Hi hackers~ I find the specification of wal_compression in our docs a little bit confusing for it 'compress full page images when FPW is on or during a base backup', which was true before v17. Since v17, we will also use full page images for creating index or table rewrites through bulk write, so it is inaccurate.
Should we change the doc a little bit: 'compress full page images written to WAL, **like** when FPW is on, or during a base backup', if we may use FPI in other places in the future? -- Regards, Jingtang