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Page: https://www.postgresql.org/docs/9.6/runtime-config-wal.html
Description:
https://www.postgresql.org/docs/9.6/runtime-config-wal.html
19.5.2
checkpoint_flush_after (integer)
Whenever more than checkpoint_flush_after bytes have been written while
performing a checkpoint, attempt to force the OS to issue these writes to
the ...
bytes or pages?tgresql.conf says pages