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=head1 NAME

Lucy::Search::ANDQuery - Intersect multiple result sets.

=head1 SYNOPSIS

    my $foo_and_bar_query = Lucy::Search::ANDQuery->new(
        children => [ $foo_query, $bar_query ],
    );
    my $hits = $searcher->hits( query => $foo_and_bar_query );
    ...



=head1 DESCRIPTION

ANDQuery is a composite L<Query|Lucy::Search::Query> which matches
only when all of its children match, so its result set is the intersection
of their result sets.  Documents which match receive a summed score.

=head1 CONSTRUCTORS

=head2 new( I<[labeled params]> )

    my $foo_and_bar_query = Lucy::Search::ANDQuery->new(
        children => [ $foo_query, $bar_query ],
    );

=over

=item *

B<children> - An array of child Queries.

=back





=head1 METHODS

=head2 add_child(query)

Add a child Query node.



=head1 INHERITANCE

Lucy::Search::ANDQuery isa L<Lucy::Search::PolyQuery> isa L<Lucy::Search::Query> isa L<Lucy::Object::Obj>.


=cut