* Jon Nelson (jnelson+pgsql@xxxxxxxxxxx) wrote: > Isn't the WAL basically COW? eh..? No.. The WAL is used to record what changes are made to the various files in the database, it certainly isn't an kind of "copy-on-write" system, where we wait until a change is made to data before copying it.. If you INSERT .. SELECT, you're going to get the real data in the WAL, and also in the heap of the new table.. Thanks, Stephen
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