post push fix for bug#40595

Addition of hander function was_semi_consistent_read

mysql-test/r/partition_innodb_semi_consistent.result:
  post push fix for bug#40595
  Addition of hander function was_semi_consistent_read
  
  Added test result
mysql-test/t/partition_innodb_semi_consistent-master.opt:
  post push fix for bug#40595
  Addition of hander function was_semi_consistent_read
  
  Added test opt file
mysql-test/t/partition_innodb_semi_consistent.test:
  post push fix for bug#40595
  Addition of hander function was_semi_consistent_read
  
  Added test case
sql/ha_partition.cc:
  post push fix for bug#40595
  Addition of hander function was_semi_consistent_read
  
  The lack of was_semi_consistent_read opened a regression
  for bug-31310 when useing a partitioned InnoDB table

1 files changed, 128 insertions, 0 deletions

diff --git a/mysql-test/r/partition_innodb_semi_consistent.result b/mysql-test/r/partition_innodb_semi_consistent.result
new file mode 100644
index 00000000000..1bb39af043a
--- /dev/null
+++ b/mysql-test/r/partition_innodb_semi_consistent.result
@@ -0,0 +1,128 @@
+drop table if exists t1;
+set binlog_format=mixed;
+set session transaction isolation level read committed;
+create table t1(a int not null)
+engine=innodb
+DEFAULT CHARSET=latin1
+PARTITION BY RANGE(a)
+(PARTITION p0 VALUES LESS THAN (20),
+PARTITION p1 VALUES LESS THAN MAXVALUE);
+insert into t1 values (1),(2),(3),(4),(5),(6),(7);
+set autocommit=0;
+select * from t1 where a=3 lock in share mode;
+a
+3
+set binlog_format=mixed;
+set session transaction isolation level read committed;
+set autocommit=0;
+update t1 set a=10 where a=5;
+ERROR HY000: Lock wait timeout exceeded; try restarting transaction
+commit;
+update t1 set a=10 where a=5;
+select * from t1 where a=2 for update;
+ERROR HY000: Lock wait timeout exceeded; try restarting transaction
+select * from t1 where a=2 limit 1 for update;
+a
+2
+update t1 set a=11 where a=6;
+update t1 set a=12 where a=2;
+ERROR HY000: Lock wait timeout exceeded; try restarting transaction
+update t1 set a=13 where a=1;
+ERROR HY000: Lock wait timeout exceeded; try restarting transaction
+commit;
+update t1 set a=14 where a=1;
+commit;
+select * from t1;
+a
+10
+11
+14
+2
+3
+4
+7
+drop table t1;
+SET SESSION AUTOCOMMIT = 0;
+SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
+set binlog_format=mixed;
+# Switch to connection con1
+CREATE TABLE t1 (a INT PRIMARY KEY, b VARCHAR(256))
+ENGINE = InnoDB
+PARTITION BY RANGE (a)
+(PARTITION p0 VALUES LESS THAN (300),
+PARTITION p1 VALUES LESS THAN MAXVALUE);
+INSERT INTO t1 VALUES (1,2);
+# 1. test for locking:
+BEGIN;
+UPDATE t1 SET b = 12 WHERE a = 1;
+affected rows: 1
+info: Rows matched: 1  Changed: 1  Warnings: 0
+SELECT * FROM t1;
+a	b
+1	12
+# Switch to connection con2
+UPDATE t1 SET b = 21 WHERE a = 1;
+ERROR HY000: Lock wait timeout exceeded; try restarting transaction
+# Switch to connection con1
+SELECT * FROM t1;
+a	b
+1	12
+ROLLBACK;
+# 2. test for serialized update:
+CREATE TABLE t2 (a INT);
+TRUNCATE t1;
+INSERT INTO t1 VALUES (1,'init');
+CREATE PROCEDURE p1()
+BEGIN
+UPDATE t1 SET b = CONCAT(b, '+con2')  WHERE a = 1;
+INSERT INTO t2 VALUES ();
+END|
+BEGIN;
+UPDATE t1 SET b = CONCAT(b, '+con1') WHERE a = 1;
+affected rows: 1
+info: Rows matched: 1  Changed: 1  Warnings: 0
+SELECT * FROM t1;
+a	b
+1	init+con1
+# Switch to connection con2
+CALL p1;;
+# Switch to connection con1
+SELECT * FROM t1;
+a	b
+1	init+con1
+COMMIT;
+SELECT * FROM t1;
+a	b
+1	init+con1
+# Switch to connection con2
+SELECT * FROM t1;
+a	b
+1	init+con1+con2
+# Switch to connection con1
+# 3. test for updated key column:
+TRUNCATE t1;
+TRUNCATE t2;
+INSERT INTO t1 VALUES (1,'init');
+BEGIN;
+UPDATE t1 SET a = 2, b = CONCAT(b, '+con1') WHERE a = 1;
+affected rows: 1
+info: Rows matched: 1  Changed: 1  Warnings: 0
+SELECT * FROM t1;
+a	b
+2	init+con1
+# Switch to connection con2
+CALL p1;;
+# Switch to connection con1
+SELECT * FROM t1;
+a	b
+2	init+con1
+COMMIT;
+SELECT * FROM t1;
+a	b
+2	init+con1
+# Switch to connection con2
+SELECT * FROM t1;
+a	b
+2	init+con1
+DROP PROCEDURE p1;
+DROP TABLE t1, t2;