Re: partitoning expert : Partitonning with specialization of one column type

Your child could be:

CREATE TABLE child-1(
patchn pcpatchn
) INHERITS (father);

From: pgsql-general-owner(at)postgresql(dot)org [mailto:pgsql-general-owner(at)postgresql(dot)org] On Behalf Of Rémi Cura
Sent: Wednesday, April 01, 2015 8:41 AM
To: PostgreSQL General
Subject: [GENERAL] partitoning expert : Partitonning with specialization of one column type

Hey, postgres 9.3 here.
for partitionning expert.
I have several table child with columns (gid serial, patch pcpatch(n))
where n may change depending on the tables, and pcpatch is a type from pgpointcloud extension
(here is the definition)
-----
CREATE TYPE pcpatch
(INPUT=pcpatch_in,
OUTPUT=pcpatch_out,
RECEIVE=-,
SEND=-,
TYPMOD_IN=pc_typmod_in,
TYPMOD_OUT=pc_typmod_out,
ANALYZE=-,
CATEGORY='U', DEFAULT='',
INTERNALLENGTH=-1, ALIGNMENT=int4, STORAGE=MAIN);
-----
The question is, how do I create an inheritance scheme?

If the father table is

CREATE TABLE father(
gid serial,
patch pcpatch
) ;
trying to put child_1, child_2 ... to inherit father raise an error

----
child table "test_child_1" has different type for column "patch"
----
So my question is, how would it be possible (if at all) to inherit of father table, while specializing the type of father table in child table?
Thanks,
Cheers,
Rémi-C

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