mariadb/mysql-test/suite/rpl/t/rpl_found_rows.test

source include/master-slave.inc;

# It is not possible to replicate FOUND_ROWS() using statement-based
# replication, but there is a workaround that stores the result of
# FOUND_ROWS() into a user variable and then replicates this instead.

# The purpose of this test case is to test that the workaround
# function properly even when inside stored programs (i.e., stored
# routines and triggers).

--echo ==== 0. Setting it all up ====

SET BINLOG_FORMAT=STATEMENT;

--echo **** On Master ****
connection master;
CREATE TABLE t1 (a INT);
CREATE TABLE logtbl (sect INT, test INT, count INT);

INSERT INTO t1 VALUES (1),(2),(3);
INSERT INTO t1 SELECT 2*a+3 FROM t1;
INSERT INTO t1 SELECT 2*a+3 FROM t1;
INSERT INTO t1 SELECT 2*a+3 FROM t1;
INSERT INTO t1 SELECT 2*a+3 FROM t1;
INSERT INTO t1 SELECT 2*a+3 FROM t1;
INSERT INTO t1 SELECT 2*a+3 FROM t1;

--echo #### 1. Using statement mode ####

--echo ==== 1.1. Simple test ====

SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a > 5 ORDER BY a LIMIT 1;

# Instead of
#   INSERT INTO logtbl VALUES(1, 1, FOUND_ROWS());
# we write
SELECT FOUND_ROWS() INTO @a;
INSERT INTO logtbl VALUES(1,1,@a);

SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a < 5 ORDER BY a LIMIT 1;
# Instead of
#   INSERT INTO logtbl VALUES(1, 2, FOUND_ROWS());
# we write
SELECT FOUND_ROWS() INTO @a;
INSERT INTO logtbl VALUES(1,2,@a);

SELECT * FROM logtbl WHERE sect = 1 ORDER BY sect,test;
--echo **** On Slave ****
sync_slave_with_master;
SELECT * FROM logtbl WHERE sect = 1 ORDER BY sect,test;

--echo ==== 1.2. Stored procedure ====

# Here we do both the calculation and the logging. We also do it twice
# to make sure that there are no limitations on how many times it can
# be used.

--echo **** On Master ****
connection master;
--delimiter $$
CREATE PROCEDURE calc_and_log(sect INT, test INT) BEGIN
  DECLARE cnt INT;
  SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a < 5 ORDER BY a LIMIT 1;
  SELECT FOUND_ROWS() INTO cnt;
  INSERT INTO logtbl VALUES(sect,test,cnt);
  SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a > 5 ORDER BY a LIMIT 1;
  SELECT FOUND_ROWS() INTO cnt;
  INSERT INTO logtbl VALUES(sect,test+1,cnt);
END $$
--delimiter ;

CALL calc_and_log(2,1);

--delimiter $$
CREATE PROCEDURE just_log(sect INT, test INT, found_rows INT) BEGIN
  INSERT INTO logtbl VALUES (sect,test,found_rows);
END $$
--delimiter ;

SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a > 5 ORDER BY a LIMIT 1;
SELECT FOUND_ROWS() INTO @found_rows;
CALL just_log(2,3,@found_rows);

SELECT * FROM logtbl WHERE sect = 2 ORDER BY sect,test;
--echo **** On Slave ****
sync_slave_with_master;
SELECT * FROM logtbl WHERE sect = 2 ORDER BY sect,test;

--echo ==== 1.3. Stored functions ====
--echo **** On Master ****
connection master;
--delimiter $$
CREATE FUNCTION log_rows(sect INT, test INT, found_rows INT)
  RETURNS INT
BEGIN
  INSERT INTO logtbl VALUES(sect,test,found_rows);
  RETURN found_rows;
END $$
--delimiter ;

SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a > 5 ORDER BY a LIMIT 1;
SELECT FOUND_ROWS() INTO @found_rows;
SELECT log_rows(3,1,@found_rows), log_rows(3,2,@found_rows);

SELECT * FROM logtbl WHERE sect = 3 ORDER BY sect,test;
--echo **** On Slave ****
sync_slave_with_master;
SELECT * FROM logtbl WHERE sect = 3 ORDER BY sect,test;

--echo ==== 1.9. Cleanup ====
--echo **** On Master ****
connection master;
DELETE FROM logtbl;
DROP PROCEDURE just_log;
DROP PROCEDURE calc_and_log;
DROP FUNCTION log_rows;
sync_slave_with_master;

source include/reset_master_and_slave.inc;

--echo #### 2. Using mixed mode ####

--echo ==== 2.1. Checking a procedure ====

--echo **** On Master ****
connection master;
SET BINLOG_FORMAT=MIXED;

# We will now check some stuff that will not work in statement-based
# replication, but which should cause the binary log to switch to
# row-based logging.

--delimiter $$
CREATE PROCEDURE just_log(sect INT, test INT) BEGIN
  INSERT INTO logtbl VALUES (sect,test,FOUND_ROWS());
END $$
--delimiter ;
sync_slave_with_master;

--echo **** On Master 1 ****
connection master1;
SET BINLOG_FORMAT=MIXED;
SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a > 5 ORDER BY a LIMIT 1;
CALL just_log(1,1);

--echo **** On Master ****
connection master;
SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a > 5 ORDER BY a LIMIT 1;
CALL just_log(1,2);

--echo **** On Master 1 ****

connection master1;
SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a < 5 ORDER BY a LIMIT 1;
CALL just_log(1,3);
sync_slave_with_master;

--echo **** On Master ****
connection master;
SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a > 5 ORDER BY a LIMIT 1;
CALL just_log(1,4);
sync_slave_with_master;

connection master;
SELECT * FROM logtbl WHERE sect = 1 ORDER BY sect,test;
--echo **** On Slave ****
sync_slave_with_master;
SELECT * FROM logtbl WHERE sect = 1 ORDER BY sect,test;

--echo ==== 2.1. Checking a stored function ====
--echo **** On Master ****
connection master;
--delimiter $$
CREATE FUNCTION log_rows(sect INT, test INT)
  RETURNS INT
BEGIN
  DECLARE found_rows INT;
  SELECT FOUND_ROWS() INTO found_rows;
  INSERT INTO logtbl VALUES(sect,test,found_rows);
  RETURN found_rows;
END $$
--delimiter ;

SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a < 5 ORDER BY a LIMIT 1;
SELECT log_rows(2,1), log_rows(2,2);

CREATE TABLE t2 (a INT, b INT);

# Trying with referencing FOUND_ROWS() directly in the trigger.

--delimiter $$
CREATE TRIGGER t2_tr BEFORE INSERT ON t2 FOR EACH ROW
BEGIN
  INSERT INTO logtbl VALUES (NEW.a, NEW.b, FOUND_ROWS());
END $$
--delimiter ;

SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a < 5 ORDER BY a LIMIT 1;
INSERT INTO t2 VALUES (2,3), (2,4);

# Referencing FOUND_ROWS() indirectly.

DROP TRIGGER t2_tr;

--delimiter $$
CREATE TRIGGER t2_tr BEFORE INSERT ON t2 FOR EACH ROW
BEGIN
  DECLARE dummy INT;
  SELECT log_rows(NEW.a, NEW.b) INTO dummy;
END $$
--delimiter ;

SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a > 5 ORDER BY a LIMIT 1;
INSERT INTO t2 VALUES (2,5), (2,6);

# Putting FOUND_ROWS() even lower in the call chain.

connection master;
DROP TRIGGER t2_tr;

--delimiter $$
CREATE PROCEDURE log_me_inner(sect INT, test INT)
BEGIN
  DECLARE dummy INT;
  SELECT log_rows(sect, test) INTO dummy;
  SELECT log_rows(sect, test+1) INTO dummy;
END $$

CREATE PROCEDURE log_me(sect INT, test INT)
BEGIN
  CALL log_me_inner(sect,test);
END $$
--delimiter ;

--delimiter $$
CREATE TRIGGER t2_tr BEFORE INSERT ON t2 FOR EACH ROW
BEGIN
  CALL log_me(NEW.a, NEW.b);
END $$
--delimiter ;

SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a > 5 ORDER BY a LIMIT 1;
INSERT INTO t2 VALUES (2,5), (2,6);

SELECT * FROM logtbl WHERE sect = 2 ORDER BY sect,test;
sync_slave_with_master;
SELECT * FROM logtbl WHERE sect = 2 ORDER BY sect,test;

connection master;
DROP TABLE t1, t2, logtbl;
DROP PROCEDURE just_log;
DROP PROCEDURE log_me;
DROP PROCEDURE log_me_inner;
DROP FUNCTION log_rows;
sync_slave_with_master;