Query data processing method and device, electronic equipment and computer storage medium

The embodiment of the invention discloses a query data processing method and device, electronic equipment and a computer storage medium. The method comprises the steps: obtaining to-be-processed querydata, and splitting the to-be-processed query data into at least two to-be-processed query sub-data; generating a corresponding candidate index data combination based on the to-be-processed query sub-data, and performing cost evaluation on the candidate index data combination according to a target database type of the to-be-processed query data to obtain target index data corresponding to the to-be-processed query sub-data; and performing merging processing on the target index data corresponding to different to-be-processed query sub-data to obtain a processing result of the to-be-processed query data. According to the technical scheme, the universality degree of index optimization is improved, and the great convenience is brought to the use of index optimization. The working efficiency of index optimization is i