Full-text search device performing merge processing by using full-text index-for-registration/deletion storage part with performing registration/deletion processing by using other full-text index-for-registration/deletion storage part

A full-text search device searching for a document containing a specified character string from a plurality of document data, the device comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• a data transfer part transferring data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part for each of inverted lists composing the full-text index, the data transfer part performing a data transfer transferring data from said full-text index-for-registration storage part to said full-text index-for-search storage part upon a starting condition that a number of document data registered in said-full-text index-for-registration storage part reaches a predetermined number;
• and
• a data transfer time storage part recording a data transfer time required for said data transfer,
• wherein said data transfer part changes the starting condition for a next data transfer when said data transfer time exceeds a predetermined time.

A full-text search device searching for a document containing a specified character string from a plurality of document data, the device comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• a data transfer part transferring data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part for each of inverted lists composing the full-text index, the data transfer part performing a data transfer transferring data from said full-text index-for-registration storage part to said full-text index-for-search storage part upon a starting condition that a capacity of said full-text index-for-registration storage part reaches a predetermined capacity;
• and
• a data transfer time storage part recording a data transfer time required for said data transfer,
• wherein said data transfer part changes the starting condition for a next data transfer when said data transfer time exceeds a predetermined time.

A full-text search device searching for a document containing a specified character string from a plurality of document data, the device comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• a data transfer part transferring data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part for each of inverted lists composing the full-text index, the data transfer part performing a data transfer transferring data from said full-text index-for-deletion storage part to said full-text index-for-search storage part upon a starting condition that a number of document data registered in said full-text index-for-deletion storage part reaches a predetermined number;
• and
• a data transfer time storage part recording a data transfer time required for said data transfer,
• wherein said data transfer part changes the starting condition for a next data transfer when said data transfer time exceeds a predetermined time.

A full-text search device searching for a document containing a specified character string from a plurality of document data, the device comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• a data transfer part transferring data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part for each of inverted lists composing the full-text index, the data transfer part performing a data transfer transferring data from said full-text index-for-deletion storage part to said full-text index-for-search storage part upon a starting condition that a capacity of said full-text index-for-deletion storage part reaches a predetermined capacity;
• and
• a data transfer time storage part recording a data transfer time required for said data transfer,
• wherein said data transfer part changes the starting condition for a next data transfer when said data transfer time exceeds a predetermined time.

A full-text search device searching for a document containing a specified character string from a plurality of document data, the device comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• and
• a merging part performing a merge processing of merging data from said full-text index-for-registration storage part to said full-text index-for-search storage part.

A full-text search device searching for a document containing a specified character string from a plurality of document data, the device comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index-for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• and
• a merging part performing a merge processing of merging data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part.

A full-text search device searching for a document containing a specified character string from a plurality of document data, the device comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• and
• a merging part performing a merge processing of merging data from said full-text index-for-deletion storage part to said full-text index-for-search storage part.

A database management program for causing a computer to function as a database management system managing a database, comprising:

• a first data retaining part for search performing a search operation of data at a high speed, and performing a changing operation of data at a low speed;
• second data retaining parts for insertion and for deletion each performing a search operation of data at a low speed, and performing a changing operation of data at a high speed;
• a data transfer part transferring data from each of said second data retaining parts to said first data retaining part so as to reflect a result of an insertion operation or a deletion operation;
• a database operation request processing part executing a operation request with respect to the database;
• a transaction processing part guaranteeing a consistency of data between said data transfer part and said database operation request processing part;
• and
• a file switching part switching said second data retaining parts between the operation request with respect to the database and an asynchronous merge processing to said first data retaining part so that when one of said second data retaining parts is used for the asynchronous merge processing, the other second data retaining part is used for the operation request with respect to the database.

A full-text search program for causing a computer to function as a full-text search device searching for a document containing a specified character string from a plurality of document data, comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• a data transfer part transferring data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part for each of inverted lists composing the full-text index, the data transfer part performing a data transfer transferring data from said full-text index-for-registration storage part to said full-text index-for-search storage part upon a starting condition that a number of document data registered in said full-text index-for-registration storage part reaches a predetermined number;
• and
• a data transfer time storage part recording a data transfer time required for said data transfer,
• wherein said data transfer part changes the starting condition for a next data transfer when said data transfer time exceeds a predetermined time.

A full-text search program for causing a computer to function as a full-text search device searching for a document containing a specified character string from a plurality of document data, comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• a data transfer part transferring data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part for each of inverted lists composing the full-text index, the data transfer part performing a data transfer transferring data from said full-text index-for-registration storage part to said full-text index-for-search storage part upon a starting condition that a capacity of said full-text index-for-registration storage part reaches a predetermined capacity;
• and
• a data transfer time storage part recording a data transfer time required for said data transfer,
• wherein said data transfer part changes the starting condition for a next data transfer when said data transfer time exceeds a predetermined time.

A full-text search program for causing a computer to function as a full-text search device searching for a document containing a specified character string from a plurality of document data, comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• a data transfer part transferring data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part for each of inverted lists composing the full-text index, the data transfer part performing a data transfer transferring data from said full-text index-for-deletion storage part to said full-text index-for-search storage part upon a starting condition that a number of document data registered in said full-text index-for-deletion storage part reaches a predetermined number;
• and
• a data transfer time storage part recording a data transfer time required for said data transfer,
• wherein said data transfer part changes the starting condition for a next data transfer when said data transfer time exceeds a predetermined time.

A full-text search program for causing a computer to function as a full-text search device searching for a document containing a specified character string from a plurality of document data, comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• a data transfer part transferring data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part for each of inverted lists composing the full-text index, the data transfer part performing a data transfer transferring data from said full-text index-for-deletion storage part to said full-text index-for-search storage part upon a starting condition that a capacity of said full-text index-for-deletion storage part reaches a predetermined capacity;
• and
• a data transfer time storage part recording a data transfer time required for said data transfer,
• wherein said data transfer part changes the starting condition for a next data transfer when said data transfer time exceeds a predetermined time.

A full-text search program for causing a computer to function as a full-text search device searching for a document containing a specified character string from a plurality of document data, comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• and
• a merging part performing a merge processing of merging data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part.

A computer readable recording medium storing a database management program for causing a computer to function as a database management system managing a database, comprising:

• a first data retaining part for search performing a search operation of data at a high speed, and performing a changing operation of data at a low speed;
• second data retaining parts for insertion and for deletion each performing a search operation of data at a low speed, and performing a changing operation of data at a high speed;
• a data transfer part transferring data from each of said second data retaining parts to said first data retaining part so as to reflect a result of an insertion operation or a deletion operation;
• a database operation request processing part executing a operation request with respect to the database;
• a transaction processing part guaranteeing a consistency of data between said data transfer part and said database operation request processing part;
• and
• a file switching part switching said second data retaining parts between the operation request with respect to the database and an asynchronous merge processing to said first data retaining part so that when one of said second data retaining parts is used for the asynchronous merge processing, the other second data retaining part is used for the operation request with respect to the database.

A computer readable recording medium storing a full-text search program for causing a computer to function as a full-text search device searching for a document containing a specified character string from a plurality of document data, comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• a data transfer part transferring data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part for each of inverted lists composing the full-text index, the data transfer part performing a data transfer transferring data from said full-text index-for-registration storage part to said full-text index-for-search storage part upon a starting condition that a number of document data registered in said full-text index-for-registration storage part reaches a predetermined number;
• and
• a data transfer time storage part recording a data transfer time required for said data transfer,
• wherein said data transfer part changes the starting condition for a next data transfer when said data transfer time exceeds a predetermined time.

A computer readable recording medium storing a full-text search program for causing a computer to function as a full-text search device searching for a document containing a specified character string from a plurality of document data, comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• a data transfer part transferring data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part for each of inverted lists composing the full-text index, the data transfer part performing a data transfer transferring data from said full-text index-for-registration storage part to said full-text index-for-search storage part upon a starting condition that a capacity of said full-text index-for-registration storage part reaches a predetermined capacity;
• and
• a data transfer time storage part recording a data transfer time required for said data transfer,
• wherein said data transfer part changes the starting condition for a next data transfer when said data transfer time exceeds a predetermined time.

A computer readable recording medium storing a full-text search program for causing a computer to function as a full-text search device searching for a document containing a specified character string from a plurality of document data, comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• a data transfer part transferring data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part for each of inverted lists composing the full-text index, the data transfer part performing a data transfer transferring data from said full-text index-for-deletion storage part to said full-text index-for-search storage part upon a starting condition that a number of document data registered in said full-text index-for-deletion storage part reaches a predetermined number;
• and
• a data transfer time storage part recording a data transfer time required for said data transfer,
• wherein said data transfer part changes the starting condition for a next data transfer when said data transfer time exceeds a predetermined time.

A computer readable recording medium storing a full-text search program for causing a computer to function as a full-text search device searching for a document containing a specified character string from a plurality of document data, comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• a data transfer part transferring data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part for each of inverted lists composing the full-text index, the data transfer part performing a data transfer transferring data from said full-text index-for-deletion storage part to said full-text index-for-search storage part upon a starting condition that a capacity of said full-text index-for-deletion storage part reaches a predetermined capacity;
• and
• a data transfer time storage part recording a data transfer time required for said data transfer,
• wherein said data transfer part changes the starting condition for a next data transfer when said data transfer time exceeds a predetermined time.

A computer readable recording medium storing a full-text search program for causing a computer to function as a full-text search device searching for a document containing a specified character string from a plurality of document data, comprising:

• a document data storage part storing registered document data;
• a full-text index-for-search storage part storing a full-text index for search;
• a registration processing part performing a registration processing with respect to document data;
• a deletion processing part performing a deletion processing with respect to document data;
• a search processing part performing a search processing;
• a full-text index-for-registration storage part storing a full-text index for registration, the full-text index-for-registration storage part being provided aside from said full-text index-for-search storage part;
• a full-text index-for-deletion storage part storing a full-text index for deletion, the full-text index-for-deletion storage part being provided aside from said full-text index-for-search storage part;
• and
• a merging part performing a merge processing of merging data from said full-text index-for-registration storage part and said full-text index-for-deletion storage part to said full-text index-for-search storage part.