1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
|
# Tests for PERFORMANCE_SCHEMA
# Test requires: sp-protocol/ps-protocol/view-protocol/cursor-protocol disabled
--source include/no_protocol.inc
--echo
--echo ================================================================================
--echo SETUP
--echo ================================================================================
# Create a new connection, to get clean statistics
connect(con1, localhost, root,,);
# Create a table
CREATE TABLE test.t1 (c1 INT);
#prepare a statement
PREPARE stmt1 FROM "SELECT c1 FROM test.t1";
#execute prepared statement;
EXECUTE stmt1;
# Check status from SHOW STATUS
SHOW SESSION STATUS LIKE "%com_stmt_%prepare%";
#check the statistics
SELECT * FROM performance_schema.session_status WHERE VARIABLE_NAME LIKE "%com_stmt%";
SELECT VARIABLE_VALUE FROM performance_schema.global_status
WHERE VARIABLE_NAME LIKE "Com_stmt_reprepare"
INTO @count_global_reprepare_before;
# Alter table to make server reprepare the statement
ALTER TABLE test.t1 ADD COLUMN c2 INTEGER;
#execute prepared statement;
EXECUTE stmt1;
# Check status from SHOW STATUS
SHOW SESSION STATUS LIKE "%com_stmt_%prepare%";
#check the statistics
SELECT * FROM performance_schema.session_status WHERE VARIABLE_NAME LIKE "%com_stmt%";
SELECT VARIABLE_VALUE FROM performance_schema.global_status
WHERE VARIABLE_NAME LIKE "Com_stmt_reprepare"
INTO @count_global_reprepare_after;
# Should increment by 1
SELECT @count_global_reprepare_after - @count_global_reprepare_before;
--echo
--echo ================================================================================
--echo CLEANUP
--echo ================================================================================
DROP TABLE test.t1;
--disconnect con1
--connection default
|