The
Drs
URL query parameter sets an EQL filter for a dimension
search.
This filter restricts the scope of the records that will be considered for a dimension search. Only dimension values represented on at least one record satisfying the filter are returned as search results.
Note the following about the
Drs
parameter:
Because the
Drs
syntax is identical to that of
Nrs
, you can use the various EQL requests that are
documented earlier in this section.
The following example illustrates a dimension search query using an EQL filter:
N=0&D=novel&Drs=collection()/record[author_deceased = "false"]
The query uses the
D
parameter to specify
novel as the search term, while the
Drs
parameter sets a filter for records in which the
author_deceased
property is set to false (that is,
records of deceased authors).