1. A method for generating an inverted index for retrieval of data from a data structure, the method comprising: generating a file model structure comprising a raw value data file, a mapped value file, and a dimension table, the generating comprising: populating the dimension table with mapped values and ranges of raw values of a dimension of a data structure, the ranges of raw values mapped to corresponding mapped values; and for raw values within the dimension of the data structure: populating the raw value data file with a raw value of the dimension; and populating the mapped value file with a mapped value corresponding to the raw value within the raw value data file based upon a mapping within the dimension table; and generating an inverted index comprising a recordID file and a Count-Offset file, the generating comprising: for mapped values within the dimension table: populating the recordID file with one or more record identifiers associated with a raw value mapped to a mapped value by falling within a range of raw values within the dimension table; and populating the Count-Offset file with a count value and an offset value of the mapped value based upon the populating of the recordID file.