Parsed test spec with 3 sessions starting permutation: controller_locks controller_show s1_upsert s2_upsert controller_show controller_unlock_1_1 controller_unlock_2_1 controller_unlock_1_3 controller_unlock_2_3 controller_show controller_unlock_2_2 controller_show controller_unlock_1_2 controller_show step controller_locks: SELECT pg_advisory_lock(sess, lock), sess, lock FROM generate_series(1, 2) a(sess), generate_series(1,3) b(lock); pg_advisory_lock|sess|lock ----------------+----+---- | 1| 1 | 1| 2 | 1| 3 | 2| 1 | 2| 2 | 2| 3 (6 rows) step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 3 step s1_upsert: INSERT INTO upserttest(key, data) VALUES('k1', 'inserted s1') ON CONFLICT (blurt_and_lock_123(key)) DO UPDATE SET data = upserttest.data || ' with conflict update s1'; s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 3 step s2_upsert: INSERT INTO upserttest(key, data) VALUES('k1', 'inserted s2') ON CONFLICT (blurt_and_lock_123(key)) DO UPDATE SET data = upserttest.data || ' with conflict update s2'; step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step controller_unlock_1_1: SELECT pg_advisory_unlock(1, 1); pg_advisory_unlock ------------------ t (1 row) step controller_unlock_2_1: SELECT pg_advisory_unlock(2, 1); pg_advisory_unlock ------------------ t (1 row) step controller_unlock_1_3: SELECT pg_advisory_unlock(1, 3); pg_advisory_unlock ------------------ t (1 row) s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 2 step controller_unlock_2_3: SELECT pg_advisory_unlock(2, 3); pg_advisory_unlock ------------------ t (1 row) s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 2 step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step controller_unlock_2_2: SELECT pg_advisory_unlock(2, 2); pg_advisory_unlock ------------------ t (1 row) step s2_upsert: <... completed> step controller_show: SELECT * FROM upserttest; key|data ---+----------- k1 |inserted s2 (1 row) step controller_unlock_1_2: SELECT pg_advisory_unlock(1, 2); pg_advisory_unlock ------------------ t (1 row) s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 2 s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 2 step s1_upsert: <... completed> step controller_show: SELECT * FROM upserttest; key|data ---+----------------------------------- k1 |inserted s2 with conflict update s1 (1 row) starting permutation: controller_locks controller_show s1_upsert s2_upsert controller_show controller_unlock_1_1 controller_unlock_2_1 controller_unlock_1_3 controller_unlock_2_3 controller_show controller_unlock_1_2 controller_show controller_unlock_2_2 controller_show step controller_locks: SELECT pg_advisory_lock(sess, lock), sess, lock FROM generate_series(1, 2) a(sess), generate_series(1,3) b(lock); pg_advisory_lock|sess|lock ----------------+----+---- | 1| 1 | 1| 2 | 1| 3 | 2| 1 | 2| 2 | 2| 3 (6 rows) step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 3 step s1_upsert: INSERT INTO upserttest(key, data) VALUES('k1', 'inserted s1') ON CONFLICT (blurt_and_lock_123(key)) DO UPDATE SET data = upserttest.data || ' with conflict update s1'; s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 3 step s2_upsert: INSERT INTO upserttest(key, data) VALUES('k1', 'inserted s2') ON CONFLICT (blurt_and_lock_123(key)) DO UPDATE SET data = upserttest.data || ' with conflict update s2'; step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step controller_unlock_1_1: SELECT pg_advisory_unlock(1, 1); pg_advisory_unlock ------------------ t (1 row) step controller_unlock_2_1: SELECT pg_advisory_unlock(2, 1); pg_advisory_unlock ------------------ t (1 row) step controller_unlock_1_3: SELECT pg_advisory_unlock(1, 3); pg_advisory_unlock ------------------ t (1 row) s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 2 step controller_unlock_2_3: SELECT pg_advisory_unlock(2, 3); pg_advisory_unlock ------------------ t (1 row) s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 2 step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step controller_unlock_1_2: SELECT pg_advisory_unlock(1, 2); pg_advisory_unlock ------------------ t (1 row) step s1_upsert: <... completed> step controller_show: SELECT * FROM upserttest; key|data ---+----------- k1 |inserted s1 (1 row) step controller_unlock_2_2: SELECT pg_advisory_unlock(2, 2); pg_advisory_unlock ------------------ t (1 row) s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 2 s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 2 step s2_upsert: <... completed> step controller_show: SELECT * FROM upserttest; key|data ---+----------------------------------- k1 |inserted s1 with conflict update s2 (1 row) starting permutation: controller_locks controller_show s1_insert_toast s2_insert_toast controller_show controller_unlock_1_1 controller_unlock_2_1 controller_unlock_1_3 controller_unlock_2_3 controller_show controller_unlock_1_2 controller_show_count controller_unlock_2_2 controller_show_count step controller_locks: SELECT pg_advisory_lock(sess, lock), sess, lock FROM generate_series(1, 2) a(sess), generate_series(1,3) b(lock); pg_advisory_lock|sess|lock ----------------+----+---- | 1| 1 | 1| 2 | 1| 3 | 2| 1 | 2| 2 | 2| 3 (6 rows) step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) s1: NOTICE: blurt_and_lock_123() called for k2 in session 1 s1: NOTICE: acquiring advisory lock on 3 step s1_insert_toast: INSERT INTO upserttest VALUES('k2', ctoast_large_val()) ON CONFLICT DO NOTHING; s2: NOTICE: blurt_and_lock_123() called for k2 in session 2 s2: NOTICE: acquiring advisory lock on 3 step s2_insert_toast: INSERT INTO upserttest VALUES('k2', ctoast_large_val()) ON CONFLICT DO NOTHING; step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step controller_unlock_1_1: SELECT pg_advisory_unlock(1, 1); pg_advisory_unlock ------------------ t (1 row) step controller_unlock_2_1: SELECT pg_advisory_unlock(2, 1); pg_advisory_unlock ------------------ t (1 row) step controller_unlock_1_3: SELECT pg_advisory_unlock(1, 3); pg_advisory_unlock ------------------ t (1 row) s1: NOTICE: blurt_and_lock_123() called for k2 in session 1 s1: NOTICE: acquiring advisory lock on 2 step controller_unlock_2_3: SELECT pg_advisory_unlock(2, 3); pg_advisory_unlock ------------------ t (1 row) s2: NOTICE: blurt_and_lock_123() called for k2 in session 2 s2: NOTICE: acquiring advisory lock on 2 step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step controller_unlock_1_2: SELECT pg_advisory_unlock(1, 2); pg_advisory_unlock ------------------ t (1 row) step s1_insert_toast: <... completed> step controller_show_count: SELECT COUNT(*) FROM upserttest; count ----- 1 (1 row) step controller_unlock_2_2: SELECT pg_advisory_unlock(2, 2); pg_advisory_unlock ------------------ t (1 row) s2: NOTICE: blurt_and_lock_123() called for k2 in session 2 s2: NOTICE: acquiring advisory lock on 2 s2: NOTICE: blurt_and_lock_123() called for k2 in session 2 s2: NOTICE: acquiring advisory lock on 2 step s2_insert_toast: <... completed> step controller_show_count: SELECT COUNT(*) FROM upserttest; count ----- 1 (1 row) starting permutation: controller_locks controller_show s1_begin s2_begin s1_upsert s2_upsert controller_show controller_unlock_1_1 controller_unlock_2_1 controller_unlock_1_3 controller_unlock_2_3 controller_show controller_unlock_1_2 controller_show controller_unlock_2_2 controller_show s1_commit controller_show s2_commit controller_show step controller_locks: SELECT pg_advisory_lock(sess, lock), sess, lock FROM generate_series(1, 2) a(sess), generate_series(1,3) b(lock); pg_advisory_lock|sess|lock ----------------+----+---- | 1| 1 | 1| 2 | 1| 3 | 2| 1 | 2| 2 | 2| 3 (6 rows) step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step s1_begin: BEGIN; step s2_begin: BEGIN; s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 3 step s1_upsert: INSERT INTO upserttest(key, data) VALUES('k1', 'inserted s1') ON CONFLICT (blurt_and_lock_123(key)) DO UPDATE SET data = upserttest.data || ' with conflict update s1'; s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 3 step s2_upsert: INSERT INTO upserttest(key, data) VALUES('k1', 'inserted s2') ON CONFLICT (blurt_and_lock_123(key)) DO UPDATE SET data = upserttest.data || ' with conflict update s2'; step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step controller_unlock_1_1: SELECT pg_advisory_unlock(1, 1); pg_advisory_unlock ------------------ t (1 row) step controller_unlock_2_1: SELECT pg_advisory_unlock(2, 1); pg_advisory_unlock ------------------ t (1 row) step controller_unlock_1_3: SELECT pg_advisory_unlock(1, 3); pg_advisory_unlock ------------------ t (1 row) s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 2 step controller_unlock_2_3: SELECT pg_advisory_unlock(2, 3); pg_advisory_unlock ------------------ t (1 row) s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 2 step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step controller_unlock_1_2: SELECT pg_advisory_unlock(1, 2); pg_advisory_unlock ------------------ t (1 row) step s1_upsert: <... completed> step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step controller_unlock_2_2: SELECT pg_advisory_unlock(2, 2); pg_advisory_unlock ------------------ t (1 row) s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 2 s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 2 step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step s1_commit: COMMIT; s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 2 step s2_upsert: <... completed> step controller_show: SELECT * FROM upserttest; key|data ---+----------- k1 |inserted s1 (1 row) step s2_commit: COMMIT; step controller_show: SELECT * FROM upserttest; key|data ---+----------------------------------- k1 |inserted s1 with conflict update s2 (1 row) starting permutation: s1_create_non_unique_index s1_confirm_index_order controller_locks controller_show s2_begin s1_upsert s2_upsert controller_show controller_unlock_1_1 controller_unlock_2_1 controller_unlock_1_3 controller_unlock_2_3 controller_show controller_lock_2_4 controller_unlock_2_2 controller_show controller_unlock_1_2 controller_print_speculative_locks controller_unlock_2_4 s2_noop controller_print_speculative_locks s2_commit s1_noop controller_show controller_print_speculative_locks step s1_create_non_unique_index: CREATE INDEX upserttest_key_idx ON upserttest((blurt_and_lock_4(key))); step s1_confirm_index_order: SELECT 'upserttest_key_uniq_idx'::regclass::int8 < 'upserttest_key_idx'::regclass::int8; ?column? -------- t (1 row) step controller_locks: SELECT pg_advisory_lock(sess, lock), sess, lock FROM generate_series(1, 2) a(sess), generate_series(1,3) b(lock); pg_advisory_lock|sess|lock ----------------+----+---- | 1| 1 | 1| 2 | 1| 3 | 2| 1 | 2| 2 | 2| 3 (6 rows) step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step s2_begin: BEGIN; s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 3 step s1_upsert: INSERT INTO upserttest(key, data) VALUES('k1', 'inserted s1') ON CONFLICT (blurt_and_lock_123(key)) DO UPDATE SET data = upserttest.data || ' with conflict update s1'; s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 3 step s2_upsert: INSERT INTO upserttest(key, data) VALUES('k1', 'inserted s2') ON CONFLICT (blurt_and_lock_123(key)) DO UPDATE SET data = upserttest.data || ' with conflict update s2'; step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step controller_unlock_1_1: SELECT pg_advisory_unlock(1, 1); pg_advisory_unlock ------------------ t (1 row) step controller_unlock_2_1: SELECT pg_advisory_unlock(2, 1); pg_advisory_unlock ------------------ t (1 row) step controller_unlock_1_3: SELECT pg_advisory_unlock(1, 3); pg_advisory_unlock ------------------ t (1 row) s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 2 step controller_unlock_2_3: SELECT pg_advisory_unlock(2, 3); pg_advisory_unlock ------------------ t (1 row) s2: NOTICE: blurt_and_lock_123() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 2 step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step controller_lock_2_4: SELECT pg_advisory_lock(2, 4); pg_advisory_lock ---------------- (1 row) step controller_unlock_2_2: SELECT pg_advisory_unlock(2, 2); pg_advisory_unlock ------------------ t (1 row) s2: NOTICE: blurt_and_lock_4() called for k1 in session 2 s2: NOTICE: acquiring advisory lock on 4 step controller_show: SELECT * FROM upserttest; key|data ---+---- (0 rows) step controller_unlock_1_2: SELECT pg_advisory_unlock(1, 2); pg_advisory_unlock ------------------ t (1 row) s1: NOTICE: blurt_and_lock_4() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 4 s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 2 s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 2 step controller_print_speculative_locks: SELECT pa.application_name, locktype, mode, granted FROM pg_locks pl JOIN pg_stat_activity pa USING (pid) WHERE locktype IN ('spectoken', 'transactionid') AND pa.datname = current_database() AND pa.application_name LIKE 'isolation/insert-conflict-specconflict/s%' ORDER BY 1, 2, 3, 4; application_name |locktype |mode |granted -----------------------------------------+-------------+-------------+------- isolation/insert-conflict-specconflict/s1|spectoken |ShareLock |f isolation/insert-conflict-specconflict/s1|transactionid|ExclusiveLock|t isolation/insert-conflict-specconflict/s2|spectoken |ExclusiveLock|t isolation/insert-conflict-specconflict/s2|transactionid|ExclusiveLock|t (4 rows) step controller_unlock_2_4: SELECT pg_advisory_unlock(2, 4); pg_advisory_unlock ------------------ t (1 row) s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 2 step s2_upsert: <... completed> step s2_noop: step controller_print_speculative_locks: SELECT pa.application_name, locktype, mode, granted FROM pg_locks pl JOIN pg_stat_activity pa USING (pid) WHERE locktype IN ('spectoken', 'transactionid') AND pa.datname = current_database() AND pa.application_name LIKE 'isolation/insert-conflict-specconflict/s%' ORDER BY 1, 2, 3, 4; application_name |locktype |mode |granted -----------------------------------------+-------------+-------------+------- isolation/insert-conflict-specconflict/s1|transactionid|ExclusiveLock|t isolation/insert-conflict-specconflict/s1|transactionid|ShareLock |f isolation/insert-conflict-specconflict/s2|transactionid|ExclusiveLock|t (3 rows) step s2_commit: COMMIT; s1: NOTICE: blurt_and_lock_123() called for k1 in session 1 s1: NOTICE: acquiring advisory lock on 2 step s1_upsert: <... completed> step s1_noop: step controller_show: SELECT * FROM upserttest; key|data ---+----------------------------------- k1 |inserted s2 with conflict update s1 (1 row) step controller_print_speculative_locks: SELECT pa.application_name, locktype, mode, granted FROM pg_locks pl JOIN pg_stat_activity pa USING (pid) WHERE locktype IN ('spectoken', 'transactionid') AND pa.datname = current_database() AND pa.application_name LIKE 'isolation/insert-conflict-specconflict/s%' ORDER BY 1, 2, 3, 4; application_name|locktype|mode|granted ----------------+--------+----+------- (0 rows)