Information processing system and method and program

An information processing method executed by an information processing system that executes processing for searching data to be searched by using a query condition that can be entered via a predetermined user interface and in which individual conditions constituting a query satisfy three properties consisting of reductiveness, idempotence, and commutativity, the information processing method comprising:

• a pre-processing executing step of executing processing prior to processing for searching;
• and
• a search processing step of executing processing for searching,
• wherein the pre-processing executing step includes:
• a query extracting step of extracting a plurality of limited kinds of sub-queries constituting minimum units of queries and satisfying the three properties consisting of the reductiveness, the idempotence, and the commutativity by analyzing a set of statically defined kinds of queries;
• a query executing step of executing each of the plurality of kinds of sub-queries extracted in the query extracting step;
• an associating step of generating, as association data for each of the plurality of kinds of sub-queries extracted in the query extracting step, data in which a result of execution in the query executing step is associated with information that allows identification of the kind of sub-query associated with the result of execution;
• and
• a management step of managing the association data for each of the plurality of kinds of sub-queries, generated in the associating step, and
• wherein the search processing step includes:
• an accepting step of accepting, as a searching query condition, a query condition entered for searching via the user interface;
• a dividing step of dividing the searching query condition accepted in the accepting step into a set of one or more kinds of sub-queries;
• an execution-result extracting step of extracting, from the association data, the result of execution of each of the one or more kinds of sub-queries resulting from the division in the dividing step and belonging to the set based on the information that allows identification of each of the one or more kinds of sub-queries;
• and
• a search-result generating step of generating, based on the result of extraction in the execution-result extracting step, a search result for the searching query condition accepted in the accepting step.

A non-transitory computer readable medium storing a program for a server and a client included in an information processing system that executes processing for searching data to be searched by using a query condition that can be entered via a predetermined user interface and in which individual conditions constituting a query satisfy three properties consisting of reductiveness, idempotence, and commutativity,

• the program allowing the server to execute control processing including a pre-processing executing step of executing processing prior to processing for searching;
• and
• the program allowing the server or the client to execute control processing including a search processing step of executing processing for searching,
• wherein the pre-processing executing step includes:
• a query extracting step of extracting a plurality of limited kinds of sub-queries constituting minimum units of queries and satisfying the three properties consisting of the reductiveness, the idempotence, and the commutativity by analyzing a set of statically defined kinds of queries;
• a query executing step of executing each of the plurality of kinds of sub-queries extracted in the query extracting step;
• an associating step of generating, as association data for each of the plurality of kinds of sub-queries extracted in the query extracting step, data in which a result of execution in the query executing step is associated with information that allows identification of the kind of sub-query associated with the result of execution;
• and
• a management step of managing the association data for each of the plurality of kinds of sub-queries, generated in the associating step, and
• wherein the search processing step includes:
• an accepting step of accepting, as a searching query condition, a query condition entered for searching via the user interface;
• a dividing step of dividing the searching query condition accepted in the accepting step into a set of one or more kinds of sub-queries;
• an execution-result extracting step of extracting, from the association data, the result of execution of each of the one or more kinds of sub-queries resulting from the division in the dividing step and belonging to the set based on the information that allows identification of each of the one or more kinds of sub-queries;
• and
• a search-result generating step of generating, based on the result of extraction in the execution-result extracting step, a search result for the searching query condition accepted in the accepting step.