Обсуждение: pgsql: doc: use FILTER in aggregate example

doc:  use FILTER in aggregate example

Reported-by: michal.palenik@freemap.sk

Discussion: https://postgr.es/m/163499710897.684.7420075366995883688@wrigleys.postgresql.org

Backpatch-through: 10

Branch
------
REL_13_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/d55fdfb554348ffd8e3afc61d62523a8f7d4a78e

Modified Files
--------------
doc/src/sgml/query.sgml | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)