Hi,
We are doing an oracle to postgres migration(5 TB+ data). We are encoding
and decoding BLOB data after migration and for that we are running updates
on tables having BLOB/CLOB data. When we execute this pg_wal is filling up.

Do you have any general guidelines for migrating a 5TB + database from
Oracle to Postgres? Any specific guidelines around archiving logs?

Regards,
Aditya.

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