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From: Tom Lane <tgl@sss.pgh.pa.us>
To: "Howard A. Chou" <maingroup@yahoo.com>
cc: "pgsql-bugs@lists.postgresql.org" <pgsql-bugs@lists.postgresql.org>
Subject: Re: found a possible bug,
 modulus of an integer on a partition table appears to be wrong
In-reply-to: <382692025.2538273.1678041938275@mail.yahoo.com>
References: <382692025.2538273.1678041938275.ref@mail.yahoo.com>
 <382692025.2538273.1678041938275@mail.yahoo.com>
Comments: In-reply-to "Howard A. Chou" <maingroup@yahoo.com>
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"Howard A. Chou" <maingroup@yahoo.com> writes:
> The remainder of 4, 6, 8 mod 2 should be 0.=C2=A0 Instead of inserting i=
nto t1_0, all values were inserted into t1_1

You are confusing "modulus of the column value" with "modulus of
the hash of the column value".  The latter is what determines
tuple routing in a hash-partitioned table.

			regards, tom lane