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From Artem Tomyuk
Subject pg_dump fails on temp tables
Date
Msg-id CANYYVqK-oscsN8iM=xJ=QhQVYqn_rzDoPmaGEDzok-p_Avy7sQ@mail.gmail.com
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Responses Re: pg_dump fails on temp tables
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Hi. 

I am trying to do multi-threaded backup with 


pg_dump -Z 9 -j 8 -F c -F d -T "doc*" -U postgres -d foo 

but from time to time it fails with error 

pg_dump: [parallel archiver] could not obtain lock on relation "public.tt1"
This usually means that someone requested an ACCESS EXCLUSIVE lock on the table after the pg_dump parent process had gotten the initial ACCESS SHARE lock on the table.

How I can avoid this, just adding -T "tt*"?

Why pg_dump trying to dump temp tables? As i know temp tables are created and visible only in one session?

Thanks.

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