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TABLE: "session_variables"
INDEXES: PK (VARIABLE_NAME)
===== SETUP =====
## Connection Default
## Disable events from the default connection
## Create user1, user2, user3
CREATE USER user1@localhost;
CREATE USER user2@localhost;
CREATE USER user3@localhost;
GRANT ALL ON *.* to 'user1'@localhost;
GRANT ALL ON *.* to 'user2'@localhost;
GRANT ALL ON *.* to 'user3'@localhost;
## Setup test connection 1
## Setup test connection 2
## Setup test connection 3
## Default connection
## Create data tables
CREATE TABLE test.t1(a INT, b INT, c INT, d INT DEFAULT 0, PRIMARY KEY(a), INDEX index_b(b), INDEX index_cb(c, b));
CREATE TABLE test.t2 LIKE test.t1;
CREATE TABLE test.t3 LIKE test.t1;
## Generate event data from 3 connections
## Connection 1
## Connection 2
## Connection 3
## Connection 2
## Create prepared statements on connection 2
PREPARE st1 FROM 'SELECT SQRT(POW(?,2) + POW(?,2)) AS hypotenuse';
PREPARE st3 FROM 'INSERT INTO test.t1 SELECT * FROM test.t1 WHERE a<=?';
PREPARE st4 FROM '(SELECT a FROM test.t1) UNION (SELECT a+10 FROM test.t1) ORDER BY RAND()*0+a';
## Create stored procedure connection 2
CREATE PROCEDURE SampleProc1()
BEGIN
SET @table = 'test.t1';
SET @s = CONCAT('SELECT * FROM ', @table);
PREPARE st2 FROM @s;
END|
Call SampleProc1() to prepare a statement
CALL SampleProc1();
## Connection default
## Use Connection 2 for default target thread id
## Create index_test() procedure
===== BEGIN TEST =====
========
SELECT * FROM performance_schema.session_variables WHERE variable_name is null
OK: Handler_read_key
OK: Result set: Empty Expected: Empty
OK: Extra rows: 0 Missing rows: 0
========
SELECT * FROM performance_schema.session_variables WHERE variable_name is not null
OK: Handler_read_key
OK: Result set: Non-empty Expected: Non-empty
OK: Extra rows: 0 Missing rows: 0
========
SELECT * FROM performance_schema.session_variables WHERE variable_name = 'binlog_format'
OK: Handler_read_key
OK: Result set: Non-empty Expected: Non-empty
OK: Extra rows: 0 Missing rows: 0
========
SELECT * FROM performance_schema.session_variables WHERE variable_name != 'binlog_format'
OK: Handler_read_key
OK: Result set: Non-empty Expected: Non-empty
OK: Extra rows: 0 Missing rows: 0
========
SELECT * FROM performance_schema.session_variables WHERE variable_name = 'impossible'
OK: Handler_read_key
OK: Result set: Empty Expected: Empty
OK: Extra rows: 0 Missing rows: 0
========
SELECT * FROM performance_schema.session_variables WHERE variable_name != 'impossible' ORDER BY variable_name DESC
OK: Handler_read_key
OK: Result set: Non-empty Expected: Non-empty
OK: Extra rows: 0 Missing rows: 0
===== CLEAN UP =====
## Default connection
DEALLOCATE PREPARE st1;
DEALLOCATE PREPARE st2;
DEALLOCATE PREPARE st3;
DEALLOCATE PREPARE st4;
DROP PROCEDURE SampleProc1;
DROP PROCEDURE index_test;
DROP TABLE IF EXISTS test.indexes_off;
DROP TABLE IF EXISTS test.indexes_on;
DROP TABLE test.t1;
DROP TABLE test.t2;
DROP TABLE test.t3;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM user1@localhost;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM user2@localhost;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM user3@localhost;
DROP USER user1@localhost;
DROP USER user2@localhost;
DROP USER user3@localhost;
UPDATE performance_schema.threads SET INSTRUMENTED = 'YES';
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