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Nope, SQL database can split large values over multiple pages so selecting and extra column can mean more dusk IO.
by jeltz 6y ago
Nope, SQL database can split large values over multiple pages so selecting and extra column can mean more dusk IO.
- thecleaner 6y agoI see so multiple page loads are also possible. Is the threshold documented ? Say for example for postgres ?
- anarazel 6y agohttps://www.postgresql.org/docs/devel/storage-toast.html https://www.postgresql.org/docs/devel/storage-toast.html