{'fraction_non_alphanumeric': 0.013392857142857142, 'fraction_numerical': 0.0, 'mean_word_length': 5.0675675675675675, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Research on query technology in spatial database

Space operations in spatial database operation is the most complicated and time-consuming operation. Query in the spatial database is a basic feature. I describe several methods about spatial data query and query processing steps. I also gives an algorithm about intersect query in filtering stage in this article to improve the price of database operations, and the efficiency of database queries.