connection node_2; connection node_1; connection node_1; SET AUTOCOMMIT=OFF; START TRANSACTION; COMMIT; connection node_2; CREATE TABLE sum_table (f1 INTEGER); SELECT SUM(f1) = 900 FROM sum_table; SUM(f1) = 900 1 connection node_1; SET AUTOCOMMIT=OFF; START TRANSACTION; connection node_2; SET AUTOCOMMIT=OFF; START TRANSACTION; UPDATE t900 SET f1 = 3; connection node_1; COMMIT; connection node_2; COMMIT; ERROR 40001: Deadlock found when trying to get lock; try restarting transaction DROP SCHEMA test; CREATE SCHEMA test;