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Re: maximum digits for NUMERIC

From: Noah Misch <noah(at)leadboat(dot)com>
To: Gianni Ciolli <gianni(dot)ciolli(at)2ndquadrant(dot)it>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: maximum digits for NUMERIC
Date: 2011-03-21 00:14:21
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Lists: pgsql-hackers
On Fri, Mar 11, 2011 at 11:36:14AM +0000, Gianni Ciolli wrote:
> maybe we should change the "1000 digits" here:
> because ISTM that up to 2^17 digits are supported (which makes more
> sense than 1000).

Agreed.  The documentation is suggestive of this limit:

# CREATE TABLE n (c numeric(1001,0));
ERROR:  NUMERIC precision 1001 must be between 1 and 1000
LINE 1: CREATE TABLE n (c numeric(1001,0));

However, that's indeed just a limit of the numeric typmod representation, not
the data type itself.  An unqualified "numeric" column hits no such limit.

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