Fix a missing article in the documentation

Per complaint from Grant Gryczan.

It's a very old typo; backpatch all the way back.

Author: Laurenz Albe <[email protected]>
Discussion: https://postgr.es/m/172179789219.915368.16590585529628354757@wrigleys.postgresql.org

diff --git a/doc/src/sgml/parallel.sgml b/doc/src/sgml/parallel.sgml
index 2b2c8cbffd6c4f0ff8882839e24ffb1eae9c2710..587f25874190e6fd6043f4d9d345e6d8d2df2bc3 100644 (file)
--- a/doc/src/sgml/parallel.sgml
+++ b/doc/src/sgml/parallel.sgml
@@ -202,7 +202,7 @@ EXPLAIN SELECT * FROM pgbench_accounts WHERE filler LIKE '%x%';
   </itemizedlist>
 
   <para>
-    Even when parallel query plan is generated for a particular query, there
+    Even when a parallel query plan is generated for a particular query, there
     are several circumstances under which it will be impossible to execute
     that plan in parallel at execution time.  If this occurs, the leader
     will execute the portion of the plan below the <literal>Gather</literal>