Fix missing space in docs.

Author: Japin Li
Discussion: https://www.postgresql.org/message-id/MEYP282MB1669C36E5F733C2EFBDCB80BB6619@MEYP282MB1669.AUSP282.PROD.OUTLOOK.COM

diff --git a/doc/src/sgml/arch-dev.sgml b/doc/src/sgml/arch-dev.sgml
index f4c0df80143a28e8fe9737af32b1a39f83d75a6e..761ce37d360a7e39f940d4c5048bf2aa0f06e728 100644 (file)
--- a/doc/src/sgml/arch-dev.sgml
+++ b/doc/src/sgml/arch-dev.sgml
@@ -557,7 +557,7 @@
     A simple <command>INSERT ... VALUES</command> command creates a
     trivial plan tree consisting of a single <literal>Result</literal>
     node, which computes just one result row, feeding that up
-    to<literal>ModifyTable</literal> to perform the insertion.
+    to <literal>ModifyTable</literal> to perform the insertion.
    </para>
 
   </sect1>