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add primary key doesn't block?

From: Jaime Casanova <jcasanov(at)systemguards(dot)com(dot)ec>
To: pgsql-bugs(at)postgresql(dot)org
Subject: add primary key doesn't block?
Date: 2010-01-21 17:38:56
Message-ID: 3073cc9b1001210938x5df093c8o10b3ec3057be4ae2@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-bugs
Hi,

I'm testing the migration procedure for a client, we want to migrate
from 8.3.6 to 8.4

When we perform a test migration of the data we found some errors on
the logs, one of them is this one:

"""
mic=# ALTER TABLE tcom_invitacion ADD primary key (id_invitacion);
NOTICE:  ALTER TABLE / ADD PRIMARY KEY will create implicit index
"tcom_invitacion_pkey" for table "tcom_invitacion"
ERROR:  concurrent insert in progress
"""

actually, no indexes were created on this table...
and when i tried to add the PK manually after migration i get this
same error (not always, it seems this time the index is being created
but this time i did it inside a transaction)...

doesn't the index creation of the index block the table so, that
message should not appear?

-- 
Atentamente,
Jaime Casanova
Soporte y capacitación de PostgreSQL
Asesoría y desarrollo de sistemas
Guayaquil - Ecuador
Cel. +59387171157

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Next:From: Tom LaneDate: 2010-01-21 17:45:14
Subject: Re: add primary key doesn't block?
Previous:From: Milen A. RadevDate: 2010-01-21 17:17:39
Subject: Re: BUG #5290: Simple loop with insert into and check to avoid duplicate values fails

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