On 3/17/26 7:37 AM, Adrian Klaver wrote:
On 3/17/26 6:58 AM, Shaheed Haque wrote:
Hi,
I observe when using pg_dump like this:
pg_dump -h localhost -p 5432 -U dbcoreuser -Ft -f abc.tar --no-
privileges --data-only \
--exclude-table="public.(jobs|queues|results) \
--table=public.django_migrations \
--table=public.paiyroll_input \
--table=public.*_id_seq \
--verbose foo
that the dumped data contains the content of the two tables, and the
two sequences. (FWIW, the above command is actually submitted via a
Python subprocess call, so quoting should not be an issue). The
verbose output confirms this:
pg_dump: processing data for table "public.django_migrations"
pg_dump: processing data for table "public.paiyroll_input"
pg_dump: executing SEQUENCE SET django_migrations_id_seq
pg_dump: executing SEQUENCE SET paiyroll_input_id_seq
Note that the instance "foo" contains many other tables, whose
sequences I was expecting to be included. To confirm this, if I drop
the second "--table", the verbose log shows only:
pg_dump: processing data for table "public.django_migrations"
pg_dump: executing SEQUENCE SET django_migrations_id_seq
My conclusion is that - despite what I understood from the pg_dump
docs - the use of "--table=public.*id_seq" does not include all the
sequences in fo, only those named by another --table.
Did I misunderstand, or formulate the command incorrectly?
My bet is this due to a dependency of paiyroll_input_id_seq on
public.paiyroll_input.
Provide the output, in psql, of:
\d public.paiyroll_input
To demonstrate:
CREATE TABLE seq_test (
line_id integer GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
bool_fld boolean,
str_fld varchar
);
\d seq_test
Table "public.seq_test"
Column | Type | Collation | Nullable |
Default
----------+-------------------+-----------+----------+------------------------------
line_id | integer | | not null | generated always
as identity
bool_fld | boolean | | |
str_fld | character varying | | |
Indexes:
"seq_test_pkey" PRIMARY KEY, btree (line_id)
SELECT pg_get_serial_sequence('public.seq_test', 'line_id');
pg_get_serial_sequence
-----------------------------
public.seq_test_line_id_seq
pg_dump -d plant_grower_db -U db_admin -p 5482 -t seq_test --data-only
--
-- PostgreSQL database dump
--
[...]
COPY public.seq_test (line_id, bool_fld, str_fld) FROM stdin;
\.
--
-- Name: seq_test_line_id_seq; Type: SEQUENCE SET; Schema: public;
Owner: db_admin
--
SELECT pg_catalog.setval('public.seq_test_line_id_seq', 1, false);
[...]
--
-- PostgreSQL database dump complete
--
pg_dump -d plant_grower_db -U db_admin -p 5482 -t seq_test_line_id_seq
--data-only
--
-- PostgreSQL database dump
--
[...]
-- No sequence data.
[...]
--
-- PostgreSQL database dump complete
--
Thanks, Shaheed
--
Adrian Klaver
[email protected]
