doc: Minor wording changes

From: Dmitry Igrishin 

diff --git a/doc/src/sgml/trigger.sgml b/doc/src/sgml/trigger.sgml
index 52f28bca7a683f86740fb86b0ad7a3e5c7819ef3..22966c06dc0142e7e65a142ddcdc663327956883 100644 (file)
--- a/doc/src/sgml/trigger.sgml
+++ b/doc/src/sgml/trigger.sgml
@@ -125,11 +125,11 @@
     If an INSERT contains an ON CONFLICT
     DO UPDATE clause, it is possible that the effects of all
     row-level BEFORE INSERT triggers
-    and all row-level BEFORE UPDATE triggers can
+    and all row-level BEFORE UPDATE triggers can
     both be applied in a way that is apparent from the final state of
     the updated row, if an EXCLUDED column is referenced.
     There need not be an EXCLUDED column reference for
-    both sets of BEFORE row-level triggers to execute, though.  The
+    both sets of row-level BEFORE triggers to execute, though.  The
     possibility of surprising outcomes should be considered when there
     are both BEFORE INSERT and
     BEFORE UPDATE row-level triggers
@@ -327,7 +327,7 @@
       
        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
+       BEFORE triggers, whereas all
        modifications are visible to statement-level AFTER
        triggers.