doc: Add missing semicolon in example

One of the examples on the SELECT page was missing a semicolon from
a listing which has the look and feel of being a psql session. This
adds the missing semicolon and also removes the newline between the
query and results to match the other examples nearby.

Backpatch to all supported branches to avoid backpatching issues on
this page.

Reported-by: tim.needham2@gmail.com
Discussion: https://postgr.es/m/169965004097.225187.12941375915673151540@wrigleys.postgresql.org
Backpatch-through: v12

diff --git a/doc/src/sgml/ref/select.sgml b/doc/src/sgml/ref/select.sgml
index 5df0d89b54b6e087d0eb9f75a76b90e9cc15a524..69056a84c3778c7aa61c9030583d2e716e1fa55d 100644 (file)
--- a/doc/src/sgml/ref/select.sgml
+++ b/doc/src/sgml/ref/select.sgml
@@ -1918,8 +1918,7 @@ WITH t AS (
   )
 SELECT * FROM t
 UNION ALL
-SELECT * FROM t
-
+SELECT * FROM t;
          x
 --------------------
   0.534150459803641