number_of_filter_references
Counts the number of references to a particular filter.
Tentative (is this correct?): this represents the number of photos in the database captured using the specified filter.
To retrieve the number of references to a particular filter.
CREATE FUNCTION number_of_filter_references(INTEGER) RETURNS BIGINT AS 'select count(photo_tech.identifier) from photo_tech, filter where photo_tech.filter=filter.identifier and filter.identifier = $1' LANGUAGE 'sql';
Version 2.5
Still in use
= Version 2.5 =
CREATE FUNCTION number_of_filter_references(INTEGER) RETURNS BIGINT AS 'select count(photo_tech.identifier) from photo_tech, filter where photo_tech.filter=filter.identifier and filter.identifier = $1' LANGUAGE 'sql';