Search (Changed) 

Technical Data

Function Is	Changed
For Release	Software component ●      Component: SAP NetWeaver ●      Release: '04 ●      Support Package: Stack 19
Assignment to Application Component	EP-KM (Knowledge Management)
Country Setting	Valid for all countries

Use

Search for More Than One Term (Changed)

If you enter multiple terms in the search field (for example, business software without inverted commas) the system uses an AND operator to connect them by default.

In order to give a higher ranking value in the search results list to documents including both terms as a phrase even if inverted commas are not used for the search terms, the system adds the phrase to the search query using an OR operator as of this Support Package. 

For more information, see KM Search iView.

 

Deactivating the Content Snippets or "Did you mean" Terms Query (New)

TREX normally queries content snippets or "Did you mean" terms every time you execute a search. If you do not display content snippets or "Did you means" terms in your search iView, you can deactivate this query. This can significantly improve search performance.

For more information, see KM Search iView.

 

Multiple Language Selection in Search Options (Changed)

SPS 19 enables administrators to use the configuration of the default search dialog box to define another language, other than the portal logon language of the user who is currently logged on, to be used to filter the search results.

For more information, see the release note Multiple Language Selection in Search Options (Changed).

 

Search Options (New)

There is a new parameter called Enable Web Repository Access for Properties in the search options. If you activate this parameter, queries for non-indexable properties can be sent to Web repositories so that these properties can be displayed in the search results.

The system uses the search result collection renderer to display the search results. You can enter non-indexable properties in the Displayed Properties parameter. If the Enable Web Repository Access for Properties parameter is deactivated, these properties are not queried in the Web repository and are therefore not displayed in the search results.

Note that activating this parameter affects the performance of the search because the Web repositories must answer the queries. Therefore, you should deactivate this parameter if possible.

For more information see Search Options.

 

Cache for Search Results List (New)

Search results list are now stored temporarily in their own cache. Until now, search results list were stored in the control status service cache (css). In the standard delivery, this cache has a lifetime of 30 minutes and a capacity of 2000 entries.

The new cache for search results list, which is called ssc (search session cache), has a shorter lifetime (5 minutes) and a smaller capacity (500 entries) in the standard delivery. These settings and the fact that this cache is used exclusively for search results lists reduce the amount of required memory.

If the user calls the next page of search results within 5 minutes, the page in question is read from the cache. After 5 minutes, the entry is deleted from the cache, allowing the freed memory to be used for other purposes. If the user calls the next page of search results after this time, the system sends a new search query to TREX.

 

Performance-Relevant Settings for the Search (New)

The following settings can have a positive impact on the performance of the search:

●      Wrapping of search results

In the configuration of the index management service, you can configure whether or not wrappings are used in the search results list for objects in certain repository managers. The wrapping prevents time-consuming queries regarding properties being sent to the backend system because the properties are already available in the wrapping.

For more information, see Index Management Service.

●      Reducing the properties during searches

You can use an iView parameter to specify which properties are queried during a search by TREX. This means that the system does not have to transfer all indexed properties every time, instead it transfers only those that are actually used. You have to group together the properties used in a set, which you reference in the search iView.

For more information, see Properties for Search Queries.

●      Removing the preview image from the search results list

In the standard SAP system, the rnd:thumbnail property has been removed from the configuration of the collection renderer for the search (Search Result Renderer).

We recommend checking the configuration of your own collection renderers for the search to see whether the rnd:thumbnail property is specified in the Displayed Properties parameter. If this is the case and you do not require the preview images in your search scenario, delete this property because the query for a preview image in the search results is time-consuming.