Avoid extra whitespace in the arguments of <indexterm>.

As noted by Thom Brown, this confuses the DocBook index processor; it
fails to merge entries that differ only in whitespace, and sorts them
unexpectedly as well.  Seems like a toolchain bug, but I'm not going to
hold my breath waiting for a fix.

Note: easiest way to find these is to look for double spaces in HTML.index.

doc/src/sgml/installation.sgml

@@ -1080,14 +1080,15 @@ su - postgres
          pointed to works correctly with <productname>PostgreSQL</>.
         </para>
 
+        <indexterm><primary>cross compilation</primary></indexterm>
+
         <para>
          This option is mainly aimed at binary package distributors
          who know their target operating system well.  The main
          advantage of using this option is that the PostgreSQL package
          won't need to be upgraded whenever any of the many local
          daylight-saving time rules change.  Another advantage is that
-         PostgreSQL can be cross-compiled<indexterm><primary>cross
+         PostgreSQL can be cross-compiled more straightforwardly if the
-         compilation</primary></indexterm> more straightforwardly if the
          time zone database files do not need to be built during the
          installation.
         </para>

doc/src/sgml/libpq.sgml

@@ -1610,10 +1610,12 @@ int PQsocket(const PGconn *conn);
      <term><function>PQbackendPID</function><indexterm><primary>PQbackendPID</></></term>
      <listitem>
       <para>
-       Returns the process <acronym>ID</acronym>
+       Returns the process <acronym>ID</acronym> (PID)<indexterm>
-       (PID)<indexterm><primary>PID</><secondary>determining PID of
+        <primary>PID</>
-       server process</><tertiary>in libpq</></> of the backend
+        <secondary>determining PID of server process</>
-       process handling this connection.
+        <tertiary>in libpq</>
+       </indexterm>
+       of the backend process handling this connection.
 
 <synopsis>
 int PQbackendPID(const PGconn *conn);
@@ -5459,12 +5461,12 @@ int PQlibVersion(void);
 
   <para>
    The function <function>PQsetNoticeReceiver</function>
-   <indexterm><primary>notice
+   <indexterm><primary>notice receiver</></>
-   receiver</></><indexterm><primary>PQsetNoticeReceiver</></> sets or
+   <indexterm><primary>PQsetNoticeReceiver</></> sets or
    examines the current notice receiver for a connection object.
    Similarly, <function>PQsetNoticeProcessor</function>
-   <indexterm><primary>notice
+   <indexterm><primary>notice processor</></>
-   processor</></><indexterm><primary>PQsetNoticeProcessor</></> sets or
+   <indexterm><primary>PQsetNoticeProcessor</></> sets or
    examines the current notice processor.
 
 <synopsis>

doc/src/sgml/manage-ag.sgml

@@ -78,6 +78,8 @@ SELECT datname FROM pg_database;
  <sect1 id="manage-ag-createdb">
   <title>Creating a Database</title>
 
+  <indexterm><primary>CREATE DATABASE</></>
+
   <para>
    In order to create a database, the <productname>PostgreSQL</>
    server must be up and running (see <xref
@@ -86,8 +88,7 @@ SELECT datname FROM pg_database;
 
   <para>
    Databases are created with the SQL command
-   <xref linkend="sql-createdatabase">:<indexterm><primary>CREATE
+   <xref linkend="sql-createdatabase">:
-   DATABASE</></>
 <synopsis>
 CREATE DATABASE <replaceable>name</>;
 </synopsis>

doc/src/sgml/plpgsql.sgml

@@ -3983,13 +3983,16 @@ $$ LANGUAGE plpgsql;
    </para>
 
    <para>
+    <indexterm>
+     <primary>preparing a query</>
+     <secondary>in PL/pgSQL</>
+    </indexterm>
     As each expression and <acronym>SQL</acronym> command is first
     executed in the function, the <application>PL/pgSQL</> interpreter
     creates a prepared execution plan (using the
     <acronym>SPI</acronym> manager's <function>SPI_prepare</function>
-    and <function>SPI_saveplan</function>
+    and <function>SPI_saveplan</function> functions).
-    functions).<indexterm><primary>preparing a query</><secondary>in
+    Subsequent visits to that expression or command
-    PL/pgSQL</></> Subsequent visits to that expression or command
     reuse the prepared plan.  Thus, a function with conditional code
     that contains many statements for which execution plans might be
     required will only prepare and save those plans that are really

doc/src/sgml/plpython.sgml

@@ -398,7 +398,7 @@ $$ LANGUAGE plpythonu;
    <title>Null, None</title>
   <para>
    If an SQL null value<indexterm><primary>null value</primary><secondary
-   sortas="PL/Python">PL/Python</secondary></indexterm> is passed to a
+   sortas="PL/Python">in PL/Python</secondary></indexterm> is passed to a
    function, the argument value will appear as <symbol>None</symbol> in
    Python. The above function definition will return the wrong answer for null
    inputs. We could add <literal>STRICT</literal> to the function definition
@@ -716,8 +716,8 @@ SELECT * FROM multiout_simple_setof(3);
    data between function calls.  This variable is private static data.
    The global dictionary <varname>GD</varname> is public data,
    available to all Python functions within a session.  Use with
-   care.<indexterm><primary>global data</><secondary>in
+   care.<indexterm><primary>global data</>
-   PL/Python</></indexterm>
+   <secondary>in PL/Python</></indexterm>
   </para>
 
   <para>

doc/src/sgml/pltcl.sgml

@@ -344,8 +344,8 @@ spi_exec -array C "SELECT * FROM pg_class" {
        <para>
         Prepares and saves a query plan for later execution.  The
         saved plan will be retained for the life of the current
-        session.<indexterm><primary>preparing a query</><secondary>in
+        session.<indexterm><primary>preparing a query</>
-        PL/Tcl</></>
+        <secondary>in PL/Tcl</></>
        </para>
        <para>
         The query can use parameters, that is, placeholders for

doc/src/sgml/queries.sgml

@@ -895,16 +895,16 @@ SELECT product_id, p.name, (sum(s.units) * p.price) AS sales
     all sales of the product.
    </para>
 
+   <indexterm><primary>functional dependency</primary></indexterm>
+
    <para>
-    If the products table is set up so that,
+    If the products table is set up so that, say,
-    say, <literal>product_id</literal> is the primary key, then it
+    <literal>product_id</literal> is the primary key, then it would be
-    would be enough to group by <literal>product_id</literal> in the
+    enough to group by <literal>product_id</literal> in the above example,
-    above example, since name and price would
+    since name and price would be <firstterm>functionally
-    be <firstterm>functionally
+    dependent</firstterm> on the product ID, and so there would be no
-    dependent</firstterm><indexterm><primary>functional
+    ambiguity about which name and price value to return for each product
-    dependency</primary></indexterm> on the product ID, and so there
+    ID group.
-    would be no ambiguity about which name and price value to return
-    for each product ID group.
    </para>
 
    <para>
@@ -1170,9 +1170,12 @@ SELECT DISTINCT <replaceable>select_list</replaceable> ...
     can be used to specify the default behavior of retaining all rows.)
    </para>
 
+   <indexterm>
+    <primary>null value</>
+    <secondary sortas="DISTINCT">in DISTINCT</>
+   </indexterm>
+
    <para>
-    <indexterm><primary>null value</><secondary sortas="DISTINCT">in
-    DISTINCT</></indexterm>
     Obviously, two rows are considered distinct if they differ in at
     least one column value.  Null values are considered equal in this
     comparison.

doc/src/sgml/runtime.sgml

@@ -142,8 +142,11 @@ postgres$ <userinput>initdb -D /usr/local/pgsql/data</userinput>
    trust other local users, we recommend you use one of
    <command>initdb</command>'s <option>-W</option>, <option>--pwprompt</option>
    or <option>--pwfile</option> options to assign a password to the
-   database superuser.<indexterm><primary>password</><secondary>of the
+   database superuser.<indexterm>
-   superuser</></indexterm>  Also, specify <option>-A md5</> or
+     <primary>password</>
+     <secondary>of the superuser</>
+   </indexterm>
+   Also, specify <option>-A md5</> or
    <option>-A password</> so that the default <literal>trust</> authentication
    mode is not used; or modify the generated <filename>pg_hba.conf</filename>
    file after running <command>initdb</command>, but
@@ -264,8 +267,11 @@ pg_ctl start -l logfile
 
   <para>
    Normally, you will want to start the database server when the
-   computer boots.<indexterm><primary>booting</><secondary>starting
+   computer boots.<indexterm>
-   the server during</></> Autostart scripts are operating-system-specific.
+     <primary>booting</>
+     <secondary>starting the server during</>
+   </indexterm>
+   Autostart scripts are operating-system-specific.
    There are a few distributed with
    <productname>PostgreSQL</productname> in the
    <filename>contrib/start-scripts</> directory. Installing one will require

doc/src/sgml/spi.sgml

@@ -3188,9 +3188,12 @@ char * SPI_getnspname(Relation <parameter>rel</parameter>)
   <title>Memory Management</title>
 
   <para>
+    <indexterm>
+     <primary>memory context</primary>
+     <secondary>in SPI</secondary>
+    </indexterm>
    <productname>PostgreSQL</productname> allocates memory within
-   <firstterm>memory contexts</firstterm><indexterm><primary>memory
+   <firstterm>memory contexts</firstterm>, which provide a convenient method of
-   context</primary><secondary>in SPI</secondary></indexterm>, which provide a convenient method of
    managing allocations made in many different places that need to
    live for differing amounts of time.  Destroying a context releases
    all the memory that was allocated in it.  Thus, it is not necessary

doc/src/sgml/syntax.sgml

@@ -189,9 +189,13 @@ UPDATE "my_table" SET "a" = 5;
     ampersands.  The length limitation still applies.
    </para>
 
+   <indexterm>
+     <primary>Unicode escape</primary>
+     <secondary>in identifiers</secondary>
+   </indexterm>
+
    <para>
-    <indexterm><primary>Unicode escape</primary><secondary>in
+    A variant of quoted
-    identifiers</secondary></indexterm> A variant of quoted
     identifiers allows including escaped Unicode characters identified
     by their code points.  This variant starts
     with <literal>U&amp;</literal> (upper or lower case U followed by

doc/src/sgml/trigger.sgml

@@ -242,9 +242,12 @@
    </para>
 
    <para>
+    <indexterm>
+     <primary>trigger</>
+     <secondary>arguments for trigger functions</>
+    </indexterm>
     When a trigger is being defined, arguments can be specified for
-    it.<indexterm><primary>trigger</><secondary>arguments for trigger
+    it. The purpose of including arguments in the
-    functions</></indexterm> The purpose of including arguments in the
     trigger definition is to allow different triggers with similar
     requirements to call the same function.  As an example, there
     could be a generalized trigger function that takes as its

doc/src/sgml/xtypes.sgml

@@ -32,10 +32,7 @@
   <indexterm>
    <primary>output function</primary>
   </indexterm>
-  A user-defined type must always have input and output
+  A user-defined type must always have input and output functions.
-  functions.<indexterm><primary>input function</primary><secondary>of
-  a data type</secondary></indexterm><indexterm><primary>output
-  function</primary><secondary>of a data type</secondary></indexterm>
   These functions determine how the type appears in strings (for input
   by the user and output to the user) and how the type is organized in
   memory.  The input function takes a null-terminated character string
@@ -218,11 +215,13 @@ CREATE TYPE complex (
  </para>
 
  <para>
+  <indexterm>
+    <primary>array</primary>
+    <secondary>of user-defined type</secondary>
+  </indexterm>
   When you define a new base type,
   <productname>PostgreSQL</productname> automatically provides support
-  for arrays of that
+  for arrays of that type.  The array type typically
-  type.<indexterm><primary>array</primary><secondary>of user-defined
-  type</secondary></indexterm>  The array type typically
   has the same name as the base type with the underscore character
   (<literal>_</>) prepended.
  </para>