Subparagraph 1:
I suggest to replace
"Statement-level triggers follow simple visibility rules: none of the
changes made by a statement are visible to statement-level
triggers that are invoked before the statement, whereas all
modifications are visible to statement-level AFTER triggers."
with
"Statement-level triggers follow simple visibility rules: none of the
changes made by a statement are visible to statement-level
BEFORE triggers, whereas all modifications are visible to
statement-level AFTER triggers."
--
// Dmitry.