Hi All,

Greetings for the day.

Recently, I have installed the PostgreSQL 9.3 on my local ubuntu machine
for testing the new features in PG 9.3. I have created few test tables as
well. Now, I am trying to take the dump from the 9.3 binaries and getting
the below error.

postgres@test-ubuntu:/opt/PostgreSQL/9.3/bin$ ./pg_dump -f /tmp/pg_9.3.sql
-s -d postgres -p 5434
Password:
*cannot duplicate null pointer (internal error)*

postgres@test-ubuntu:/opt/PostgreSQL/9.3/bin$ ./psql -p 5434 -U postgres
postgres
Password for user postgres:
psql.bin (9.3beta1)
Type "help" for help.

postgres=# SELECT VERSION();

version
-----------------------------------------------------------------------------------------------------------
 PostgreSQL 9.3beta1 on i686-pc-linux-gnu, compiled by gcc (GCC) 4.1.2
20080704 (Red Hat 4.1.2-52), 32-bit
(1 row)

Then, I have tried to take the dump with pg_dumpall, and the result as
below.

postgres@test-ubuntu:/opt/PostgreSQL/9.3/bin$ ./pg_dumpall -f
/tmp/pg_9.3.sql -p 5434
Password:
Password:
*cannot duplicate null pointer (internal error)*
pg_dumpall: pg_dump failed on database "postgres", exiting
postgres@test-ubuntu:/opt/PostgreSQL/9.3/bin$

Below are the log entries.
==================
2013-06-25 18:24:05 IST LOG:  duration: 0.017 ms  statement: SET
search_path = public, pg_catalog
2013-06-25 18:24:05 IST LOG:  duration: 0.305 ms  statement: SELECT
sequence_name, start_value, increment_by, CASE WHEN increment_by > 0 AND
max_value = 9223372036854775807 THEN NULL      WHEN increment_by < 0 AND
max_value = -1 THEN NULL      ELSE max_value END AS max_value, CASE WHEN
increment_by > 0 AND min_value = 1 THEN NULL      WHEN increment_by < 0 AND
min_value = -9223372036854775807 THEN NULL      ELSE min_value END AS
min_value, cache_value, is_cycled FROM seq
2013-06-25 18:24:05 IST LOG:  duration: 0.117 ms  statement: SELECT
attname, attacl FROM pg_catalog.pg_attribute WHERE attrelid = '16438' AND
NOT attisdropped AND attacl IS NOT NULL ORDER BY attnum
2013-06-25 18:24:05 IST LOG:  duration: 0.018 ms  statement: SET
search_path = public, pg_catalog
2013-06-25 18:24:05 IST LOG:  duration: 0.075 ms  statement: SELECT
last_value, is_called FROM seq
2013-06-25 18:24:05 IST LOG:  unexpected EOF on client connection with an
open transaction
2013-06-25 18:24:05 IST DEBUG:  unexpected EOF on client connection
2013-06-25 18:24:14 IST DEBUG:  autovacuum: processing database "postgres"

I would like to request you to share your inputs on this error. Is this a
BUG in 9.3 pg_dump binary.

Thanks in advance.

Regards,
Dinesh
manojadinesh.blogspot.com

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