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SLAPO-VALSORT(5)					      SLAPO-VALSORT(5)

NAME
       slapo-valsort - Value Sorting overlay

SYNOPSIS
       /etc/openldap/slapd.conf

DESCRIPTION
       The  Value  Sorting overlay can be used with a backend database to sort
       the values of specific multi-valued attributes within  a	 subtree.  The
       sorting	occurs	whenever  the  attributes  are	returned  in  a search
       response.

       Sorting can be specified in ascending or descending order, using either
       numeric	or  alphanumeric sort methods. Additionally, a "weighted" sort
       can be  specified,  which  uses	a  numeric  weight  prepended  to  the
       attribute  values.   The weighted sort is always performed in ascending
       order, but may be combined with the other methods for values  that  all
       have  equal  weights.  The weight is specified by prepending an integer
       weight {<weight>} in front of each value of  the	 attribute  for	 which
       weighted	 sorting is desired. This weighting factor is stripped off and
       never returned in search results.

CONFIGURATION
       These slapd.conf options apply to  the  Value  Sorting  overlay.	  They
       should appear after the overlay directive.

       valsort-attr  <attribute>  <baseDN>  (<sort-method>  | weighted [<sort-
       method>])
	      Configure	 a  sorting  method for the specified attribute in the
	      subtree rooted at baseDN.	 The sort-method may be one of	alpha-
	      ascend,  alpha-descend,  numeric-ascend, or numeric-descend.  If
	      the special weighted method  is  specified,  a  secondary	 sort-
	      method  may  also	 be  specified.	 It  is an error to specify an
	      alphanumeric sort-method for an attribute with Integer or Numer-
	      icString	syntax,	 and it is an error to specify a numeric sort-
	      method for an attribute with a  syntax  other  than  Integer  or
	      NumericString.

EXAMPLES
	    database bdb
	    suffix dc=example,dc=com
	    ...
	    overlay valsort
	    valsort-attr member ou=groups,dc=example,dc=com alpha-ascend

FILES
       /etc/openldap/slapd.conf
	      default slapd configuration file

SEE ALSO
       slapd.conf(5).

ACKNOWLEDGEMENTS
       This module was written in 2005 by Howard Chu of Symas Corporation. The
       work was sponsored by Stanford University.

OpenLDAP 2.3.37			  2007/07/20		      SLAPO-VALSORT(5)

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