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< * Allow control over which tables are WAL-logged [walcontrol] > * Allow WAL logging to be turned off for a table, but the table > might be dropped or truncated during crash recovery [walcontrol] < commit. To do this, only a single writer can modify the table, and < writes must happen only on new pages. Readers can continue accessing < the table. This would affect COPY, and perhaps INSERT/UPDATE too. < Another option is to avoid transaction logging entirely and truncate < or drop the table on crash recovery. These should be implemented < using ALTER TABLE, e.g. ALTER TABLE PERSISTENCE [ DROP | TRUNCATE | < STABLE | DEFAULT ]. Tables using non-default logging should not use < referential integrity with default-logging tables, and tables using < stable logging probably can not have indexes. One complexity is < the handling of indexes on TOAST tables. > commit. This should be implemented using ALTER TABLE, e.g. ALTER > TABLE PERSISTENCE [ DROP | TRUNCATE | DEFAULT ]. Tables using > non-default logging should not use referential integrity with > default-logging tables. A table without dirty buffers during a > crash could perhaps avoid the drop/truncate. > > * Allow WAL logging to be turned off for a table, but the table would > avoid being truncated/dropped [walcontrol] > > To do this, only a single writer can modify the table, and writes > must happen only on new pages so the new pages can be removed during > crash recovery. Readers can continue accessing the table. Such > tables probably cannot have indexes. One complexity is the handling > of indexes on TOAST tables.
The FAQ* files in this directory are the master versions, and the ../../FAQ* text files are created using lynx: lynx -force_html -dont_wrap_pre -dump -hiddenlinks=ignore -nolist FAQ* The TODO.html file in this directory is not the master, but ../../TODO is. The conversion is done using txt2html: txt2html -m -s 100 -p 100 --xhtml --titlefirst \ --body_deco ' bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF"' \ --caps_tag '' \ /pgtop/doc/TODO | sed 's;\[\([^]]*\)\];[<a href="http://momjian.postgresql.org/cgi-bin/pgtodo?\1">\1</a>];g' > /pgtop/doc/src/FAQ/TODO.html