doc: Small punctuation improvement

diff --git a/doc/src/sgml/ddl.sgml b/doc/src/sgml/ddl.sgml
index cab6cf24ee459d742d54bec86143105926ae4a1c..c8268222af7ab3a066076183d3f7cfad001591dc 100644 (file)
--- a/doc/src/sgml/ddl.sgml
+++ b/doc/src/sgml/ddl.sgml
@@ -3889,9 +3889,9 @@ EXPLAIN SELECT count(*) FROM measurement WHERE logdate >= DATE '2008-01-01';
     Partition pruning can be performed not only during the planning of a
     given query, but also during its execution.  This is useful as it can
     allow more partitions to be pruned when clauses contain expressions
-    whose values are not known at query planning time; for example,
+    whose values are not known at query planning time, for example,
     parameters defined in a PREPARE statement, using a
-    value obtained from a subquery or using a parameterized value on the
+    value obtained from a subquery, or using a parameterized value on the
     inner side of a nested loop join.  Partition pruning during execution
     can be performed at any of the following times: