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# # Bug #21025880 DUPLICATE UK VALUES IN READ-COMMITTED(AGAIN) # CREATE TABLE t1 ( a INT NOT NULL, b INT NOT NULL, PRIMARY KEY(b), UNIQUE KEY(a)) ENGINE=INNODB; SET @old_innodb_stats_auto_recalc = @@innodb_stats_auto_recalc; SET GLOBAL innodb_stats_auto_recalc = OFF; SET GLOBAL innodb_purge_stop_now = ON; SET @old_tx_isolation = @@tx_isolation; Warnings: Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead SET GLOBAL tx_isolation = 'READ-COMMITTED'; Warnings: Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead SET @old_innodb_lock_wait_timeout = @@innodb_lock_wait_timeout; SET GLOBAL innodb_lock_wait_timeout = 1; INSERT INTO t1 VALUES (1,1),(2,2); DELETE FROM t1; SET debug_sync = 'row_ins_sec_index_entry_dup_locks_created SIGNAL con1_locks_done WAIT_FOR con1_go'; SET debug_sync = 'ha_commit_trans_after_acquire_commit_lock SIGNAL con1_insert_done WAIT_FOR con1_finish'; REPLACE INTO t1 VALUES (1,2); SET debug_sync = 'now WAIT_FOR con1_locks_done'; SET debug_sync = 'lock_wait_suspend_thread_enter SIGNAL con2_blocked WAIT_FOR con2_go'; SET debug_sync = 'ha_commit_trans_after_acquire_commit_lock SIGNAL con2_insert_done WAIT_FOR con2_finish'; SET debug_sync = 'ib_after_row_insert SIGNAL con2_insert_done'; REPLACE INTO t1 VALUES (1,3); SET debug_sync = 'now WAIT_FOR con2_blocked'; SET GLOBAL innodb_purge_run_now=ON; SET debug_sync = 'now SIGNAL con2_go WAIT_FOR con2_insert_done'; SET debug_sync = 'now SIGNAL con1_go WAIT_FOR con1_insert_done'; SET debug_sync = 'now SIGNAL con1_finish'; SET debug_sync = 'now SIGNAL con2_finish'; SELECT * FROM t1; a b 1 2 CHECK TABLE t1; Table Op Msg_type Msg_text test.t1 check status OK DROP TABLE t1; SET GLOBAL innodb_stats_auto_recalc = @old_innodb_stats_auto_recalc; SET GLOBAL tx_isolation = @old_tx_isolation; Warnings: Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead SET GLOBAL innodb_lock_wait_timeout = @old_innodb_lock_wait_timeout; SET DEBUG_SYNC= 'RESET'; CREATE TABLE t1 ( a INT NOT NULL, b INT NOT NULL, PRIMARY KEY(b), UNIQUE KEY(a)) ENGINE=INNODB; SET @old_innodb_stats_auto_recalc = @@innodb_stats_auto_recalc; SET GLOBAL innodb_stats_auto_recalc = OFF; SET GLOBAL innodb_purge_stop_now = ON; SET @old_tx_isolation = @@tx_isolation; Warnings: Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead SET GLOBAL tx_isolation = 'READ-COMMITTED'; Warnings: Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead SET @old_innodb_lock_wait_timeout = @@innodb_lock_wait_timeout; SET GLOBAL innodb_lock_wait_timeout = 1; INSERT INTO t1 VALUES (1,1),(2,2); DELETE FROM t1; SET debug_sync = 'row_ins_sec_index_entry_dup_locks_created SIGNAL con1_locks_done WAIT_FOR con1_go'; SET debug_sync = 'ha_commit_trans_after_acquire_commit_lock SIGNAL con1_insert_done WAIT_FOR con1_finish'; INSERT INTO t1 values (1,2) ON DUPLICATE KEY UPDATE a=2; SET debug_sync = 'now WAIT_FOR con1_locks_done'; SET debug_sync = 'lock_wait_suspend_thread_enter SIGNAL con2_blocked WAIT_FOR con2_go'; SET debug_sync = 'ha_commit_trans_after_acquire_commit_lock SIGNAL con2_insert_done WAIT_FOR con2_finish'; SET debug_sync = 'ib_after_row_insert SIGNAL con2_insert_done'; REPLACE INTO t1 VALUES (1,3); SET debug_sync = 'now WAIT_FOR con2_blocked'; SET GLOBAL innodb_purge_run_now=ON; SET debug_sync = 'now SIGNAL con2_go WAIT_FOR con2_insert_done'; SET debug_sync = 'now SIGNAL con1_go WAIT_FOR con1_insert_done'; SET debug_sync = 'now SIGNAL con1_finish'; SET debug_sync = 'now SIGNAL con2_finish'; SELECT * FROM t1; a b 1 2 CHECK TABLE t1; Table Op Msg_type Msg_text test.t1 check status OK DROP TABLE t1; SET GLOBAL innodb_stats_auto_recalc = @old_innodb_stats_auto_recalc; SET GLOBAL tx_isolation = @old_tx_isolation; Warnings: Warning 1287 '@@tx_isolation' is deprecated and will be removed in a future release. Please use '@@transaction_isolation' instead SET GLOBAL innodb_lock_wait_timeout = @old_innodb_lock_wait_timeout; SET DEBUG_SYNC= 'RESET';