Search::Xapian::Enquire Search::Xapian::Enquire is a Perl module to make queries against a database.
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database Perl module database queries queries Xapian Xapian search

Search::Xapian::Enquire Description

Search::Xapian::Enquire is a Perl module to make queries against a database. Search::Xapian::Enquire is a Perl module to make queries against a database.This class provides an interface to the information retrieval system for the purpose of searching.METHODSnew set_querytakes either a ready made Search::Xapian::Query or a scalar containing a query, which in that case will be passed to Search::Xapian::Query's constructor, together with any other passed arguments.set_query_object < query > get_query matches < start > < size > Takes the start element, and maximum number of elements (and optionally the minimum number of matches to check), and returns an array tied to Search::Xapian::MSet::Tied.get_matching_terms_beginReturns a Search::Xapian::TermIterator, pointing to the start of the stream.get_matching_terms_endReturns a Search::Xapian::TermIterator, pointing to the end of the stream.set_collapse_key < collapse_key > set_docid_order < order >Set the direction in which documents are ordered by document id in the returned MSet.This order only has an effect on documents which would otherwise have equal rank. For a weighted probabilistic match with no sort value, this means documents with equal weight. For a boolean match, with no sort value, this means all documents. And if a sort value is used, this means documents with equal sort value (and also equal weight if ordering on relevance after the sort).order can be ENQ_ASCENDING (the default, docids sort in ascending order), ENQ_DESCENDING (docds sort in descending order), or ENQ_DONT_CARE (docids sort in whatever order is most efficient for the backend.)Note: If you add documents in strict date order, then a boolean search - i.e. set_weighting_scheme(Search::Xapian::BoolWeight->new()) - with set_docid_order(ENQ_DESCENDING) is a very efficient way to perform "sort by date, newest first".set_cutoff < percent_cutoff > set_sort_by_relevanceSet the sorting to be by relevance only. This is the default.set_sort_by_value < sort_key > Set the sorting to be by value only.sort_key - value number to reorder on. Sorting is with a string compare. If ascending is true (the default) higher is better; if ascending is false, lower is better.ascending - If true, documents values which sort higher by string compare are better. If false, the sort order is reversed. (default true)set_sort_by_value_then_relevance < sort_key > < ascending >Set the sorting to be by value, then by relevance for documents with the same value.sort_key - value number to reorder on. Sorting is with a string compare. If ascending is true (the default) higher is better; if ascending is false, lower is better.ascending - If true, documents values which sort higher by string compare are better. If false, the sort order is reversed. (default true)set_sort_by_relevance_then_value < sort_key > < ascending >Set the sorting to be by relevance then value.Note that with the default BM25 weighting scheme parameters, non-identical documents will rarely have the same weight, so this setting will give very similar results to set_sort_by_relevance(). It becomes more useful with particular BM25 parameter settings (e.g. BM25Weight(1,0,1,0,0)) or custom weighting schemes.sort_key - value number to reorder on. Sorting is with a string compare. If ascending is true (the default) higher is better; if ascending is false, lower is better.ascending - If true, documents values which sort higher by string compare are better. If false, the sort order is reversed. (default true)get_msetGet match set.get_eset register_match_decoder < name > < mdecider >See xapian api doc for these functions.get_descriptionReturns a description of the object (for introspection). Requirements: · Perl

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