Edit File: concurrent_insert_func.result
DROP TABLE IF EXISTS t1; ## Creating new table ## CREATE TABLE t1 ( name VARCHAR(30) ); '#--------------------FN_DYNVARS_018_01-------------------------#' SET @start_value= @@global.concurrent_insert; ## Setting initial value of variable to 1 ## SET @@global.concurrent_insert = 1; INSERT INTO t1(name) VALUES('Record_1'); INSERT INTO t1(name) VALUES('Record_2'); INSERT INTO t1(name) VALUES('Record_3'); ## locking table ## LOCK TABLE t1 READ LOCAL; ## Creating new connection to insert some rows in table ## connection test_con1; ## New records should come at the end of all rows ## INSERT INTO t1(name) VALUES('Record_4'); SELECT * FROM t1; name Record_1 Record_2 Record_3 Record_4 ## unlocking tables ## connection default; UNLOCK TABLES; ## deleting record to create hole in table ## DELETE FROM t1 WHERE name ='Record_2'; '#--------------------FN_DYNVARS_018_02-------------------------#' LOCK TABLE t1 READ LOCAL; connection test_con1; SET @@global.concurrent_insert=1; ## send INSERT which should be blocked until unlock of the table ## INSERT INTO t1(name) VALUES('Record_7'); connection default; ## show processlist info and state ## SELECT state,info FROM INFORMATION_SCHEMA.PROCESSLIST WHERE state= "Waiting for table level lock" AND info LIKE "INSERT INTO t1%"; state info Waiting for table level lock INSERT INTO t1(name) VALUES('Record_7') ## table contents befor UNLOCK ## SELECT * FROM t1; name Record_1 Record_3 Record_4 UNLOCK TABLES; ## table contens after UNLOCK ## SELECT * FROM t1; name Record_1 Record_7 Record_3 Record_4 INSERT INTO t1(name) VALUES('Record_6'); connection test_con1; SELECT * FROM t1; name Record_1 Record_7 Record_3 Record_4 Record_6 connection default; '#--------------------FN_DYNVARS_018_03-------------------------#' ## lock table and connect with connection1 ## LOCK TABLE t1 READ LOCAL; connection test_con1; ## setting value of concurrent_insert to 2 ## SET @@global.concurrent_insert=2; ## Inserting record in table, record should go at the end of the table ## INSERT INTO t1(name) VALUES('Record_5'); SELECT * FROM t1; name Record_1 Record_7 Record_3 Record_4 Record_6 Record_5 SELECT @@concurrent_insert; @@concurrent_insert ALWAYS connection default; ## Unlocking table ## UNLOCK TABLES; SELECT * FROM t1; name Record_1 Record_7 Record_3 Record_4 Record_6 Record_5 ## Inserting new row, this should go in the hole ## INSERT INTO t1(name) VALUES('Record_6'); SELECT * FROM t1; name Record_1 Record_7 Record_3 Record_4 Record_6 Record_5 Record_6 ## connection test_con1 ## DELETE FROM t1 WHERE name ='Record_3'; SELECT * FROM t1; name Record_1 Record_7 Record_4 Record_6 Record_5 Record_6 ## Dropping table ## DROP TABLE t1; ## Disconnecting connection ## SET @@global.concurrent_insert= @start_value;
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