Abstract: A method and system for generating and searching a full text index. The fill text index includes the use of word numbers and a minimum delta which minimizes the need to access document level information during the application of search operators. Word registers having coordinated document level and word level information, as well as relevance information are used in search operations. Word numbers are clustered together during sub-operations in preparation for the next operation in a search query. The fill text index according to the present invention is extremely efficient and greatly reduces table accesses and/or disk I/Os.

Abstract: A computer system and method for document indexing and data retrieval. A full text index is created in two phases. In the first phase, a word list symbol table, an alphabetically ordered list, and a non-repeating word number stream are constructed from the source text. In the second phase, a word number access array and in-memory full text index are constructed and then index data is merged into the final index.

Abstract: A computer system and method for document indexing and data retrieval. A full text index is created in two phases. In the first phase, a word list symbol table, an alphabetically ordered list, and a non-repeating word number stream are constructed from the source text. In the second phase, a word number access array and in-memory full text index are constructed and then index data is merged into the final index.