Index Module
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This module is introduced with BaseX Template:Mark. It provides XQuery functions for displaying information stored in the database index structures. All functions are introduced with the index:
prefix, which is linked to the statically declared http://basex.org/modules/index
namespace.
Contents
index:facets
Signatures | index:facets($db as item()) as xs:string index:facets($db as item(), $type as xs:string) as xs:string
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Summary | Returns information about possible facets and facet values on a database in document structure format. $db may either be an xs:string , denoting the database name, or a node stored in the database.If $type is specified as flat , the function returns this information in a flat summarized version.
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Errors | BASX0001 is raised if the path index is not available. BASX0002 is raised if $db is a node that is not stored in a database.BASX0003 is raised if the addressed database $db cannot be opened. |
Examples |
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index:texts
Signatures | index:texts($db as item()) as element(value)* index:texts($db as item(), $prefix as xs:string) as element(value)*
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Summary | Returns all strings stored in the text index, along with their number of occurrences. $db may either be an xs:string , denoting the database name, or a node stored in the database.If $prefix is specified, the returned nodes will be refined to the strings starting with that prefix.
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Errors | BASX0001 is raised if the text index is not available. BASX0002 is raised if $db is a node that is not stored in a database.BASX0003 is raised if the addressed database $db cannot be opened. |
index:attributes
Signatures | index:attributes($db as item()) as element(value)* index:attributes($db as item(), $prefix as xs:string) as element(value)*
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Summary | Returns all strings stored in the attribute index, along with their number of occurrences. $db may either be an xs:string , denoting the database name, or a node stored in the database.If $prefix is specified, the returned nodes will be refined to the strings starting with that prefix.
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Errors | BASX0001 is raised if the attribute index is not available. BASX0002 is raised if $db is a node that is not stored in a database.BASX0003 is raised if the addressed database $db cannot be opened. |
index:element-names
Signatures | index:element-names($db as item()) as element(value)*
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Summary | Returns all element names stored in the index, along with their number of occurrences. $db may either be an xs:string , denoting the database name, or a node stored in the database.
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Errors | BASX0001 is raised if the element name index is not available. BASX0002 is raised if $db is a node that is not stored in a database.BASX0003 is raised if the addressed database $db cannot be opened. |
index:attribute-names
Signatures | index:attribute-names($db as item()) as element(value)*
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Summary | Returns all attribute names stored in the index, along with their number of occurrences. $db may either be an xs:string , denoting the database name, or a node stored in the database.
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Errors | BASX0001 is raised if the attribute name index is not available. BASX0002 is raised if $db is a node that is not stored in a database.BASX0003 is raised if the addressed database $db cannot be opened. |