diff --git a/contrib/postgres_fdw/deparse.c b/contrib/postgres_fdw/deparse.c
index 6476005..aaf9108 100644
--- a/contrib/postgres_fdw/deparse.c
+++ b/contrib/postgres_fdw/deparse.c
@@ -939,7 +939,7 @@ deparseTargetList(StringInfo buf,
 }
 
 /*
- * Deparse the appropriate locking clause (FOR SELECT or FOR SHARE) for a
+ * Deparse the appropriate locking clause (FOR UPDATE or FOR SHARE) for a
  * given relation (context->foreignrel).
  */
 static void
@@ -1163,7 +1163,7 @@ deparseFromExprForRel(StringInfo buf, PlannerInfo *root, RelOptInfo *foreignrel,
 		/*
 		 * For a join relation FROM clause entry is deparsed as
 		 *
-		 * ((outer relation) <join type> (inner relation) ON (joinclauses)
+		 * ((outer relation) <join type> (inner relation) ON (joinclauses))
 		 */
 		appendStringInfo(buf, "(%s %s JOIN %s ON ", join_sql_o.data,
 					   get_jointype_name(fpinfo->jointype), join_sql_i.data);
diff --git a/contrib/postgres_fdw/postgres_fdw.c b/contrib/postgres_fdw/postgres_fdw.c
index 931bcfd..bfd81c4 100644
--- a/contrib/postgres_fdw/postgres_fdw.c
+++ b/contrib/postgres_fdw/postgres_fdw.c
@@ -484,7 +484,7 @@ postgresGetForeignRelSize(PlannerInfo *root,
 	fpinfo = (PgFdwRelationInfo *) palloc0(sizeof(PgFdwRelationInfo));
 	baserel->fdw_private = (void *) fpinfo;
 
-	/* Base foreign tables need to be push down always. */
+	/* Base foreign tables need to be pushed down always. */
 	fpinfo->pushdown_safe = true;
 
 	/* Look up foreign-table catalog info. */
@@ -2637,7 +2637,9 @@ estimate_path_cost_size(PlannerInfo *root,
 			 * rows.
 			 */
 
-			/* Calculate the cost of clauses pushed down the foreign server */
+			/*
+			 * Calculate the cost of clauses pushed down to the foreign server
+			 */
 			cost_qual_eval(&remote_conds_cost, fpinfo->remote_conds, root);
 			/* Calculate the cost of applying join clauses */
 			cost_qual_eval(&join_cost, fpinfo->joinclauses, root);