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| 4 | <title>The Greenstone Librarian Interface - Help Pages</title>
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| 9 | <td align="center" width="15%"><img height="45" src="../gatherer_medium.gif" width="45"></td><td align="center" width="*"><a name="searchindexes"><font face="Verdana" size="5"><strong>6.5: Search Indexes</strong></font></a></td><td align="center" width="15%"><img height="45" src="../gatherer_medium.gif" width="45"></td>
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| 13 | <p>Indexes specify what parts of the collection are searchable. This section explains how to add and remove indexes, and set a default index. Under "Design Sections", click "Search Indexes".</p>
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| 14 | <p>To add an index, type a name for it into the "Index Name" field. Select which of the possible information sources to index by clicking the checkboxes beside them. The list shows all the assigned metadata elements, as well the full text. Having selected the data sources, choose the granularity of the index, using the "At the level" menu. Once these details are complete, "Add Index" becomes active (unless there is an existing index with the same settings). Click it to add the new index.</p>
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| 15 | <p>To edit an index, select it and change the index details, then click "Replace Index".</p>
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| 16 | <p>To remove an index, select it from the list of assigned indexes and click "Remove Index".</p>
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| 17 | <p>To create an index covering text and all metadata, click "Add All".</p>
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| 18 | <p>The default index, the one used on the collection's search page, is tagged with "[Default Index]" in the "Assigned Indexes" list. To set it, select an index from the list and click "Set Default".</p>
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| 19 | <p>If advanced searching is enabled (via the Search Types view), the index controls are different. There is a new pseudo-data source "allfields" which provides searching across all specified indexes at once. Levels are not assigned to a specific index, but apply across all indexes: thus indexes and levels are added separately. "Add All" creates a separate index for each metadata field in this mode.</p>
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| 20 | <p>The name of each index will default to the source name. To change the name, select an index, change its details, and click "Replace Index".</p>
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