On Sat, Nov 23, 2019 at 11:35:09AM -0500, Noah Misch wrote: > That longstanding optimization is too useful to remove, but likely not useful > enough to add today if we didn't already have it. The initial-data-load use > case remains plausible. I can also imagine using wal_level=minimal for data > warehouse applications where one can quickly rebuild from the authoritative > data.
I can easily imagine cases where a user would like to use the benefit of the optimization for an initial data load, and afterwards update wal_level to replica so as they avoid the initial WAL burst which serves no real purpose. So the first argument is pretty strong IMO, the second much less. -- Michael
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