Hello there,
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I was trying to do a live db archive using the following steps:
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1. Open a connection to the database;
2. With the connection, do the following:
BEGIN;
SET transaction ISOLATION level SERIALIZABLE;
3. Execute the following from the Linux shell:
pg_dump dbname | gzip -9 > dbname-archive.gz
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4. With the same connection, do the following:
truncate table1, table2,...;
end;
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Well, the tables are truncated all right, but the db dump file is
empty!!!
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What went wrong with my logic? What should be the correct procedure?
Thank you!
Feng
