doc: Fix description WAL summarizer in glossary
The WAL summarizer is an auxiliary process.
Oversight in 7b1dbf0a8d1d.
Author: Masahiro Ikeda
Discussion: https://postgr.es/m/d3a5a4278fd8d9e7a47c6aa4db9e9a39@oss.nttdata.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/d872e1b4730b793c9d72c80b65feb988269104e2
Modified Files
--------------
doc/src/sgml/glossary.sgml | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)