Re: How can I see IDENTITY columns?

From: Rob Richardson <interrobang(at)yahoo(dot)com>
To: Dave Cramer <davecramer(at)gmail(dot)com>
Cc: "pgadmin-support(at)lists(dot)postgresql(dot)org" <pgadmin-support(at)lists(dot)postgresql(dot)org>
Subject: Re: How can I see IDENTITY columns?
Date: 2018-08-08 19:52:27
Message-ID: 567957550.47899.1533757947058@mail.yahoo.com
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I have now downloaded pgAdmin 4 v3.1.  It has the same problem.I run this command:
    CREATE TABLE public.identity_sample    (        identity_sample_key bigint NOT NULL GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY    )     WITH (        OIDS = FALSE    )
Then, I run
    select attrelid, attname, attidentity from pg_attribute where attname = 'identity_sample_key'
and get two records, one of which has an attidentity column that contains 'd'.  The other record's attidentity column is null.  
Then, in pgAdmin, I refresh the schema and select the identity_sample table.  In the SQL tab, I see this:
    -- DROP TABLE public.identity_sample;    CREATE TABLE public.identity_sample    (        identity_sample_key bigint NOT NULL,        CONSTRAINT identity_sample_pkey PRIMARY KEY (identity_sample_key)    )    WITH (        OIDS = FALSE    )    TABLESPACE pg_default;
I copy that into a new SQL window, uncomment the DROP TABLE line, and execute it.  Then, I repeat the select query on pg_attribute.  Again, I get two records, but this time the attidentity column is null for both records.

On Wednesday, August 8, 2018, 2:39:00 PM EDT, Dave Cramer <davecramer(at)gmail(dot)com> wrote:

The attribute table now has an attidentity column.  https://www.postgresql.org/docs/10/static/catalog-pg-attribute.html
Curious why are you using with oid's 
Dave Cramer
On 8 August 2018 at 14:16, Rob Richardson <interrobang(at)yahoo(dot)com> wrote:

I just learned about IDENTITY columns in PostgreSQL 10. I am working on upgrading a database for an upcoming major revision of my company's software package, and I want to make all of the columns defined as "serial" or "bigserial" IDENTITY columns. I found a nice web page with a function that will do that. The problem I am running into is that I can't see IDENTITY columns in pgAdmin. I've tried both in pgAdmin 4 and in BigSQL's version as shipped with its implementation of PostgreSQL 10.3. After running the function, pgAdmin shows me the following CREATE script for my table:
CREATE TABLE public.alarm_comments
(
key bigint NOT NULL,
alarm_key smallint,
alarm_comment character varying(256) COLLATE pg_catalog."default",
updated_by character varying(16) COLLATE pg_catalog."default",
updated_date timestamp with time zone DEFAULT ('now'::text)::timestamp(6) with time zone,
CONSTRAINT alarm_comments_pkey PRIMARY KEY (key)
)
WITH (
OIDS = TRUE
)
TABLESPACE pg_default;

ALTER TABLE public.alarm_comments
OWNER to postgres;

psql, on the other hand, shows me this:
Stripco for Conversion=# \d alarm_comments
Table "public.alarm_comments"
Column | Type | Collation | Nullable |
Default
---------------+-------------- ------------+-----------+----- -----+--------------
------------------------------
key | bigint | | not null | generated by
default as identity
alarm_key | smallint | | |
alarm_comment | character varying(256) | | |
updated_by | character varying(16) | | |
updated_date | timestamp with time zone | | | ('now'::text)
::timestamp(6) with time zone
Indexes:
"alarm_comments_pkey" PRIMARY KEY, btree (key)

I need to be able to see the IDENTITY in pgAdmin, since that's what we use for all of our database administration. If I can't see that a column is an IDENTITY column, then I may not be able to use IDENTITY columns at all.

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