Re: Troubles dumping a very large table. - Mailing list pgsql-performance

From Tom Lane
Subject Re: Troubles dumping a very large table.
Date
Msg-id 12778.1230140996@sss.pgh.pa.us
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In response to Troubles dumping a very large table.  (Ted Allen <tallen@blackducksoftware.com>)
Responses Re: Troubles dumping a very large table.  (Ted Allen <tallen@blackducksoftware.com>)
List pgsql-performance
Ted Allen <tallen@blackducksoftware.com> writes:
> during the upgrade.  The trouble is, when I dump the largest table,
> which is 1.1 Tb with indexes, I keep getting the following error at the
> same point in the dump.

> pg_dump: SQL command failed
> pg_dump: Error message from server: ERROR:  invalid string enlargement
> request size 1
> pg_dump: The command was: COPY public.large_table (id, data) TO stdout;

> As you can see, the table is two columns, one column is an integer, and
> the other is bytea.   Each cell in the data column can be as large as
> 600mb (we had bigger rows as well but we thought they were the source of
> the trouble and moved them elsewhere to be dealt with separately.)

600mb measured how?  I have a feeling the problem is that the value
exceeds 1Gb when converted to text form...

            regards, tom lane

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