“…Regarding recursive query optimizations, there are approaches for reducing its intermediary size's results (ORDONEZ, 2005); partitioning methods for the edge table (GAO et al, 2014;HONG et al, 2017;SEO;AHN;IM, 2019); specialized data representations based on adjacency lists (SUN et al, 2015;CHEN, 2013;AHMED;THOMO, 2017); in-memory graph process engines (MA et al, 2016;ZHAO et al, 2019); relational matrix algebra adaptations (DOLMATOVA; AUGSTEN; BÖHLEN, YU, 2017). The relevance of recursive queries as a field of study can be seen through several research articles (ORDONEZ; CABRERA; GURRAM, 2017;JINDAL et al, 2015;RAJ;PATEL, 2015;SIMMEN et al, 2014;PASSING et al, 2017;FLORATOS et al, 2018;ORDONEZ, 2017). Hence, the large quantity of research and studies over recursive queries motivated us to further improve recursive queries' performance.…”