doc: move ROW IS NULL examples to a different chapter Also add examples.
Reported-by: Wolfgang Walther Discussion: https://postgr.es/m/21ff8e9c-627a-f949-fb00-a41b9ddcc...@technowledgy.de Backpatch-through: master Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/bd86407892126d8c950dd90e6016ea6d0450bd19 Modified Files -------------- doc/src/sgml/func.sgml | 14 +++++++++++++- doc/src/sgml/syntax.sgml | 17 ++++++----------- 2 files changed, 19 insertions(+), 12 deletions(-)