More coherent +(columns/select/as) quoting notices and descriptions

Author: abraxxa

lib/DBIx/Class/ResultSet.pm

@@ -3892,7 +3892,7 @@ case the key is the C<as> value, and the value is used as the C<select>
 expression). Adds C<me.> onto the start of any column without a C<.> in
 it and sets C<select> from that, then auto-populates C<as> from
 C<select> as normal. (You may also use the C<cols> attribute, as in
-earlier versions of DBIC, but this is deprecated.)
+earlier versions of DBIC, but this is deprecated)
 
 Essentially C<columns> does the same as L</select> and L</as>.
 
@@ -3905,16 +3905,20 @@ is the same as
 
 =head2 +columns
 
+B<NOTE:> You B<MUST> explicitly quote C<'+columns'> when using this attribute.
+Not doing so causes Perl to incorrectly interpret C<+columns> as a bareword
+with a unary plus operator before it, which is the same as simply C<columns>.
+
 =over 4
 
-=item Value: \@columns
+=item Value: \@extra_columns
 
 =back
 
 Indicates additional columns to be selected from storage. Works the same as
-L</columns> but adds columns to the selection. (You may also use the
+L</columns> but adds columns to the current selection. (You may also use the
 C<include_columns> attribute, as in earlier versions of DBIC, but this is
-deprecated). For example:-
+deprecated)
 
   $schema->resultset('CD')->search(undef, {
     '+columns' => ['artist.name'],
@@ -3926,20 +3930,6 @@ passed to object inflation. Note that the 'artist' is the name of the
 column (or relationship) accessor, and 'name' is the name of the column
 accessor in the related table.
 
-B<NOTE:> You need to explicitly quote '+columns' when defining the attribute.
-Not doing so causes Perl to incorrectly interpret +columns as a bareword with a
-unary plus operator before it.
-
-=head2 include_columns
-
-=over 4
-
-=item Value: \@columns
-
-=back
-
-Deprecated.  Acts as a synonym for L</+columns> for backward compatibility.
-
 =head2 select
 
 =over 4
@@ -3970,20 +3960,22 @@ identifier aliasing. You can however alias a function, so you can use it in
 e.g. an C<ORDER BY> clause. This is done via the C<-as> B<select function
 attribute> supplied as shown in the example above.
 
-B<NOTE:> You need to explicitly quote '+select'/'+as' when defining the attributes.
-Not doing so causes Perl to incorrectly interpret them as a bareword with a
-unary plus operator before it.
-
 =head2 +select
 
+B<NOTE:> You B<MUST> explicitly quote C<'+select'> when using this attribute.
+Not doing so causes Perl to incorrectly interpret C<+select> as a bareword
+with a unary plus operator before it, which is the same as simply C<select>.
+
 =over 4
 
-Indicates additional columns to be selected from storage.  Works the same as
-L</select> but adds columns to the default selection, instead of specifying
-an explicit list.
+=item Value: \@extra_select_columns
 
 =back
 
+Indicates additional columns to be selected from storage.  Works the same as
+L</select> but adds columns to the current selection, instead of specifying
+a new explicit list.
+
 =head2 as
 
 =over 4
@@ -3992,7 +3984,7 @@ an explicit list.
 
 =back
 
-Indicates column names for object inflation. That is L</as> indicates the
+Indicates DBIC-side names for object inflation. That is L</as> indicates the
 slot name in which the column value will be stored within the
 L<Row|DBIx::Class::Row> object. The value will then be accessible via this
 identifier by the C<get_column> method (or via the object accessor B<if one
@@ -4028,12 +4020,18 @@ L<DBIx::Class::Manual::Cookbook> for details.
 
 =head2 +as
 
+B<NOTE:> You B<MUST> explicitly quote C<'+as'> when using this attribute.
+Not doing so causes Perl to incorrectly interpret C<+as> as a bareword
+with a unary plus operator before it, which is the same as simply C<as>.
+
 =over 4
 
-Indicates additional column names for those added via L</+select>. See L</as>.
+=item Value: \@extra_inflation_names
 
 =back
 
+Indicates additional inflation names for selectors added via L</+select>. See L</as>.
+
 =head2 join
 
 =over 4