1. A method for storing data in a relational database system using a processor, the method comprising: assigning a collection of values to a structure dictionary, wherein each of the values represents the value of a row for an attribute and has a unique ordinal number within the collection, and wherein the structure dictionary contains structures defined based on at least one of interaction with a user of the system via an interface, automatic detection of structures occurring in data, automatic detection of frequencies of values occurring in data, analysis of a history of queries, and predetermined information about structures relevant to data content that is stored in the system; for each structure in the structure dictionary, forming a structure match list from ordinal numbers of values matching the structure, and a structure sub-collection from values matching the structure, using the processor; forming an outlier match list from ordinal numbers of values that are not null and do not match any structure in the structure dictionary, and an outlier sub-collection from values that are not null and do not match any structure in the structure dictionary, using the processor; and storing the collection of values in the relational database in a form of structure match lists, structure sub-collections, outlier match list and outlier sub-collection.
1. A method for storing data in a relational database system using a processor, the method comprising: assigning a collection of values to a structure dictionary, wherein each of the values represents the value of a row for an attribute and has a unique ordinal number within the collection, and wherein the structure dictionary contains structures defined based on at least one of interaction with a user of the system via an interface, automatic detection of structures occurring in data, automatic detection of frequencies of values occurring in data, analysis of a history of queries, and predetermined information about structures relevant to data content that is stored in the system; for each structure in the structure dictionary, forming a structure match list from ordinal numbers of values matching the structure, and a structure sub-collection from values matching the structure, using the processor; forming an outlier match list from ordinal numbers of values that are not null and do not match any structure in the structure dictionary, and an outlier sub-collection from values that are not null and do not match any structure in the structure dictionary, using the processor; and storing the collection of values in the relational database in a form of structure match lists, structure sub-collections, outlier match list and outlier sub-collection. 29. The method according to claim 1 , wherein there are groupings of data rows and each collection of values contains the values of a single data attribute for a single grouping of data rows, ordinal numbers of values in the collection of values being equal to ordinal numbers of rows in the corresponding grouping of data rows, and collections of values corresponding to the same data attribute being assigned to the same structure dictionary.