Bureaucrats, editor, reviewer, Administrators
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This article is part of the [[Advanced User's GuideXQuery|XQuery Portal]] and introduces . It contains information on the available index structures. The query compiler tries to optimize and speed up queries by applying the index whenever it is possible and seems promising.
Most examples in this article are based on the [http://files.basex.org/xml/factbook.xml factbook.xml] document. To see how a query is rewritten, and if an index is used, please turn on the [[GUI#Visualizations|Info View]] in the GUI or use the [[Command-Line Options#BaseX_Standalone|-V flag]] on the command line:
