nothing in pg_settings which is where I thought to look. Not a
big deal, I just need to know for the data dictionary.

x86_64 integers are 32bit, bigints are 64bit. this is true in most all
programming environments, from C on.

That is what I thought. I have no idea where I came up with the notion that
it was 64 bits, but I have it in a note I took a while back. I guess I
really am going crazy!

Thanks John

On Mon, Nov 11, 2013 at 6:35 PM, Guy Rouillier <guy.rouillier@gmail.com>wrote:

On 11/11/2013 7:14 PM, Melvin Call wrote:

Good evening,

I could swear I read somewhere that the default integer size on 64-bit
systems running 9.1 is eight bytes, or the equivalent of a bigint. But
reading through the user guide it seems that it is indeed still just
four-bytes. Can anyone verify that for me, or point me to a way to
verify it? I see nothing in pg_settings which is where I thought to
look. Not a big deal, I just need to know for the data dictionary.

The documentation seems pretty clear on integer data types:

http://www.enterprisedb.com/docs/en/9.2/pg/datatype-
numeric.html#DATATYPE-INT

From the documentation, the range of integer data types is not
platform-specific, other than for warning about BIGINT. Perhaps you are
remembering compiler documentation, where the default integer size
typically *is* platform-dependent?

--
Guy Rouillier

Thanks Guy. Some dumb notion that I came up with somewhere in the past. I
appreciate y'all setting me straight.

Melvin