Difference between revisions of "Index Module"
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m (Text replacement - "\[\[#(index:[^|]+)\|(index:[^|]+)\]\]" to "{{Function|Index|$1}}") |
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;Version 7.3 | ;Version 7.3 | ||
− | * Updated: {{Function| | + | * Updated: {{Function||index:texts}}, {{Function||index:attributes}}: signature with three arguments added. |
The module was introduced with Version 7.1. | The module was introduced with Version 7.1. |
Revision as of 20:03, 18 July 2022
This XQuery Module provides functions for displaying information stored in the database index structures.
For functions that use the indexes to return nodes see Value Indexes in the Database Module and ft:search
in the Full-Text Module.
Contents
Conventions
All functions and errors in this module are assigned to the http://basex.org/modules/index
namespace, which is statically bound to the index
prefix.
Functions
index:facets
Signatures | index:facets($db as xs:string) as xs:string index:facets($db as xs:string, $type as xs:string) as xs:string
|
Summary | Returns information about all facets and facet values of the database $db in document structure format.If $type is specified as flat , the function returns this information in a flat summarized version. The returned data is derived from the Path Index.
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Errors | db:open : The addressed database does not exist or could not be opened.
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Examples |
|
index:texts
Signatures | index:texts($db as xs:string) as element(value)* index:texts($db as xs:string, $prefix as xs:string) as element(value)* index:texts($db as xs:string, $start as xs:string, $ascending as xs:boolean) as element(value)*
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Summary | Returns all strings stored in the Text Index of the database $db , along with their number of occurrences.If $prefix is specified, the returned entries will be refined to the ones starting with that prefix.If $start and $ascending are specified, all nodes will be returned after or before the specified start entry.
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Errors | db:open : The addressed database does not exist or could not be opened.db:no-index : the index is not available.
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index:attributes
Signatures | index:attributes($db as xs:string) as element(value)* index:attributes($db as xs:string, $prefix as xs:string) as element(value)* index:attributes($db as xs:string, $start as xs:string, $ascending as xs:boolean) as element(value)*
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Summary | Returns all strings stored in the Attribute Index of the database $db , along with their number of occurrences.If $prefix is specified, the returned entries will be refined to the ones starting with that prefix.If $start and $ascending are specified, all nodes will be returned after or before the specified start entry.
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Errors | db:open : The addressed database does not exist or could not be opened.db:no-index : the index is not available.
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index:tokens
Signatures | index:tokens($db as xs:string) as element(value)*
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Summary | Returns all strings stored in the Token Index of the database $db , along with their number of occurrences.
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Errors | db:open : The addressed database does not exist or could not be opened.db:no-index : the index is not available.
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index:element-names
Signatures | index:element-names($db as xs:string) as element(value)*
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Summary | Returns all element names stored in the Name Index of the database $db , along with their number of occurrences.
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Errors | db:open : The addressed database does not exist or could not be opened.
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index:attribute-names
Signatures | index:attribute-names($db as xs:string) as element(value)*
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Summary | Returns all attribute names stored in the Name Index of the database $db , along with their number of occurrences.
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Errors | db:open : The addressed database does not exist or could not be opened.
|
Changelog
- Version 8.4
- Added:
index:tokens
- Version 7.7
- Updated: the functions no longer accept Database Nodes as reference. Instead, the name of a database must now be specified.
- Version 7.3
- Updated:
index:texts
,index:attributes
: signature with three arguments added.
The module was introduced with Version 7.1.