doc: update bgwriter description
authorBruce Momjian <[email protected]>
Mon, 16 Nov 2020 18:13:43 +0000 (13:13 -0500)
committerBruce Momjian <[email protected]>
Mon, 16 Nov 2020 18:13:43 +0000 (13:13 -0500)
commitde56e96ac83d2745566d36fd03617561ee026a2b
tree1bdfc42ee0945511b31c01a401404195d0ea6200
parent5491d7829e7ed6726381cfbc90b2ce27c5016f8b
doc:  update bgwriter description

This clarifies exactly what the bgwriter does, which should help with
tuning.

Reported-by: Chris Wilson
Discussion: https://postgr.es/m/160399562040.7809.7335281028960123489@wrigleys.postgresql.org

Backpatch-through: 9.5
doc/src/sgml/config.sgml