doc: Simplify example of HISTFILE for psql

michaelpq · michaelpq · commit 1840d9f4c899 · 2021-04-15T16:45:34.000+09:00
e4c7619 has added a space to the example used for HISTFILE in the docs of psql before the variable DBNAME, as a workaround because variables were not parsed the same way back then. This behavior has changed in 9.2, causing the example in the psql docs to result in the same history file created with or without a space added before the DBNAME variable. Let's just remove this space in the example, to reduce any confusion, as the point of it is to prove that a per-database history file is easy to set up, and that's easier to read this way. Per discussion with Tom Lane. Reported-by: Ludovic Kuty Discussion: https://postgr.es/m/161830067409.691.16198363670687811485@wrigleys.postgresql.org
diff --git a/doc/src/sgml/ref/psql-ref.sgml b/doc/src/sgml/ref/psql-ref.sgml
@@ -3915,7 +3915,7 @@ bar
         or <filename>%APPDATA%\postgresql\psql_history</filename> on Windows.
         For example, putting:
 <programlisting>
-\set HISTFILE ~/.psql_history- :DBNAME
+\set HISTFILE ~/.psql_history-:DBNAME
 </programlisting>
         in <filename>~/.psqlrc</filename> will cause
         <application>psql</application> to maintain a separate history for
