rtreedepth       127406 third_party/sqlite/amalgamation/sqlite3.c     rc = sqlite3_create_function(db, "rtreedepth", 1, utf8, 0,rtreedepth, 0, 0);
rtreedepth       3149 third_party/sqlite/src/ext/rtree/rtree.c     rc = sqlite3_create_function(db, "rtreedepth", 1, utf8, 0,rtreedepth, 0, 0);